Need a specific part for maintaining your vehicle? Shop by brand and see our inventory of auto parts for diesel engines. You can also shop by vehicle and select your truck's year, make, and model to see compatible engine accessories. Merchant Automotive is the largest Duramax parts supplier in the world.
Duramax & Allison Experts In Your Inbox
EXCLUSIVE SAVINGS AND HELPFUL ARTICLES!
Join our tribe of Duramax and Allison transmission fans and get our latest deals, articles, and resources sent straight to your inbox!