2004 Peterbilt 385 Suspension Parts

Essential Suspension Parts for 2004 Peterbilt 385s

Bulldog HD – Heavy-Duty Shock Absorber – 1995-2002 Peterbilt 330 (Part No.HD1215-0037)

Heavy-Duty Shock Absorber - 1995-2002 Peterbilt 330

from

$86.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1981-2016 Kenworth C500 (Part No.HD1214-0609)

Heavy-Duty Shock Absorber - 1981-2016 Kenworth C500

from

$62.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Shock Absorber (Part No.65528)

Magnum Shock Absorber

from

$134.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Shock Absorber (Part No.65404)

Magnum Shock Absorber

from

$112.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Shock Absorber (Part No.74409)

Magnum Shock Absorber

from

$118.99
Tough Monroe® Magnum shock absorbers for transit buses deliver a firm, controlled ride for greater stability and increased driver comfort. Designed to meet or exceed demanding OE manufacturer specifications

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Loop welding technique Resistance weld with additional 360-degree weld to provide up to 15,000 lbs. (6,804 kg) tensile strength for maximum durability – when required
  • 1-3/4-inch (44.6 mm) Bore Larger bore gives accessibility to finer tune the valving by allowing more hydraulic fluid to dissipate heat for better vehicle control
  • 2-3/4-inch (69.85 mm) Reserve Tube More fluid for more consistent performance – when required
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • All weather fluid Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • 10-stage valving Reacts to wide range of driving conditions – on most applications
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • Single-lip, low-friction oil seal
See More

Bulldog HD – Heavy-Duty Shock Absorber – 2013-2014 Kenworth T680 (Part No.HD1215-0034)

Heavy-Duty Shock Absorber - 2013-2014 Kenworth T680

from

$88.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Rear Suspension Shock Absorber (Part No.65402)

Magnum Rear Suspension Shock Absorber

from

$125.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Rear; Front Suspension Shock Absorber (Part No.65411)

Magnum Rear; Front Suspension Shock Absorber

from

$121.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1986-2008 Peterbilt 357 (Part No.HD1215-0033)

Heavy-Duty Shock Absorber - 1986-2008 Peterbilt 357

from

$81.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Shock Absorber (Part No.66428)

Magnum Shock Absorber

from

$81.99
The Monroe Magnum shock absorber for class 3-6 vehicles is gas-charged for quicker response and a stable, more comfortable ride. Designed to handle the demands of high mileage and severe use vehicles, replace worn-out units with Magnum shocks to help reduce excessive vibration.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES   — Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • FOR HARDWORKING COMMERCIAL VEHICLES áá– Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2-in. or 2-1/4-in. reserve tube holds more fluid to improve performance (when required)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (on most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration, and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1995-2005 Peterbilt 300 (Part No.HD1214-0612)

Heavy-Duty Shock Absorber - 1995-2005 Peterbilt 300

from

$67.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1986-2007 Kenworth T600A (Part No.HD1215-0085)

Heavy-Duty Shock Absorber - 1986-2007 Kenworth T600A

from

$83.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Rear Suspension Shock Absorber (Part No.65495)

Magnum Rear Suspension Shock Absorber

from

$132.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Rear Suspension Shock Absorber (Part No.66424)

Magnum Rear Suspension Shock Absorber

from

$84.99
The Monroe Magnum shock absorber for class 3-6 vehicles is gas-charged for quicker response and a stable, more comfortable ride. Designed to handle the demands of high mileage and severe use vehicles, replace worn-out units with Magnum shocks to help reduce excessive vibration.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES   — Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • FOR HARDWORKING COMMERCIAL VEHICLES áá– Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2-in. or 2-1/4-in. reserve tube holds more fluid to improve performance (when required)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (on most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration, and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
See More

Monroe – Magnum Shock Absorber (Part No.65434)

Magnum Shock Absorber

from

$123.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
See More

Bulldog HD – Heavy-Duty Shock Absorber – 2019-2020 Kenworth W990 (Part No.HD1215-0056)

Heavy-Duty Shock Absorber - 2019-2020 Kenworth W990

from

$81.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Shock Absorber (Part No.65113)

