Fix the gauge cluster on your vehicle today with the Merchant Automotive 10194-7 Stepper Motor Set (Pack Of 7) from GAP. Are your gauges not workin...

The Merchant Automotive 10195 Transmission Rear Housing Support for your 07.5-10 GM 6.6L Duramax fits your Allison 4x4 Transmission.This support ca...

The Merchant Automotive 10196 Upper Valve Cover Bolt Kit replaces the damaged or stripped out bolts in your 2001-2004 GM 6.6L Duramax LB7. Sold in ...

The Merchant Automotive 10199 Brake Pin & Boot Kit is must have while replacing or upgrading the brakes in your 2001-2010 GM 6.6L Duramax or 20...

The Merchant Automotive 10204 Lower Valve Cover Bolt Kit for your 2001-2004 GM 6.6L Duramax is designed to replace the allen head bolts that are so...

Pick up the Merchant Automotive 10205 Complete Upper & Lower Valve Cover Bolt Set from GAP for your GM 6.6L Duramax today. This is a complete s...

The Merchant Automotive 10206 Transmission Cooler Line Repair Kit for your 01-05 GM 6.6L Duramax offers a permanent solution to a growing problem. ...

The Merchant Automotive 10207 Transmission Cooler Line Repair Kit for your 06-10 GM 6.6L Duramax offers a permanent solution to a growing problem. ...

The Merchant Automotive 10218 Deluxe Fuel Filter Head Rebuild Kit includes everything you need to rebuild and upgrade the fuel filter head your 200...

The Merchant Automotive 10219 T-Handle Torque Converter R&R Tool for your 2001-2016 GM 6.6L Duramax allows you to simply thread the T-Handles i...

The Merchant Automotive 10228 S400 Oil Line Kit for your 01-10 GM 6.6L Duramax takes the guessing the out of plumbing in your upgraded turbocharger...

Purchase the Merchant Automotive 10237 Upper Valve Cover Grommets from GAP and install them onto your GM 6.6L Duramax today. This kit features 14 u...

Grab the Merchant Automotive 10241 Fuel Pressure Regulator Install Gasket Kit from GAP for your GM 6.6L Duramax today. A common sign of a failed fu...

Get the Merchant Automotive 10245 Turbo Resonator Delete Cap from GAP for your vehicle today. Clean up under your hood by removing the bulky stock ...

The Merchant Automotive 10248 Water Pump Seal from GAP is a direct-fit replacement for the leaking seal on your 2001-2016 GM 6.6L Duramax LB7/LLY/L...

The Merchant Automotive 10263 Oil Cooler Installation Kit for your 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax includes the needed gas...

Order the Merchant Automotive 10269 Fuel Pressure Relief Valve Shim Kit from GAP for your vehicle today. The Release Valve Shim Kit increases the p...

Pick up the Merchant Automotive 10284 Weld-In Idler Support Brace from GAP for your vehicle today. Weld in gusset to strengthen the stock tabs whic...

The Merchant Automotive 10293 Left Hand Dipstick Tube for your is a great solution to tight clearance when a large turbo downpipe is used. Allows t...

Order the Merchant Automotive 10294 Transfer Case Housing Bolt Kit from GAP for your vehicle today. The original 15mm head transfer case bolts are ...

The Merchant Automotive 10298 Fuel Injector Copper Seals (8-Pack) from GAP is a direct-fit replacement for your 2004.5-2016 GM 6.6L Duramax LLY/LBZ...

Find the Merchant Automotive 10299 Fuel Injector Body Seal Set at GAP for your GM 6.6L Duramax today. This is a set of 8 injector seals designed to...

The Merchant Automotive 10304 Stainless Steel Tie Rod Sleeves for your 2011-2016 GM 6.6L Duramax increase strength and rigidity in the tie rods in ...

Purchase the Merchant Automotive 10306 Fuel Injector Cup O-Rings (Pair) from GAP for your GM 6.6L Duramax LB7 today. Replace damaged injector cup O...

