LML Duramax Parts

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 ...

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...

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 ...

These end links are also a little longer than OE recommended lengths to allow clearance for our Larger Diameter tie-rod upgrade. Used as a Heavy-Du...

These end links are also a little longer than recommended lengths to allow clearance for our Larger Diameter tie-rod upgrade. Used as a Heavy-Duty ...

These end links are also a little longer than recommended lengths to allow clearance for our Larger Diameter tie-rod upgrade. Used as a Heavy-Duty ...

The Cognito Alloy Series Tie Rod kit is a Heavy-Duty stock replacement upgrade where the inner joint incorporates an oversized alloy ball and socke...

Also Converts The Stock Style Inner Tie Rod Joint From A Ball And Socket Axial Loaded Joint To A Radial Loaded Joint Which Is Significantly Stronge...

These end links are also a little longer than recommended lengths to allow clearance for our Larger Diameter tie rod upgrade. Used as a Heavy-Duty ...

GM Heavy Duty trucks are known for their inherent steering problems, and Cognito is known for providing the industry leading solution to these ...

This billet C2 hub addresses early failures of the Allison transmission C-2 clutch hub in high torque and high horsepower applications. Features: ...

2011-2016 Sierra/Silverado 2500HD/3500HD Allison Firepunk F2 Transmission Package Features: Great For Mildly Modified Trucks Up To 900HP 2-Year Un...

2011-2016 Sierra/Silverado 2500HD/3500HD Allison Firepunk F1 Transmission Package Features: Great For Mildly Modified Trucks Up To 750HP 2-Year Un...