Magnum Shock Absorber

from

$109.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1989-1994 Ford F600 (Part No.HD1215-0078)

Heavy-Duty Shock Absorber - 1989-1994 Ford F600

from

$88.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1987-2018 Peterbilt 320 (Part No.HD1215-0032)

Heavy-Duty Shock Absorber - 1987-2018 Peterbilt 320

from

$72.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1997-2007 Kenworth T800 FWD (Part No.HD1215-0020)

Heavy-Duty Shock Absorber - 1997-2007 Kenworth T800 FWD

from

$77.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1990-1996 Peterbilt 375 (Part No.HD1215-0061)

Heavy-Duty Shock Absorber - 1990-1996 Peterbilt 375

from

$91.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1975-1978 GMC G35 (Part No.HD1214-0534)

Heavy-Duty Shock Absorber - 1975-1978 GMC G35

from

$47.49
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Shock Absorber (Part No.65101)

Magnum Shock Absorber

from

$109.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Front Suspension Shock Absorber (Part No.65159)

Magnum Front Suspension Shock Absorber

from

$117.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
See More

Upgrade your 2004 Peterbilt 385 with Top-Quality Suspension Parts

When it comes to maintaining or upgrading your 2004 Peterbilt 385, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Peterbilt or enhancing its overall performance, Suspension Parts are key to keeping your 385 functioning at its best. At Advance Auto Parts, we offer a wide selection of 27 Suspension Parts for the 2004 Peterbilt 385, designed to meet your needs without breaking the bank.

Affordable Prices and Wide Selection

Shopping for Suspension Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Suspension Parts for your 2004 Peterbilt 385 at great prices. Our Suspension Parts inventory for this model ranges from just $47.49 to $134.99, with an average price of $98.86. Our 27 Suspension Parts in stock come from 2 trusted brands, so you’re sure to find the right part for your 2004 Peterbilt 385 without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Suspension Part upgrades. Explore related part types like Batteries and Chargers, Fluids and Chemicals and more to make sure your 2004 Peterbilt 385 is always ready to roll. We’re committed to providing you with everything you need to keep your 385 in top shape, all in one place. Start shopping confidently below for your 2004 Peterbilt 385!

Best-Selling Shocks and Struts for 2004 Peterbilt 385s

Enhance the driving experience in your Peterbilt with 27 quality Shocks and Strut components, starting at $47.49.

Monroe – Magnum Shock Absorber (Part No.65528)

Magnum Shock Absorber

from

$134.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Front Suspension Shock Absorber (Part No.65159)

Magnum Front Suspension Shock Absorber

from

$117.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
See More

Monroe – Magnum Shock Absorber (Part No.65101)

Magnum Shock Absorber

from

$109.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Rear Suspension Shock Absorber (Part No.65402)

Magnum Rear Suspension Shock Absorber

from

$125.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Tag Axle; Front; Rear Suspension Shock Absorber (Part No.66636)

Magnum Tag Axle; Front; Rear Suspension Shock Absorber

from

$77.99
The Monroe Magnum shock absorber for class 3-6 vehicles is gas-charged for quicker response and a stable, more comfortable ride. Designed to handle the demands of high mileage and severe use vehicles, replace worn-out units with Magnum shocks to help reduce excessive vibration.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES   — Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • FOR HARDWORKING COMMERCIAL VEHICLES áá– Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2-in. or 2-1/4-in. reserve tube holds more fluid to improve performance (when required)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (on most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration, and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
See More

Monroe – Magnum Rear; Front Suspension Shock Absorber (Part No.65411)

Magnum Rear; Front Suspension Shock Absorber

from

$121.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Rear Suspension Shock Absorber (Part No.65495)

Magnum Rear Suspension Shock Absorber

from

$132.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Shock Absorber (Part No.65434)

Magnum Shock Absorber

from

$123.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
See More

Monroe – Magnum Shock Absorber (Part No.74409)

Magnum Shock Absorber

from

$118.99
Tough Monroe® Magnum shock absorbers for transit buses deliver a firm, controlled ride for greater stability and increased driver comfort. Designed to meet or exceed demanding OE manufacturer specifications

