2004.5-2005 GM Duramax 6.6L LLY Fuel Filter
Prevent any contaminants from ruining your truck's engine with the addition of an aftermarket fuel filter! These direct replacement units remove your restrictive factory filter and attach directly in place for a quick and easy performance upgrade that you'll be sure to love. Experience improved fuel pressure and better flow to the engine with any of the premium fuel filter we offer here at Alligator Performance! GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.