1998 Peterbilt 378 Rear Shock and Struts
Enhance and Protect Your 1998 Peterbilt 378 with Quality Rear Shock and Struts
Maintaining the performance of your 1998 Peterbilt 378 starts with choosing the right parts, and a high-quality Rear Shock and Struts helps ensure a reliable and efficient vehicle. At Advance Auto Parts, we offer Rear Shock and Struts specifically for the 1998 Peterbilt 378, ensuring a perfect fit and lasting durability. Choosing to shop with Advance Auto Parts means you’re making a smart decision to prioritize both quality and reliability for your vehicle.
Affordable and Reliable Rear Shock and Struts for Every Budget
Finding a Rear Shock and Struts that combines quality with affordability is easy at Advance Auto Parts. With prices starting as low as $67.99 and an average price of $101.31, you can choose one that fits your budget while delivering the quality you expect. Our Rear Shock and Struts are competitively priced, ranging from $67.99 to $137.99, so you get value without compromising on strength or reliability.
Trusted Brands and Top-Rated Options
With 19 Rear Shock and Struts from 2 trusted brands in stock, Advance Auto Parts has you covered. Our Rear Shock and Struts for the 1998 Peterbilt 378 have earned reviews from over 9 customers, with an average 5 stars rating across the board. Popular options include Magnum Rear Suspension Shock Absorbers, Magnum Tag Axle; Front; Rear Suspension Shock Absorbers, and Magnum Rear; Front Suspension Shock Absorbers, starting at $77.99. Our selection includes highly regarded brands such as Monroe and Bulldog HD, and more, offering you top-notch reliability. For example, we have 12 Monroe Rear Shock and Struts starting at $77.99 with an average rating of 4 stars, 7 Bulldog HD options from $67.99 with a 0 stars rating.
Explore Related Parts for a Complete Solution
To further enhance your 1998 Peterbilt 378, don’t miss our related parts categories, including Front Shock and Struts. These additions will round out your repair or upgrade project and ensure your vehicle is ready for any adventure.
Rear Shock and Struts for Your 1998 Peterbilt 378
Monroe – Magnum Front; Rear Suspension Shock Absorber (Part No.65463)
from
$104.99
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:
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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
Monroe – Magnum Rear Suspension Shock Absorber (Part No.65402)
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:
See More
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
Monroe – Magnum Tag Axle; Front; Rear Suspension Shock Absorber (Part No.66636)
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:
See More
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
Monroe – Magnum Rear; Front Suspension Shock Absorber (Part No.65411)
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:
See More
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
Monroe – Magnum Shock Absorber (Part No.74406)
from
$137.99
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:
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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
Monroe – Magnum Rear Suspension Shock Absorber (Part No.65495)
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:
See More
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
Monroe – Magnum Shock Absorber (Part No.65444)
from
$127.99
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:
See More
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
Monroe – Magnum Shock Absorber (Part No.65401)
from
$115.99
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:
See More
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
Monroe – Magnum Rear Suspension Shock Absorber (Part No.65400)
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:
See More
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
Monroe – Magnum Shock Absorber (Part No.65433)
from
$104.99
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:
See More
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
Bulldog HD – Heavy-Duty Shock Absorber – 1994-1997 Ford F700 (Part No.HD1215-0043)
from
$94.99
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:
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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
Bulldog HD – Heavy-Duty Shock Absorber – 2002-2002 Freightliner XC (Part No.HD1215-0062)
from
$90.99
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:
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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
Bulldog HD – Heavy-Duty Shock Absorber – 2013-2014 Kenworth T680 (Part No.HD1215-0034)
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:
See More
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
Bulldog HD – Heavy-Duty Shock Absorber – 1995-2002 Peterbilt 330 (Part No.HD1215-0037)
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:
See More
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
Bulldog HD – Heavy-Duty Shock Absorber – 2005-2010 Peterbilt 335 (Part No.HD1215-0082)
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:
See More
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
Monroe – GAS-MAGNUM 60 Shock Absorber (Part No.66429)
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:
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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.
Monroe – Magnum Shock Absorber (Part No.66428)
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:
See More
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
Bulldog HD – Heavy-Duty Shock Absorber – 1986-2008 Peterbilt 357 (Part No.HD1215-0033)
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:
See More
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
Bulldog HD – Heavy-Duty Shock Absorber – 1995-2005 Peterbilt 300 (Part No.HD1214-0612)
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:
See More
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
FAQs for 1998 Peterbilt 378 Rear Shock and Struts
Which Rear Shock and Struts are the top sellers for the 1998 Peterbilt 378?
Out of 19 Rear Shock and Struts that fit 1998 Peterbilt 378s, the following parts are the top sellers:
from
$77.99
This product is not rated
Magnum Tag Axle; Front; Rear Suspension Shock Absorber
Rear Shock and Struts
from
$121.99
This product is not rated
Magnum Rear; Front Suspension Shock Absorber
Rear Shock and Struts
How can I make sure that a part will be compatible with my 1998 Peterbilt 378?
Our Peterbilt 378 aftermarket and OEM parts are designed specifically for the 1998 model. You can always find your specific fitment and compatibility for your 1998 Peterbilt on an individual product page.
What is the price range for 1998 Peterbilt 378 Rear Shock and Struts?
The range of prices of Rear Shock and Struts for the 1998 Peterbilt 378 goes from $67.99 up to $137.99 for the most premium parts.
What is the average price of 1998 Peterbilt 378 Rear Shock and Struts?
1998 Peterbilt 378 Rear Shock and Struts average $101.31 for our selection of OEM and aftermarket parts. Keep in mind the variety of brands we offer, such as Monroe Bulldog HD, and more, so you are likely to find a wide range of prices across a variety of brands and products.
Does Advance Auto Parts sell Rear Shock and Struts for other Peterbilt 378 model years?
Can I get help with 1998 Peterbilt 378 Rear Shock and Struts orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Peterbilt Rear Shock and Struts and more.
What is your return policy for Peterbilt 378 Rear Shock and Struts?
Advance Auto Parts keeps returns simple. For new Peterbilt 378 Rear Shock and Struts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
Rear Shock and Struts For Other Peterbilt 378 Model Years
Looking for parts for a different model year of the Peterbilt 378? Below, you’ll find links to Rear Shock and Struts for a range of model years, from 1988 models all the way up to 2007. At Advance Auto Parts, we carry high-quality OEM and aftermarket auto parts for popular years like 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and more, ensuring you have access to the best options for your specific needs. Choosing a Rear Shock and Struts from Advance Auto Parts means investing in top-tier parts that will keep your Peterbilt 378 running at its best, no matter the year.
