Billet Crankshaft Pulley for 6.5 diesels w/serp belt systems (6 groove).
Please note the new design pulley is now blue in color and has a solid front face.
This pulley is 2.5 pounds lighter and made from a billet aluminum and does away with the problems the factory pulleys. It is anodized to protect the surface.Will fit all 6.5 diesels with the serp belt system with 6 groove belt as found on all civilian Hummer.
This is a lifetime part you will not need to change ever again.
The stock pulleys are know to crack/separate and fail quite often. The stock pulley after it has failed can sound like a rod knock. Be sure to inspect you old pulley every oil change if you see any sign of the rubber cracking or dry rot or if you can move the outside ring independent of the hub, if so replace it soon!