S&S Diesel LB7-45SAC-R-SET Reman 45% Over Injector Set

Upgrade the fueling and reliability of your 2001–2004 LB7 Duramax with the S&S Diesel Motorsport LB7-45SAC-R-SET. This is a complete, balanced set of eight remanufactured injectors featuring modern SAC45® nozzles that flow approximately 45% over stock.

Stock LB7 injectors use outdated VCO nozzles that commonly fail around 50,000 miles, leading to rough idle, white smoke, and poor performance. S&S replaces that design with a more durable SAC-style nozzle developed for improved longevity and consistent fuel delivery under higher pressures. The result is a direct-fit set that delivers extra fueling for noticeable gains in power and throttle response while maintaining smooth, reliable operation—no custom calibration required for most applications.

Key Features:

• Complete matched set of 8 remanufactured injectors
• 45% over stock fuel flow
• Modern SAC45® nozzle design for superior durability vs. OEM VCO
• Balanced to tight tolerances for even cylinder fueling
• Direct replacement for 2001–2004 Chevy Silverado / GMC Sierra 2500HD & 3500HD with 6.6L LB7 Duramax
• Built and tested to S&S Diesel standards

Fitment: 2001–2004 GM 6.6L Duramax LB7 (Silverado/Sierra 2500HD/3500HD)