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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
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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
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Make heads turn with custom truck accessories from Thoroughbred Diesel.
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Thoroughbred Sku #: DOR904-394 Manufacturer Sku #: 904-394
Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit
$199.95
2012 - 2016 Chevy Silverado 2500
2012 - 2016 Chevy Silverado 3500
2012 - 2016 GMC Sierra 2500
2012 - 2016 GMC Sierra 3500
Product Name: Dorman Products Def Heater 2012-2016 GMC Silverado/Sierra 2500HD/3500HD Duramax 6.6L Manufacturer: Dorman Products Manufacturer Part #: 904-394 Thoroughbred Diesel Part #: DOR904-394
The factory DEF heater on certain vehicles often fails from fluid intrusion. This Dorman OE FIX solution modifies the OEM design to address this failure point and increase reliability.