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Loop welding technique Resistance weld with additional 360-degree weld to provide up to 15,000 lbs. (6,804 kg) tensile strength for maximum durability – when required
  • 1-3/4-inch (44.6 mm) Bore Larger bore gives accessibility to finer tune the valving by allowing more hydraulic fluid to dissipate heat for better vehicle control
  • 2-3/4-inch (69.85 mm) Reserve Tube More fluid for more consistent performance – when required
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • All weather fluid Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • 10-stage valving Reacts to wide range of driving conditions – on most applications
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Shock Absorber (Part No.65404)

Magnum Shock Absorber

from

$112.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Monroe – Magnum Rear Suspension Shock Absorber (Part No.65400)

Magnum Rear Suspension Shock Absorber

from

$112.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
See More

Monroe – Magnum Shock Absorber (Part No.65113)

Magnum Shock Absorber

from

$109.99
The Monroe Magnum shock absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy truck suspension systems.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES — Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2-3/8-in. reserve tube holds more fluid to improve performance (most applications)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/4-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1990-1996 Peterbilt 375 (Part No.HD1215-0061)

Heavy-Duty Shock Absorber - 1990-1996 Peterbilt 375

from

$91.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1989-1994 Ford F600 (Part No.HD1215-0078)

Heavy-Duty Shock Absorber - 1989-1994 Ford F600

from

$88.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 2013-2014 Kenworth T680 (Part No.HD1215-0034)

Heavy-Duty Shock Absorber - 2013-2014 Kenworth T680

from

$88.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1995-2002 Peterbilt 330 (Part No.HD1215-0037)

Heavy-Duty Shock Absorber - 1995-2002 Peterbilt 330

from

$86.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Rear Suspension Shock Absorber (Part No.66424)

Magnum Rear Suspension Shock Absorber

from

$84.99
The Monroe Magnum shock absorber for class 3-6 vehicles is gas-charged for quicker response and a stable, more comfortable ride. Designed to handle the demands of high mileage and severe use vehicles, replace worn-out units with Magnum shocks to help reduce excessive vibration.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES   — Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • FOR HARDWORKING COMMERCIAL VEHICLES áá– Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2-in. or 2-1/4-in. reserve tube holds more fluid to improve performance (when required)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (on most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration, and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1986-2007 Kenworth T600A (Part No.HD1215-0085)

Heavy-Duty Shock Absorber - 1986-2007 Kenworth T600A

from

$83.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – GAS-MAGNUM 60 Shock Absorber (Part No.66429)

GAS-MAGNUM 60 Shock Absorber

from

$82.99
The Monroe Gas-Magnum 60 shock absorber is gas-charged for quicker response and a stable, more comfortable ride. Replacing worn-out units with hard-working Gas-Magnum 60 shocks can help reduce excessive vibration. The result can be better tire life, less downtime and a lower cost per mile.

Product Features:
  • Multi-lip fluid seal designed for smooth performance, long life and reduced friction
  • Nitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration.
  • 2″ or 2-3/8″ (50.8 mm or 60.3 mm) reserve tube (where required)
  • 1-3/8 inch (34.9 mm) bore (On most applications)
  • 5/8-inch (15.9 mm) diameter piston rod (On most applications)
  • Resistance and arc-welded mounts, provide 9,500 lbs. (4,309 kg) of tensile strength for maximum durability (on most applications)
  • Patented unique hydraulic rebound lockout (when required)
  • Special “Self-lubricating” fluid seal designed to retain gas without excessive wear or friction.
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Bulldog HD – Heavy-Duty Shock Absorber – 2019-2020 Kenworth W990 (Part No.HD1215-0056)

Heavy-Duty Shock Absorber - 2019-2020 Kenworth W990

from

$81.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Monroe – Magnum Shock Absorber (Part No.66428)

Magnum Shock Absorber

from

$81.99
The Monroe Magnum shock absorber for class 3-6 vehicles is gas-charged for quicker response and a stable, more comfortable ride. Designed to handle the demands of high mileage and severe use vehicles, replace worn-out units with Magnum shocks to help reduce excessive vibration.

