L5P Duramax Parts

We have bundled everything you need in a leveling kit for your GM 2500/3500 with high quality Cognito components. There is no guesswork, and you SA...

The Cognito SM Series LDG Traction Bar Kit features a heavy-duty boxed sheet metal construction with adjustability that enables you to control unwa...

The Cognito 1” Drop Shackle for GM 2500/3500 trucks lowers the rear ride height by approximately 1”, allowing you to dial in your truck’s rake to m...

The Cognito SM Series LDG Traction Bar Kit features a heavy-duty boxed sheet metal construction with adjustability that enables you to control unwa...

We've bundled everything you need in a leveling kit for your 2020-2022 Silverado/Sierra 2500/3500 2WD/4WD with high quality Cognito components. The...

Cognito 20-24 Chevy/GMC Silverado/Sierra 2500/3500 HD 2WD/4WD 3in Standard Leveling Lift KitThis Part Fits: Year Make Model Submodel 2020-2025 C...

The Cognito 2-Inch Economy Leveling Kit offers a cost-effective solution to improve vehicle appearance. Made in the USA.This Part Fits: Year Make ...

The Cognito Front Fender Liner Tie Back Kit makes fitting larger tires and offset wheels easier on your 20-23 Silverado/Sierra 2500/3500 trucks.For...

Cognito Torsion Bar Keys levels the front with the rear of the truck. Their forged construction makes them practically indestructible and they bolt...

The Cognito Tubular Series LDG Traction Bar Kit features adjustability that enables you to control unwanted axle wrap without restricting suspensio...

The Cognito 2 Inch Economy Leveling Kit offers a cost-effective solution to improve vehicle appearance. The included front shock spacers allow for ...

Give your Cognito traction bar system a clean, customized finishing touch with the Cognito Enhancement Plate Kit. Designed to complement select Cog...

Kit includes (1) 1 Inch FK Uniball and (1) Retaining Ring

Upgrade your truck’s rear suspension with the Cognito 1.0-Inch Block and U-Bolt Kit, designed to provide a clean, functional lift while maintaining...

The Cognito SM Series Upper Control Arms are designed to provide improved performance, style, and function for stock, leveled, and lifted applicati...

The Cognito Comfort Ride Torsion Bars feature a reduced rate which offers a superior ride in comparison to the stiff OEM torsion bars.Built to OEM ...

Cognito CV Front Driveline Kit For 4-6 Inch Lift-Duramax/ 4-12 Inch Lift-Gas On 17-19 Silverado/Sierra 2500/3500. This direct bolt in driveline fea...

In 2019 GM upsized the front driveline front u-joint to 1330 series in the 2500HD/3500HD trucks. This size carried on through 2023. In 2024 GM has ...

Front and rear Cognito 2.0 IFP aluminum shocks, rebuildable and tuned specifically for these trucks providing on-road comfort and control with the ...

Cognito CV Front Driveline Kit For 7-9 Inch 10-12 Inch Lifts On 17-19 Silverado/Sierra 2500HD/3500HD Duramax. This direct bolt in driveline feature...

Fits as stock replacement where an upgrade is desired to provide better style and function. The boxed sheet metal arms are powder coated semi-gloss...

The 2500HD AT4X and ZR2 already comes 'leveled' from the factory via torsion bar and torsion key clocking. These models are coming the same size in...

Cognito CV Front Driveline Kit For 4-Inch 7-Inch 10-Inch Lifts On 2020-2022 Silverado/Sierra 2500HD/3500HD Duramax. This direct bolt in driveline f...

In stock form this truck has only 2" of droop travel in the front suspension, not enough to provide a good ride quality for anything more than goin...