Product Description
S&S DIESEL 305-350SAC-SET is a 350% over high-flow injector set engineered for the EARLY 5.9L Cummins (2003–2004). Sold as a brand-new set of 6, these injectors use S&S SAC nozzles and tight OE-style balancing so you get massive fueling with consistent, clean delivery.
- SAC nozzles (not VCO) with proprietary honing for clean, consistent holes.
- Nozzles flow-matched to 1% per set; injectors flow-matched to 3% per set.
- Internal body mods on 250%+ sizes improve injection rate shape and control.
- Early 5.9 fitment only (2003–2004). For late 2004.5–2007, see late-5.9 options.
Fitment
- 2003–2004 Dodge Ram 2500/3500, 5.9L Cummins 24V (Common Rail), EARLY 5.9.
Recommended Parts (Internal Links)
- CP3 Injection Pumps for 03–07 Cummins – stock to 10/12/14mm performance options to feed 350% injectors.
- 5.9L Cummins Common Rail Injectors & install accessories – install kits, tubes, seals, service parts.
- 2003–2007 Cummins 5.9L Category – turbos, lift pumps, clutches, fuel system components.
- S&S Diesel Injectors (5.9 Cummins) – browse all S&S injector options.
- Shop All S&S Diesel at CPP – injectors, pumps, kits, and more.
Helpful Notes
- This is an EARLY 5.9 (2003–2004) set. Late 2004.5–2007 trucks use different injectors—verify your build date/engine code before ordering.
- High-flow (350%) injectors require adequate supply from the low-pressure system and an appropriately sized CP3 and turbo/exhaust to manage EGT.
FAQ
Will these 350% injectors fit my 2005 Ram 5.9?No. 2005 trucks are late 5.9 (2004.5–2007) and use a different injector family. Choose the late-5.9 S&S injectors instead.
What makes S&S injectors different?
S&S uses SAC nozzles with a proprietary honing process, 1% nozzle matching, 3% full-set flow matching, and internal body mods on 250%+ sizes for better rate shape and control.
Do I need to upgrade my CP3 or lift pump?
For 350% over injectors, a high-output CP3 (or dual fuelers) and a quality lift pump are strongly recommended to maintain rail pressure and reliability. See our CP3 options here.
Are these sold as a set of six?
Yes—this SKU is a NEW set of six injectors for the early 5.9.
Where can I see S&S technical info for Cummins injectors?
See S&S product pages and tech resources for early and late 5.9 injectors and balancing details.
