FUEL SYSTEM — 2019–2024 RAM 6.7L CUMMINS

Restore reliability and add capability to your 5th-Gen Cummins with curated CP3 conversions, high-flow CP3 pumps, injectors, lift pumps, filters & housings, and OE hard lines. CPP Diesel stocks emissions-conscious solutions plus race-only parts (where noted) for daily drivers, tow rigs, and competition builds.

Quick Links

• Fuel System — 19–24 Cummins 6.7L (Category Hub)
• CP3 Pumps & CP4-to-CP3 Conversion Kits — 19–24
• 6.7L Cummins Injectors — All Options

Featured Components

CP4-to-CP3 Conversion (2019–2020 trucks)

• S&S RAM-CP3-KIT — CP3 Conversion Kit (no pump)
• S&S RAM-CP3-NOTUNE — CP3 Conversion Kit (no tuning required)
• S&S RAM-CP3-14HS — 14mm High-Output CP3 Conversion (competition)
• Exergy CP3 options — 10mm / 12mm / 14mm

Lift Pumps & Air/Fuel Separation

• FASS Titanium Signature Series (2019–2020) — 100/165/250/290 GPH kits for stock to high-HP builds.
• FASS No-Drop Series Plus (2019–2020) — includes sump for simplified install.
• AirDog 4G FP-100 (2019–2023) — compact, quiet, steady supply.
• AirDog II-5G DF-165 (2019–2023) — higher flow for tuned trucks.

Injectors (2019+ specific)

• S&S 6.7C19-10SAC TorqueMaster — Standard Output (SO/HO sets & singles available)
• S&S 6.7C19 performance sizes — 50% / 100% / 150% / 200% over
• Exergy — premium injectors & CP3s

Filters, Housings & Plumbing

• Mopar 68157291AA Fuel Filter (2013–2024)
• Mopar 68358393AB Filter Housing (2019–2024)
• Fleece FPE-CUMM-UBFA-1924 Under-Bed Spin-On Filter Assembly — Donaldson service element
• Mopar Injector Line (example: 68479999AA) — OE hard lines by cylinder

Why Upgrade with CPP Diesel?

• Reliability: CP4-to-CP3 kits and quality lift pumps protect injectors and the high-pressure system.
• Serviceability: Under-bed spin-on conversions and OE housings simplify filter changes.
• Scalability: From stock SO injectors to 200% over race sets and 14mm CP3s, we support any build.

Fitment Notes

• Designed for 2019–2024 Ram 2500/3500 6.7L Cummins. Check each product page for SO vs. HO trim and year coverage.
• Many 2019–2020 trucks used CP4; CP3 conversion kits shown above address that configuration. 2021+ trucks are CP3-equipped.

Frequently Asked Questions

Do I need tuning with a CP3 conversion?
Options include a No-Tune S&S kit, plus competition kits that require custom calibration. Match the kit to your use case.

What lift pump flow should I choose?
Stock/tow rigs: ~100–165 GPH (FASS 100–165, AirDog 100). Higher power: 165–250+ GPH (AirDog II-5G 165, FASS 165–250).

Which injectors are right for me?
For stock-like manners, choose S&S TorqueMaster SO. For power builds, step to 50–200% over sets and pair with appropriate CP3 and lift pump capacity.

Should I upgrade filtration?
Yes—stick with OE-quality filters or convert to a spin-on under-bed setup for lower service cost and better water separation.

Need help sizing a pump or injector set? Call 724-785-4022 and our Cummins specialists will spec a package for your goals.