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Air Filters
Air Intakes
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Cooling System
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Electronics
Engine
Engine Parts
Exhaust
Exhaust Brakes
Fabrication Components
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Injection Pumps
Injectors & Related Items
Intake Manifolds
Intercoolers
Lift Pumps
Programmers
Silicone Hoses
Suspension
Tools
Transmissions
Turbochargers
Water Meth Inj Kits
Thoroughbred Diesel has been your online performance headquarters since 2002. We know how to get the most performance out of your pickup truck and offer all of today's most popular diesel performance products.
Brakes
ECM
Electrical Components
Engine Components
Exterior Replacement Parts
Filters
Fuel Pumps
Gaskets & Seals
Interior Replacement Parts
Oil Pumps
Starters & Alternators
Thoroughbred Diesel offers OEM and diesel stock parts for your diesel pickup truck. At Thoroughbred Diesel, you can buy stock diesel replacement parts such as injectors, fuel pumps, ball joints, track bars, turbos, and more for your diesel truck.
Injection Pump
Injector
Turbo Charger
Batteries
Bed Covers
Bumpers
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Floor Mats and Liners
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Horns
Lighting
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Nerf Bars
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Shift Knobs
Spare Tire Carriers
Storage
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Tool Box
Truck Steps
Ventvisors
Wheels
Winches
Make heads turn with custom truck accessories from Thoroughbred Diesel.
Ball Mounts
Gooseneck & Fifth Wheel
Hitch Balls
Hitch Pins & Hitch Locks
Hitch Steps
Hitches
Loading Ramps
Shackles & Tow Hooks
Tow Brakes
Tow Mirrors
Towing Accessories
Weight Distributing Hitchs
Banners
Decals
Hats
Hoodies
License Plates
Shirts
Tank Tops
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Thoroughbred Sku #: DOR904-171 Manufacturer Sku #: 904-171
Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit
$100.95
2003 - 2012 Chevy Silverado 2500
2003 - 2012 Chevy Silverado 3500
2003 - 2012 GMC Sierra 2500
2003 - 2012 GMC Sierra 3500
Product Name: Dorman Products Valve Cover And Rocker Box Gasket Kit 2004.5-2021 GMC Silverado/Sierra 2500HD/3500HD Duramax 6.6L Manufacturer: Dorman Products Manufacturer Part #: 904-171 Thoroughbred Diesel Part #: DOR904-171