APPLICATION -- For 2001-2013 6.6L Chevy GMC Duramax LB7 LLY LBZ LMM LML Fuel Filter Primer. For Buick, For Cadillac, For Chevrolet, For GMC, For Hummer, For Saturn, For Pontiac.

FUNCTION -- Repair kit to reseal the hand primer and drain plug , and the heater wire.

BENEFITS -- Easy to rebuild. Save money & energy. No need to replace the whole housing.

ADVANTAGE -- Replace the failed seal instead of the entire fuel filter housing assembly. Prevents air from entering the fuel system.

TOP QUALITY -- Bleeder Screw is manufactured from Billet Aluminum with O-ring. Anodized Red for Strength, Corrosion Protection, durability. Nitrile Plunger U-Cups With a Pruva, back-beveled lip style is designed to securely fit your fuel filter primer, preventing any potential malfunctions and extending the overall lifespan of your fuel system. Durable Viton O-rings are exceptional resistance to heat, chemicals, and extreme conditions. Provide a reliable seal.

KIT INCLUDES -- 4 x Viton-75 O-Rings includes O-ring for the hand primer seal carrier, O-rings for the fuel heater, O-ring for the bleeder screw, 2x Buna Nitrile Plunger Cups, 1 x Billet Aluminum Bleeder Screw.