Industrial Injection Torque Lock Injector Cup Kit 2001-2004 LB7

Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesel 

*Please contact us for current lead times*

Fix one of the most common LB7 Duramax failure points the right way. Factory LB7 injector cups are prone to loosening and leaking over time. 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.

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

Includes:

• 8- Torque Lock Injector Cups
  
• 16- Injector Cup O-Rings
  
• 1- cylinder head tap
  
• 1- torque lock cup install tool
  
• 1- bottle tap fluid

Note: 

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