Product Features:
  • FOR HARDWORKING COMMERCIAL VEHICLES   — Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • FOR HARDWORKING COMMERCIAL VEHICLES áá– Designed to handle the demands of high mileage and severe use class 3-6 trucks and buses
  • CONSISTENT RIDE — All-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while 2-in. or 2-1/4-in. reserve tube holds more fluid to improve performance (when required)
  • EXCEPTIONAL HANDLING — 10-Stage valving, tuned specifically to each vehicle, adjusts to road extremes while the larger 1-3/8-in. bore provides more efficient damping control to provide consistency and a smooth ride (most applications)
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360░ for durability
  • STRONG AND DURABLE — Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality; arc welds up to 360° for durability
  • BUILT TO LAST — Robust hydraulic lock-out prevents over extension of air bags, top-out of the piston and averts damage to seal assembly (on most applications)
  • LONGER SERVICE LIFE — Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life (most applications)
  • REDUCED NOISE, VIBRATION AND HARSHNESS — Delivers exceptional control and isolates impact-related noise, vibration, and harshness under most driving conditions
  • IMPROVES PERFORMANCE — Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • 10-stage valving: Reacts to wide range of driving conditions – on most applications
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1986-2008 Peterbilt 357 (Part No.HD1215-0033)

Heavy-Duty Shock Absorber - 1986-2008 Peterbilt 357

from

$81.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1997-2007 Kenworth T800 FWD (Part No.HD1215-0020)

Heavy-Duty Shock Absorber - 1997-2007 Kenworth T800 FWD

from

$77.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1987-2018 Peterbilt 320 (Part No.HD1215-0032)

Heavy-Duty Shock Absorber - 1987-2018 Peterbilt 320

from

$72.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1995-2005 Peterbilt 300 (Part No.HD1214-0612)

Heavy-Duty Shock Absorber - 1995-2005 Peterbilt 300

from

$67.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1981-2016 Kenworth C500 (Part No.HD1214-0609)

Heavy-Duty Shock Absorber - 1981-2016 Kenworth C500

from

$62.99
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

Bulldog HD – Heavy-Duty Shock Absorber – 1975-1978 GMC G35 (Part No.HD1214-0534)

Heavy-Duty Shock Absorber - 1975-1978 GMC G35

from

$47.49
Bulldog HD commercial Heavy Duty shock absorbers are designed with the best materials and innovative design techniques for lasting quality and performance! Best Technology. Best Performance. Ultra Premium HD Shocks.

Product Features:
  • Robotic 360 Degree Welds; Highest Weld Strength in the Industry
  • Propriety Value Design for long lasting compression and rebound performance
  • Brushing rubber formulation with lowest levels of filler
  • OE Enos Synthetic to perform from -40 Deg. F to 340 Deg. F
  • Double lip seal design to reduce excessive misting and extend damping life cycle
See More

FAQs for 2004 Peterbilt 385 Suspension Parts

Which Suspension Parts are best-sellers for 2004 Peterbilt 385s?

Out of 27 Suspension Parts that fit 2004 Peterbilt 385s, the following parts are the top sellers:

What’s the price range for 2004 Peterbilt 385 Suspension Parts?

Suspension Part prices for the 2004 Peterbilt 385 start at $47.49 and go up to $134.99 for the most premium parts.

What’s the average price of a Suspension Part for a 2004 Peterbilt 385?

The average price for Suspension Parts for the 2004 Peterbilt 385 is $98.86. Keep in mind the variety of part types within our Suspension Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Suspension Parts for other Peterbilt 385 model years?

Yes, we currently carry Suspension Parts for 13 model years of Peterbilt 385s between 1995 and 2008. Suspension Parts are bought most frequently for the following model years: 2007, 2006, 2005, 2003, 2002, 2001, 2000, 1999, and 1998.

What are the cheapest Suspension Parts for my 2004 Peterbilt 385?

The cheapest 2004 Peterbilt 385 Suspension Parts we carry in stock are:

What types of Suspension Parts do you sell for my 2004 Peterbilt 385?

As of 2/5/25, these are some of the most in-demand types of Suspension Parts for a 2004 Peterbilt 385:

Can I get help with 2004 Peterbilt 385 Suspension Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Peterbilt Suspension Parts and more.

What is your return policy for Peterbilt 385 Suspension Parts?

Advance Auto Parts keeps returns simple. For new Peterbilt 385 Suspension Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.