Product Description
Build a harder-running 6.7L Cummins with Industrial Injection’s fly-cut, ceramic-coated race pistons (PDM-3732FCC). This set is engineered for high boost and big camshafts, with .100" valve-relief fly cuts, a thermal-barrier crown, and a low-friction skirt coating. Sold as a complete set of six with rings, wrist pins, and clips for a clean, professional rebuild.
Fitment
- 2007.5–2018 Dodge/Ram 2500 & 3500 — 6.7L Cummins ISB
- 2008–2018 Ram 4500/5500 Cab & Chassis — 6.7L Cummins ISB
What’s Included
- (6) Fly-cut, coated pistons (standard bore unless noted)
- Matched rings, wrist pins, and clips
Key Features
- .100" valve-relief fly cuts — clearance for high-lift cams
- Thermal-barrier crown — keeps heat in the chamber for efficiency
- Ceramic skirt coating — reduces friction and scuffing under high load
- Drop-in replacement with included rings/pins/clips
- Available in standard and .020" over sizes (see Alternatives below)
Recommended Parts (CPP Internal Links)
- ARP 247-4202 Head Stud Kit — 5.9/6.7L Cummins
- ARP 247-4204 625+ Head Stud Kit — added clamping for big power
- MAHLE HS54774-1 Upper Head Set — 2007.5–2018 6.7L
- MAHLE HS54774-4 Upper Set w/ Valve Cover Gasket — 2007.5–2018
- CP3 Pumps & Components — 2013–2018 upgrade options
- Shop All 2013–2018 6.7L Cummins Pistons & Rings
Alternatives / Cross-Reference
- Industrial Injection PDM-3732CC.020 — Coated & Chamfered (.020 Over)
- Industrial Injection PDM-3732.020 — Stock Pistons (.020 Over)
- This item — PDM-3732FCC (Std Bore) — current page
Helpful Notes
- Professional machine measurements required — verify piston-to-wall clearance and ring end gaps.
- Match valve reliefs, head gasket thickness, and cam specs to your intended RPM and power range.
- For aggressive fueling/boost (2013–2018 especially), pair with robust head studs and quality tuning.
FAQ
Do I need the .100" fly cuts?If you run a high-lift cam or tight piston-to-valve clearances, the .100" fly cuts provide needed clearance at temperature and RPM.
Are these pistons coated?Yes — they feature a thermal-barrier crown and a ceramic skirt coating to manage heat and reduce friction for competition use.
What bore sizes are available?Standard and .020" over are typical options. See the Alternatives above for direct links.
What supporting mods are recommended?ARP head studs, the correct MAHLE head set, adequate fuel supply, and careful calibration. Consider CP3 solutions on later trucks when raising fueling demands.