Product Description
Stronger, cooler, more detonation-resistant. INDUSTRIAL INJECTION PDM-03513FCC.040 race pistons are a .040" oversize, competition-ready set for the 1989–1998 5.9L 12-valve Cummins. Built for higher cylinder pressure and heat from big fuel and turbo setups, these coated, de-lipped pistons help stabilize ring seal and reduce skirt scuffing under extreme load.
Fitment
- 1989–1993 Dodge Ram 2500/3500 5.9L Cummins 12-Valve (VE pump)
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12-Valve (P7100)
- .040" overbore required (machine work recommended)
What’s Included
- (6) Race pistons — .040" oversize
- Matched rings, wrist pins, and clips
Key Features
- De-lipped bowl for increased crown strength
- Thermal barrier crown coating for heat management
- Low-friction skirt coating to reduce scuffing
- Competition-ready construction for high boost & fueling
Recommended Parts (CPP Internal Links)
- Shop Pistons, Rings & Rebuild Components
- ARP 247-4202 Head Stud Kit — 1989–1998 5.9L 12V
- P7100 Fuel System Upgrades (94–98)
- All 1989–1998 5.9L Cummins 12V Parts
Helpful Notes
- Have your machine shop set piston-to-wall clearance and ring end gaps to your build’s power/usage profile.
- Match head gasket thickness and timing to compression target, injector size, and turbo(s).
FAQ
Do these drop in without machining?No. They are .040" oversize and require an overbore and precise clearance/ring-gap setup.
Are the pistons coated?Yes. They include a thermal barrier crown coating and a low-friction skirt coating to handle heat and reduce scuffing under load.
Will these work with factory rods?They are compatible with OEM rods in many builds; for high-power use, consider upgraded rod bolts or performance rods and have everything balanced.
What supporting mods are recommended?Head studs, correct head gasket selection, adequate fuel supply, and turbo sizing that matches your power goal. See the recommended parts above.
