My Account
If you are already registered, please log in.
Create your account and enjoy a new shopping experience.
Create A New Account
Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov.
Merchant Automotive provides industry-leading customer service and support. Our staff of professionals has intimate knowledge in all the Duramax/Allison platforms we represent and are dedicated to 100% customer satisfaction. Merchant Automotive provides you with highly specific technical information not found anywhere else. Many of our products are custom designed and manufactured in-house to maximize the performance and reliability of your truck. The emphasis on product design and specialized manufacturing means lower pricing on products not found at other companies
Merchant Automotive
A great compliment to our heavy duty motor mounts. Keep your drive line in place. Fits Allison 2001-2010 and ZF6 2001-2006. Unique Safety Interlock DesignImpervious To...
Merchant Automotive
"P" Series Bearings are suited for stock and mild performance applications.
Merchant Automotive
Valve Guide Seal by Merchant Automotive®. Valve Guide With Seal Grove. Quantity 16 per Head / 32 per Engine.
Merchant Automotive
Transfer Case Gasket by Merchant Automotive®. Heavy duty gasket, will not rip or tear like less expensive gaskets.
Mahle
Replace the piston rings in your 2001-2010 GM 6.6L Duramax with the MAHLE 41909.020 Complete Piston Ring Set (.020). Made to factory specifications, the rings in the Complete Piston Ring Set come...
Merchant Automotive
Duramax Cast Performance Piston by Mahle®. Performance coatings include a phosphate dry lubricant (not to be confused with a thermal film coating) that is used to protect against ring...
ARP
If you're installing a set of head studs, main studs, or our new injector hold down studs for Cummins applications, then you need to pick up a bottle of ARP Ultra-Torque to make for a perfect...
Merchant Automotive
The engine oil cooler is not typically a component that goes bad but should be replaced after any catastrophic engine failure. Any time metal is pumped through the engine from internal failure, it...
Mishimoto
Mishimoto has released a performance aluminum radiator for the 2001–2005 Chevrolet/GMC 6.6L Duramax. Mishimoto performance radiators are manufactured from high-quality aircraft-grade aluminum...
Danville Performance
Danville Performance Billet 72mm Stg3 Good for 800+hp. *If choosing the polished cover option it could be up to 2 weeks depending on availability. ...
ARP
ARP tapered piston ring compressors are CNC-machined from 6061-T6 billet aluminum tube material and feature a true radius for each individual bore diameter. They're also relieved to accommodate wire...
