Product Description
Build a harder-charging 24-valve Cummins. INDUSTRIAL INJECTION PDM-3354FCC.040 race pistons are purpose-built for 1998.5–2002 5.9L ISB (24V) engines. Each .040" over piston features thermal barrier crown coating and a low-friction ceramic skirt coating to survive heat and cylinder pressure. Race pistons are fly-cut (.100" valve reliefs) and chamfered for durability, with a complete drop-in kit for a clean, professional build.
Fitment
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24-valve (ISB)
- .040" (1.00 mm) oversize — machine/finish hone required
What’s Included
- (6) Race pistons — .040" over
- Rings, wrist pins, and clips
Key Features
- Fly-cut with .100" valve reliefs for high-lift cam piston-to-valve clearance
- Thermal barrier crown helps keep heat in the chamber through the power stroke
- Ceramic skirt coating reduces friction/scuffing under extreme load
- Chamfered tops; drop-in kit with rings/pins/clips
Recommended Parts (CPP internal links)
- ARP 247-4202 Head Stud Kit — 5.9L 24V
- ARP 247-4204 625+ Head Stud Kit — 5.9/6.7 24V
- MAHLE HS54174-2 Upper/Head Gasket Set — 1998.5–2002 5.9L 24V
- Pistons & Rings — 24V Cummins Category
- Competition Pistons — Cummins
Helpful Notes
- Have your machine shop verify piston-to-wall clearance and set ring end gaps for your power level and fuel/air combo.
- Confirm piston-to-valve clearance when using high-lift cams; these race pistons include .100" fly-cuts.
FAQ
Are these truly “drop-in” pistons?They’re supplied with rings, pins, and clips, but a .040" overbore and precise measurements are required for correct clearances and ring gaps.
What’s the difference between Performance (CC) and Race (FCC)?Race (FCC) pistons include fly-cut valve reliefs (.100") in addition to the coatings and chamfered tops found on Performance pistons—ideal for high-lift cams and aggressive builds.
Do the coatings change my clearances?The ceramic skirt coating cures to ~.001" film thickness and is designed not to require additional clearance beyond proper machine specs.
Which head studs should I choose?ARP 247-4202 suits most street/strip builds; step up to ARP 247-4204 625+ for very high boost and competition use.
