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 Torque Lock injector cups are a great long-term upgrade for your LB7 cylinder heads.

This is a replacement set of Torque Lock Cups if you already have the install hardware.

Includes:

• 8 Torque Lock Injector Cups
• 16 Injector Cup O-Rings

For the full LB7 Duramax Injector Screw In Cup kit click here »

Note: Installation is HIGHLY recommended to be performed at a machine shop.