Merchant Automotive

The Merchant Automotive 10520 Deluxe Injector Removal Tool greatly eases the removal of the injectors in your 2001-2004 GM 6.6L Duramax LB7. Over time and miles the injectors become heavily...

Upgrade the water pump in your 2001-2005 GM 6.6L Duramax LB7 & LLY with the Merchant Automotive 10540 Water Pump. Merchant Automotive modifies the factory pump by TIG welding the impeller...

Upgrade the water pump in your 2001-2005 GM 6.6L Duramax LB7 & LLY with the Merchant Automotive 10541 Water Pump Kit With Cover. Merchant Automotive modifies the factory pump by TIG welding...

Replace the water pump in your 2006-2016 GM 6.6L Duramax with the Merchant Automotive 10543 Water Pump Kit With Cover. This kit includes the flywheel lock, gaskets, and o-rings needed for...

The Merchant Automotive 10690 Deep Filter Lock keeps the Allison deep filter "Locked" in place on your 2001-2017 GM 6.6L Duramax. Using factory bolts, this specially designed lock secures your...

  Upgrade the Transfer Case in your 2001-2007 GM 6.6L Duramax and fix the dreaded "Pump Rub" issue with the Merchant Automotive 10772 Transfer Case Pump Upgrade Combo Kit. This kit is...

The Merchant Automotive 25900 Rear Transfer Case Housing is a new rear housing for your 2001-2007 GM 6.6L Duramax Transfer Case. This housing does not include drain and fill plugs or a rear...

The Merchant Automotive 3-1129G Polyurethane Transmission Mount for your 01-10 GM 6.6L Duramax is built with a durable polyurethane design that will help keep your driveline in place. The...

The Merchant Automotive 331304A Transfer Case Gasket for your 2001-2007 GM 6.6L Duramax is a high quality, replacement gasket that goes between the Allison rear housing adapter, and the...

The Merchant Automotive 37000 Quick Disconnect Tool Kit is extremely useful to have around the shop. This kit comes as a set of six tools which disconnect the spring lock couplings on the Ford...