FITMENT: All the 2001-2013 6.6L GM Duramax fuel filter primer,includes Bui-ck, Cadilla-c, Chev-y, GM-C,Hummer, Saturn, Pontiac.
AIR BLEEDER SCREW: Billet 6061-T6 Aluminum,Anodized Red for Strength,Corrosion Protection and Durability.
6 SEAL KITS: Prevents air from entering the fuel system.Replace just the failed seal, not the entire fuel filter housing assembly.
EASY TO REBUILD: Our pictures shows where the seals are installed.You'd better soak the seals with oil before installing.Save hundreds versus replacing with new!
PACKAGE INCLUDES: 1 x Billet 6061-T6 Aluminum Bleeder Screw,2 x Nitrile Plunger U-Cups,4 x Viton O-Rings.