Replace you're damaged or torn 6.6 Liter LB7 Duramax injector seals with the genuine 94051259 GM replacement parts. The use of OEM LB7 6.6L Duramax Injector O-Rings will ensure a good seal on each diesel fuel injector. This Brand New GM part is a Set Of Two Injector Cup O-Ring Seals for each Duramax Fuel injector. To do a complete service, you will need to purchase eight of these injector seal kits.
This is a Brand New GM Part designed for the replacement of damaged injector cup o-rings. Installation of new Injector O-Rings will help prevent coolant contamination of the engine oil. Damaged injector seals will allow cross contamination. Replacement Of the Fuel Injector Cups and Seal Kit is recommended every time you servie the fuel injectors.