NOT FOR 2004-2006 engines.
A $50.00 core deposit will be added to each injector, which will be refunded upon return of your complete and rebuildable core injector.
All cores must be fully assembled or they will not be accepted.
Always install new injectors with new lower seal rings and new retaining screws. Failure to do so will cause injector leaks and further costly repairs, SEE BELOW: