S&S Diesel Fuel Injectors - Set | 2001-2004 Duramax LB7

The S&S Diesel Motorsport SAC00® Fuel Injectors are engineered as a direct replacement upgrade for 2001–2004 GM 6.6L Duramax LB7 engines. Developed in collaboration with Bosch, these injectors utilize an advanced SAC-style nozzle designed to replace the factory VCO (valve covered orifice) nozzle used in original LB7 injectors. This improved nozzle design provides enhanced durability while maintaining stock fuel delivery and emissions compliance.

Unlike the original VCO injectors, which are known for shorter service life in LB7 engines, the SAC00® injectors are designed to significantly improve longevity without altering fueling characteristics. Because they maintain factory flow rates, no ECM tuning or calibration changes are required during installation, making them a straightforward replacement for stock injectors.

These injectors provide a reliable solution for LB7 Duramax owners looking to restore proper fuel system performance while improving injector durability. The SAC00® design helps address common LB7 injector reliability concerns while preserving factory drivability and emissions performance.

• Engine Fitment: 2001–2004 GM 6.6L Duramax LB7
• Injector Type: SAC-style nozzle design
• Stock Fuel Delivery: Maintains factory fueling with no calibration required
• Direct Replacement: Installs in place of original LB7 injectors
• Improved Durability: Designed to outlast factory VCO-style injectors
• Emissions Compliance: CARB compliant (EO# D-756-2)
• Exclusive Design: SAC00® injectors are proprietary to S&S Diesel Motorsport

The S&S Diesel Motorsport SAC00® injectors provide LB7 Duramax owners with a dependable, emissions-compliant injector upgrade that improves injector lifespan while maintaining stock engine performance.

Return Policy: All returns (not core returns) are subject to a 20% restocking fee. Refunds will only be issued once the item is received in new and unused condition.