Duramax Parts

Fits: 12 vehicle models, including 2001 to 2025 Chevrolet Silverado 2500 HD; 2001 to 2025 GMC Sierra 2500 HD; 2007 to 2025 Chevrolet Silverado 3500...

For model years 2011–2014 and most of 2015, GM included OEM provisions for a steering stabilizer, requiring two mounting points: one on the right s...

Fits as stock replacement or leveled and lifted applications where an upgrade is desired to provide better performance, style, and function.The Cog...

Looseness or Steering Play in some vehicle steering systems can often be attributed to a component known as a bell crank or idler, which supports t...

Pitman and Idler arms have been an inherent wear problem within the steering systems of Chevy and GMC trucks and SUVs for decades.The Cognito PISK ...

The Cognito Enhancement Plate Kit is made of 1/16 Inch stainless steel plates to show off your Cognito performance upgrade parts. These plates are ...

This kit adds critical reinforcement to the idler support area of the frame, helping reduce flex and wear under load. Made from 1/4-inch plate stee...

The Cognito SM Series heavy-duty (boxed Sheet Metal) construction and signature design, deliver both optimum performance and unique looks that will...

This control arm kit is a 'Builders Kit' meaning the control arms are raw and un-assembled so a builder can custom powder coat the arms and then as...

We've bundled everything you need in a leveling kit for your 11-19 Silverado/Sierra 2500/3500 2WD/4WD with high quality Cognito components. There i...

It will add 1 Inch to the length of the front shocks for leveling applications where Cognito upper control arms and OE shocks are used.This extende...

It will add .5 Inch to the length of the front shocks for leveling applications where the OE upper control arm and shock is used.This extender kit ...

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...

Each Cognito billet control arm is precision-machined from high-quality 6061 aluminum and finished in durable black anodize, resulting in a lightwe...

This control arm kit is a 'Builders Kit' meaning the control arms are raw and un-assembled so a builder can custom powder coat the arms and then as...

Fits as stock replacement or leveled and lifted applications where an upgrade is desired to provide better performance, style, and function.The box...