Product Description
Stronger, cooler, cleaner combustion for your 12-valve build. Industrial Injection’s Coated & Chamfered (.020” over) piston set is engineered for high cylinder pressure and heat. Each set includes pistons, rings, wrist pins, and clips for a true drop-in kit after machining the block to .020”. Coated crowns help manage heat and the skirt coating reduces friction and scuffing; chamfered tops ease loading at TDC.
Fitment
- 1989–1993 Dodge W/D-Series 5.9L Cummins 12V (VE-pump)
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12V (P7100)
- Requires machine shop overbore to .020” and final hone to spec
What’s Included
- (6) Coated & chamfered pistons — .020” oversize
- Matched rings, wrist pins, and retaining clips
Key Features
- Thermal barrier crown coating to keep heat in the chamber
- Skirt coating to reduce friction and scuffing under load
- Chamfered piston tops for durability at TDC
- Complete set with rings/pins/clips; direct drop-in after overbore
Recommended Parts (CPP Internal Links Only)
- ARP 247-4203 Head Stud Kit — 1989–1998 5.9L 12V
- MAHLE HS4068 Upper Head Gasket Set — 1989–1998 12V
- MAHLE CS4068 Lower Engine Gasket Set — 1989–1998 12V
- CPP Fly-Cut Pistons Service (add .100" valve reliefs)
- Shop All Cummins Competition Pistons
Cross-Reference / Alternatives
- Industrial Injection PDM-03513.020 — Stock Pistons (.020 Over)
- MAHLE 224-3523WR.040 — Marine-bowl Piston Kit (.040 Over)
- See CC (.000/.040) & FCC (Race) variants
Helpful Notes
- Have your machine shop set piston-to-wall clearance and ring end gaps to your intended power/usage.
- When running high-lift cams or tight P-to-V targets, add our .100" fly-cut service for extra valve clearance.
FAQ
Are these pistons a direct “drop-in”?The kit includes rings, pins, and clips. Your block must be bored/honed to .020” over and measured for correct clearances.
What coatings are used on the CC pistons?They feature a thermal barrier crown coating to manage heat and a skirt coating to reduce friction/scuffing in high-load use.
Do I need valve reliefs for my cam?With higher-than-stock lift or tight timing, fly-cutting (.100”) is recommended to ensure piston-to-valve clearance.
Which head gasket set should I pair with these?Use MAHLE HS4068 (upper set) for the 12-valve top end and CS4068 (lower set) for the bottom end.