Injectors - GM 6.6L Duramax LLY
Stock or High Performance injectors for 2004 - 2005 Chevy GMC 6.6L LLY Duramax 2500 3500.
We carry stock replacement and high performance injectors for the 2004 - 2005 Chevy GMC Duramax 6.6L LLY engine. Signs of worn injectors may include excessive smoke, rough idle or a light "miss", low power and poor fuel economy. LLY owners can extend the life of their injectors by using Stanadyne Performance Formula with every tank of fuel. Clean fuel is very important, so changing your fuel filters at the recommended intervals is critical. Adding an aftermarket fuel filter or a FASS will also extend the life of your injectors.
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Identify which Duramax engine you have by the 8th digit
in the VIN #
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LB7 - 1
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LLY - 2
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LBZ - D
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LMM - 6
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LML - 8
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