The Enginetech INJ19R-8 is a Duramax 6.6L diesel injector tube o-ring, supplied as a 8-pack. Fits 2001-2007 Chevrolet/GMC (LB7/LLY/LBZ/LMM) diesel applications.
Important Notes
- Sold as a 8-pack of O-rings. Note: Duramax injector tubes typically require 2 O-rings per tube - verify the required quantity against your service order before ordering.
- Fits Duramax 6.6L diesel engines across the LB7/LLY/LBZ/LMM generations (2001-2010 GM/Chevrolet/GMC heavy-duty and medium-duty truck platforms).
- Direct OEM cross-reference replacement - see the OEM Cross-References section below for matching part numbers.
- Common service scenarios: injector R&R, cylinder head rebuild, coolant cross-contamination remediation. Replace injector tube seals any time an injector is removed.
- Always verify the OEM part number cross-reference and the engine serial/RPO code before ordering - diesel injector tube profiles and dimensions vary between engine generations within the same displacement family.
Specifications
| Part Number | INJ19R-8 |
| Product Type | Diesel Injector Tube O-Ring |
| Engine Family | Duramax 6.6L (LB7/LLY/LBZ/LMM) |
| Pack Count | 8 |
| Weight | 1.5 lbs |
| UPC | 707473448840 |
| OEM Cross-References | SB International: 240-1019R, General Motors: 94051259, Isuzu: 8940512590 |
Vehicle Fitment
- 2001-2006 Chevrolet Silverado 2500 HD 6.6L 403ci V8
- 2001-2006 Chevrolet Silverado 3500 6.6L 403ci V8
- 2001-2006 GMC Sierra 2500 HD 6.6L 403ci V8
- 2001-2006 GMC Sierra 3500 6.6L 403ci V8
- 2003-2006 Chevrolet C4500 Kodiak 6.6L 403ci V8
- 2003-2006 Chevrolet C5500 Kodiak 6.6L 403ci V8
- 2003-2006 GMC C4500 Topkick 6.6L 403ci V8
- 2003-2006 GMC C5500 Topkick 6.6L 403ci V8
- 2006 Chevrolet Express 2500 6.6L 403ci V8
- 2006 Chevrolet Express 3500 6.6L 403ci V8
- 2006 GMC Savana 2500 6.6L 403ci V8
- 2006 GMC Savana 3500 6.6L 403ci V8
- 2007 Chevrolet C4500 Kodiak 6.6L 403ci V8 OHV [VIN:2] Turbocharged
- 2007 Chevrolet C5500 Kodiak 6.6L 403ci V8 OHV [VIN:2] Turbocharged
- 2007 Chevrolet Express 2500 6.6L 403ci V8 OHV [VIN:2] Turbocharged
- 2007 Chevrolet Express 2500 6.6L 403ci V8 OHV [VIN:6] Turbocharged
- 2007 Chevrolet Express 3500 6.6L 403ci V8 OHV [VIN:2] Turbocharged
- 2007 Chevrolet Express 3500 6.6L 403ci V8 OHV [VIN:6] Turbocharged
- 2007 Chevrolet Silverado 2500 HD 6.6L 403ci V8 OHV [VIN:6] Turbocharged
- 2007 Chevrolet Silverado 2500 HD Classic 6.6L 403ci V8
- ...and 11 additional applications
Enginetech Fuel Injector Service parts are engineered as an economical, quality repair solution for diesel injector service work. The injector sleeves, tubes, and O-ring kits are manufactured to meet OEM expectations for fit, form, and function, covering GM Duramax 6.6L and Ford Powerstroke 6.0L/6.4L/7.3L applications where injector tube replacement is a routine part of injector R&R, head rebuild, or coolant cross-contamination service. Always verify the OEM cross-reference against the engine being serviced before ordering, as diesel injector tube dimensions and seal profiles vary between Duramax generations (LB7, LLY, LBZ, LMM) and Powerstroke displacements.
