2001-2004 LB7 Duramax Torque Lock Injector Cup Kit - Industrial Injection - PDM-07021K

2001-2004 LB7 Duramax Torque Lock Injector Cup Kit
Includes Install Tool and Hardware
Fix one of the most common LB7 Duramax failure points the right way. The Industrial Injection Torque Lock Injector Cup Kit permanently replaces the factory-pressed injector cups with a threaded, screw-in design-eliminating coolant intrusion, injector seal failures, and repeat tear-downs.
Engineered specifically for 2001-2004 GM LB7 Duramax engines, this kit includes everything needed for a professional-grade repair, including the proper install tool and all required hardware.
Key Features
Converts factory press-in cups to threaded screw-in cups
Prevents coolant leaks into the fuel system
CNC-machined for a precise, leak-free fit
Designed for long-term reliability and repeatable installs
Ideal for stock or performance LB7 builds
What’s Included
8 Torque Lock Injector Cups
16 Injector Cup O-Rings
1 cylinder head tap
1 torque lock cup install tool
1 bottle taping fluid
Vehicle Fitment
2001-2004 GM Duramax LB7
Silverado and Sierra 2500HD / 3500HD
6.6L LB7 Diesel Engines Only
Why Upgrade to Torque Lock Injector Cups?
Factory LB7 injector cups are prone to loosening and leaking over time. This screw-in design locks the cups in place, providing a permanent solution trusted by diesel shops and builders nationwide.
Built to solve the problem once-so you don’t have to do the job twice. Perfect for injector replacements, head work, or preventative maintenance.
Note: Installation is HIGHLY recommended to be performed at a machine shop.