Mack U Front Shock and Struts

Your Mack U will be happy to know that the search for the right Front Shock and Struts you’ve been looking for is over! Advance Auto Parts has 4 different Front Shock and Struts for your vehicle, ready for shipping or in-store pick up. The best part is, our Mack U Front Shock and Struts start from as little as $80.99.

When it comes to your Mack U, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Front Shock and Struts brands so you can shop with complete confidence. Some of our top Front Shock and Struts brands are Monroe and Bulldog HD. We’re sure you will get the right product to keep that U running for a long time.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Front Shock and Struts for your U, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 15 Mack Front Shock and Struts

Monroe – Magnum Shock Absorber (Part No.65411)

Magnum Shock Absorber

from

$121.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More
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Monroe – Magnum Shock Absorber (Part No.65485)

Magnum Shock Absorber

from

$129.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More
View Product

Monroe – Magnum Shock Absorber (Part No.65431)

Magnum Shock Absorber

from

$123.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More
View Product

Monroe – Magnum Shock Absorber (Part No.65110)

Magnum Shock Absorber

from

$119.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More
View Product

Monroe – Magnum Shock Absorber (Part No.65497)

Magnum Shock Absorber

from

$112.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More
View Product

Monroe – Magnum Shock Absorber (Part No.65494)

Magnum Shock Absorber

from

$111.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More
View Product

Monroe – Magnum Shock Absorber (Part No.65146)

Magnum Shock Absorber

from

$109.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 10-stage valving Reacts to wide range of driving conditions – on most applications
  • Single-lip, low-friction oil seal
See More
View Product

Monroe – Magnum Shock Absorber (Part No.65160)

Magnum Shock Absorber

from

$107.99
The Monroe® Magnum shock absorber for Class 6-8 Vehicles is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Its nitrogen gas charge provides the fast response essential for today’s heavy truck suspe

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – when required
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – 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
  • 2-3/8 inch (60.3 mm) reserve tube More fluid for more consistent performance – on most applications
  • 1-3/4-inch (44.6 mm) bore Large bore than most shocks to provide more consistent control
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
  • Single-lip, low-friction oil seal
See More
View Product

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
View Product

Bulldog HD – Heavy-Duty Shock Absorber – 1986-1990 Ford B700 (Part No.HD1215-0107)

Heavy-Duty Shock Absorber - 1986-1990 Ford B700

from

$84.99
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
View Product

Monroe – Magnum Shock Absorber (Part No.66886)

Magnum Shock Absorber

from

$80.99
The Monroe® Magnum shock absorber for class 3-6 Vehicles is gas-charged for quicker response and a stable, more comfortable ride. Replacing worn-out units with hard-working Magnum shocks can help reduce excessive vibration. The result can be better tire l

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – on most applications
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – on most applications
  • Loop welding technique Resistance weld with additional 360-degree weld provide up to 13,100 lbs. (6,395 kg) tensile strength for maximum durability – when required
  • 2-inch (50.8 mm) or 2-1/4-inch (57.2 mm) reserve tube More fluid for more consistent performance – when required
  • 1-3/8-inch (35 mm) bore Larger bore than most shocks to provide more efficient and consistent control – on most applications
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 10-stage valving Reacts to wide range of driving conditions – on most applications
See More
View Product

Bulldog HD – Heavy-Duty Shock Absorber – 2018-2020 Mack Anthem (Part No.HD1215-0074)

Heavy-Duty Shock Absorber - 2018-2020 Mack Anthem

from

$76.99
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
View Product

Bulldog HD – Heavy-Duty Shock Absorber – 2005-2010 Hino 145 (Part No.HD1215-0071)

Heavy-Duty Shock Absorber - 2005-2010 Hino 145

from

$75.99
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
View Product

Monroe – Magnum Shock Absorber (Part No.66719)

Magnum Shock Absorber

from

$74.99
The Monroe® Magnum shock absorber for class 3-6 Vehicles is gas-charged for quicker response and a stable, more comfortable ride. Replacing worn-out units with hard-working Magnum shocks can help reduce excessive vibration. The result can be better tire l

Product Features:
  • Robust hydraulic lock-out Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assembly – on most applications
  • PTFE coated bearing Reduces friction during operation between the rod and rod guide, improving durability – on most applications
  • Tenneco shouldered bushings Shouldered bushing and bonded bushing with sleeve designs prevent (bushing walkout) for improved quality and durability – on most applications
  • Nitrogen gas-charged For improved ride and handling, helps maintain tire to road contact by reducing aeration – on most applications
  • Loop welding technique Resistance weld with additional 360-degree weld provide up to 13,100 lbs. (6,395 kg) tensile strength for maximum durability – when required
  • 2-inch (50.8 mm) or 2-1/4-inch (57.2 mm) reserve tube More fluid for more consistent performance – when required
  • 1-3/8-inch (35 mm) bore Larger bore than most shocks to provide more efficient and consistent control – on most applications
  • .05-inch Pressure tube withstanding pressure of 9KPSI
  • 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
  • All weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction
See More
View Product

Bulldog HD – Heavy-Duty Shock Absorber – 1998-2009 Freightliner MB Line (Part No.HD1214-0528)

Heavy-Duty Shock Absorber - 1998-2009 Freightliner MB Line

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
View Product

FAQs for Mack U Front Shock and Struts

What are the most popular Front Shock and Struts for the Mack U?

With 2 brands you can trust, our most popular Front Shock and Struts for the Mack U are:
Magnum Shock Absorber
from $121.99
This product is not rated
Magnum Shock Absorber
Front Shock and Struts
Magnum Shock Absorber
from $80.99
This product is not rated
Magnum Shock Absorber
Front Shock and Struts
Heavy-Duty Shock Absorber - 1989-1994 Ford F600
from $88.99
This product is not rated
Heavy-Duty Shock Absorber – 1989-1994 Ford F600
Front Shock and Struts