Product Description
S&S Diesel 6.7C-250SAC-SET 250% Over Injector Set – New – Fits 2007.5–2018 Ram 6.7L Cummins
Go big, go reliable. These brand-new S&S Diesel Motorsport 250% over 6.7C injectors (SAC nozzle) are engineered for serious fuel delivery with OE-grade testing and tight flow matching—built for high-horsepower Cummins builds that demand consistent rail control and clean burn.
Fitment
- 2007.5–2018 Ram 2500/3500 with 6.7L Cummins 24-valve (6.7C) common-rail engines.
Why S&S Diesel 250% Over?
- SAC nozzles with proprietary honing for clean, consistent orifices.
- Nozzles flow-matched to ±1% per set to OE standards; injectors flow-matched to ~±3%.
- Injector build spec is matched to nozzle size for stable rail control; large sizes include internal body mods that improve rate shape.
- Designed for high-fuel-flow competition builds—tuning and supporting fuel system required.
What’s Included
- Set of six (6) brand-new S&S 6.7C 250% over injectors (SAC nozzle).
- Built, calibrated, and flow-matched as a matched set.
- Core policy: brand-new bodies; see CPP cart notes for any refundable core handling on your order.
Recommended Supporting Parts
250% over injectors require sufficient low- and high-pressure fuel supply, good filtration, and proper tuning. Pair with:
- 2007.5–2018 CP3 Injection Pumps & Components (stock, 10mm, 12mm, 14mm, dual kits)
- 07.5–12 Fuel System Components (rails, lines, filtration, hardware)
- 13–18 Bosch Fuel Rail (for later model years)
- 07.5–12 Lift Pumps (adequate supply pressure/volume for big injectors)
- Cummins Injectors Category (browse related sizes/brands)
Helpful Notes
- Tuning required: Custom calibration is necessary to manage rail pressure, pulse width, and smoke control with 250% over nozzles.
- Air side: Plan turbo, intercooler, and exhaust to match fuel volume and EGT targets.
- Fuel quality: Run quality filtration & water separation; monitor with gauges.
FAQs
Are these injectors truly brand new, not reman?Yes—this 6.7C-250SAC-SET is built on brand-new bodies with new SAC nozzles and matched as a set.
Do I need a bigger CP3 (or duals) with 250% over?
Almost always. 250% overflow requires substantial high-pressure supply. Start with a high-output CP3 and consider dual CP3s depending on your horsepower goal. See our 07.5–18 CP3 Pumps.
Will these pass emissions?
These are intended for competition/off-road use where permitted. Verify local and federal regulations before purchase/installation.
What size turbo(s) should I pair with 250% injectors?
Depends on use case and power target, but expect large single or compound setups. Contact CPP for a matched air/fuel combo.
Do I need new fuel rails or lines?
Not always, but higher flow benefits from healthy rails, fresh lines, and leak-free connections. See 07.5–12 Fuel System Components and 13–18 Fuel Rail.