Order the Merchant Automotive 10308 Fuel Injector Body Seal Kit from GAP for your GM 6.6L Duramax LMM today. This kit comes with a set of 8 injecto...

Purchase the Merchant Automotive 10316 Glow Plug/Intake Air Heater Fuse (175 AMP) from GAP for your GM 6.6L Duramax today. If your glow plugs or in...

Get the Merchant Automotive 10318 Torque Converter Housing Bolt Seal Set from GAP for your GM 6.6L Duramax LB7/LLY/LBZ/LMM/L5P today. The 10 bolts ...

Find the Merchant Automotive 10320 Master Fuel Filter Head Rebuild Kit at GAP for your vehicle today. Replacing the fuel filter head on a Duramax e...

Pick up the Merchant Automotive 10325 Transfer Case Front Output Seal Driver from GAP for your 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ. This CNC-mach...

Order the Merchant Automotive 10326 Transfer Case Rear Output Seal Driver from GAP for your GM 6.6L Duramax today. The Merchant Automotive 10327 Tr...

The Merchant Automotive 10328 Front Main Crank Seal Driver from GAP makes it easy to install the front main crank seal on your 2001-2016 GM 6.6L Du...

Purchase the Merchant Automotive 10330 Rear Main Crank Seal Driver from GAP for your vehicle today. It is critically important that you install the...

Pick up the Merchant Automotive 10332 Fuel Pressure Regulator Bolts from GAP for your GM 6.6L Duramax today. These T-25 bolts by Merchant Automotiv...

Purchase the Merchant Automotive 10345 Water Pump Gasket Kit from GAP and get high-quality gaskets and seals for the water pump on your 2001-2016 G...

The Merchant Automotive 10348 S300/S400 Oil Feed Kit for your 2001-2010 GM 6.6L Duramax is a pre-made Oil Feed line designed to fit an aftermarket ...

The Merchant Automotive 10357 Transmission Rear Housing Support for your 2011-2019 GM 6.6L Duramax can help keep your Allison four wheel drive hous...

The Merchant Automotive 10358 Fan Clutch Wrench is specially designed to fit the Fan Clutch in your 2001-2016 GM 6.6L Duramax. This Wrench is const...

Get the Merchant Automotive 10365 Transfer Case Mounting Nut Kit from GAP for your vehicle today. Here is a complete set of 6 mounting nuts for the...

The Merchant Automotive 10369 ZF6 Transmission Rear Housing Support for your 2001-2006 GM 6.6L Duramax ZF6 can keep the Rear Adapter Housing from c...

The Merchant Automotive 10370 Transfer Case Seal Driver Kit for your 01-07 GM 6.6L Duramax fits the following transfer cases: 136, 146, 246, 261, 2...

The Merchant Automotive 10371 Engine Seal Driver Kit for your 2001-2016 GM 6.6L Duramax is specially designed to correctly install the front and re...

The Merchant Automotive 10381 Transfer Case Upgrade with Drain Plugs for your 01-07 GM 6.6L Duramax is the best upgrade you can make to your GM tra...

The Merchant Automotive 10382 T-Case Upgrade with Drain Plugs & Fluid for your 01-07 GM 6.6L Duramax is the best upgrade you can make to your G...

Use the Merchant Automotive 10384 Billet Turbo Resonator Delete Plug and clean up under your hood by removing the bulky stock turbo resonator and r...

Find the Merchant Automotive 10398 Fuel Injector Seal Kit at GAP for your GM 6.6L Duramax today. This kit is an OE-style replacement kit that maint...

Order the Merchant Automotive 10399 Fuel Injector Gasket Kit from GAP for your GM 6.6L Duramax today. This kit by Merchant Automotive features LB7 ...

Grab the Merchant Automotive 10402 Speed Sensor Connector from GAP for your GM 6.6L Duramax today. The Merchant Automotive transfer case and Alliso...

The Merchant Automotive 10406 Lower Radiator Pipe O-Rings (Radiator Side) will replace the torn radiator O-rings in your 2006-2010 GM 6.6L Duramax....