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2011-2016 GM 2500/3500 Engine Parts

137 products
Regular price $429.00
Sale price $429.00
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OEM replacements for left and right side boost tubes with silicone couplers. Up to 105% greater flow area compared to stock. Better flowing intercooler tubes result in less boost pressure loss allo...
Regular price $54.99
Sale price $54.99
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Contains our proprietary FR3 Nano Technology to provide the absolute best level of protection to your diesel engine. The FR3 Nano Technology infusion provides protection, longevity, and performance...
Regular price $429.00
Sale price $429.00
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Outflows stock and competitors up to 35 Percent Reduces exhaust gas temps (EGTs) Exclusive 5 inch bellows prevents component damage Cooler temps Cleaner-running engine Oiled or Dry Air Filter Eleme...
Regular price $524.99
Sale price $524.99
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These are a durable replacement for your factory head bolts. If you're looking to add little to no horsepower, these are the most cost effective option.  FEATURES Tensile Strength - 180,000 to 220...
Regular price $53.65
Sale price $53.65
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Our replacement fan extension harness for the 2011-2016 LML 6.6L Duramax allows you to repair a broken or damaged harness without needing to replace the entire fan and clutch assembly.  This harnes...
Regular price $20.59
Sale price $20.59
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DieselRX 2006-2016 GM 6.6 Duramax Glow Plugs