INDUSTRIAL INJECTION PDM-3673FCC DODGE RACE PISTONS — 2004.5–2007 5.9L CUMMINS (24V COMMON RAIL)

Build a stronger, cooler-running 5.9L Cummins. INDUSTRIAL INJECTION’s PDM-3673FCC race pistons are engineered for high heat and high cylinder pressure. Each set includes matched rings, wrist pins, and clips, plus competition-focused machining and coatings for dependable power.

Fitment

• 2004.5–2007 Ram 2500/3500 with 5.9L Cummins (24V common rail)

What’s Included

• (6) Race pistons — standard bore (oversizes available below)
• Matched rings, wrist pins, and clips

Key Features

• Fly-cut valve reliefs (.100") for high-lift cam clearance
• Chamfered tops to help minimize scuffing under load
• Thermal barrier crown coating to keep heat in the chamber for efficiency
• Ceramic skirt coating for reduced friction and scuff resistance
• Drop-in replacement set with rings/pins/clips included

Recommended Parts (CPP internal links)

• ARP 247-4202 Head Stud Kit — 5.9L/6.7L Cummins
• MAHLE HS54556 Cylinder Head Set — 2003–2007 5.9L
• MAHLE CS54556 Lower (Conversion) Gasket Set — 2003–2007 5.9L
• 03–07 Cummins CP3 Injection Pumps — Stock & Performance

Cross-Reference / Alternatives

• PDM-3673CC Performance Pistons (Coated/Chamfered)
• PDM-3673 Stock Pistons — Standard Bore
• PDM-3673FCC.020 — .020 Over
• PDM-3673FCC.040 — .040 Over
• 03–07 Cummins Engine Parts (Category)

Helpful Notes

• Have your machine shop verify cylinder condition and final clearances. Select oversize pistons if needed based on measurements.
• Match head gasket thickness, camshaft, and valve reliefs to your target compression and piston-to-valve clearance.
• For serious fueling increases, plan supporting upgrades (CP3, injectors, turbo, tuning) and always use quality head studs.

FAQ

They include rings, pins, and clips and are machined with fly-cuts and coatings. Proper machining/measurement is still required to confirm clearances and ring end gaps.

The thermal barrier crown helps retain heat in the chamber for efficiency, while the ceramic skirt coating reduces friction and scuffing under high load.

If your cylinders are out of spec after inspection/honing, select the matching oversize set (.020/.040) to achieve correct clearances.

Head studs are strongly recommended for any high-boost/high-heat build to maximize head gasket retention.