S&S Diesel 305-20SAC-R-SET – Remanufactured 20% Over Injector Set for Early 5.9 Cummins (2003–2004)

Upgrade your early common-rail 5.9L Cummins with a precision-matched set of six remanufactured S&S Diesel Motorsport injectors. The 305-20SAC-R-SET delivers 20% more flow than stock while maintaining clean atomization, balanced cylinder-to-cylinder fueling, and the reliability S&S is known for.

These injectors feature SAC nozzles finished with S&S’s proprietary honing process for consistent, clean orifice geometry. Each set is carefully flow-matched (nozzles within tight 1% variance and complete injectors within 3%) and rate-shape tested so the entire set works together. The result is smoother idle, reduced stress on engine components, improved efficiency, and more usable power compared to unbalanced or worn stock injectors.

Key Features

• Set of 6 remanufactured injectors (20% over stock)
• SAC nozzle technology with proprietary honing
• Precision flow-matched and rate-shape aligned as a complete set
• Built and validated on advanced in-house test equipment that exceeds typical OEM standards
• Direct-fit replacement for early 5.9L common-rail applications

Fitment 2003–2004 Dodge Ram 2500 / 3500 with 5.9L 24-valve Cummins (early common-rail only). Not compatible with 2004.5–2007 late 5.9 applications.

Ideal For Mild performance builds, towing, daily driving, or restoring lost performance and drivability on early 5.9 trucks. Pair with proper tuning and supporting fuel system components for best results.

Core return required. Trust S&S Diesel Motorsport quality for balanced, reliable fueling on your early 5.9 Cummins.