ZZ Diesel Threaded Injector Cup Kit.
Screw-in style injector cups are a great long-term upgrade for your LB7 cylinder heads.
For 2001, 2002, 2003, 2004 GM 6.6L Duramax
Threaded Injector Cup Kit by ZZ Diesel. The factory injector cups are known for leaking, pitting and seizing themselves to the injectors in your LB7. If you are looking to ensure proper sealing and increased reliability the screw-in style injector cups are a great long-term upgrade for your LB7 cylinder heads.
8 Injector Cups
1 Cup Install Tool
1 Cylinder Head Drill & Tap
16 Injector Cup O-Rings