INDUSTRIAL INJECTION PDM-03523FCC.020 DODGE MARINE BIG BOWL RACE PISTONS - 1989-1998 CUMMINS 5.9L 12-VALVE - .020 OVER

Turn your 12-valve into a hard-charging, cool-running workhorse. INDUSTRIAL INJECTION's PDM-03523FCC.020 Marine “Big Bowl Race Pistons (.020 over) are engineered for towing, sled-pull, and street/strip 5.9L Cummins builds that demand strong combustion control and durability. The enlarged marine-style re-entrant bowl helps manage heat and air/fuel mixing under big boost and aggressive fueling.

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 “P-pump)
• .020 oversize - machine hone/bore required

What's Included

• (6) Marine Big-Bowl race pistons - .020 over
• Wrist pins and locks
• Piston ring set matched for .020 over

Why These Pistons

• Marine “Big Bowl design for improved combustion control under high boost
• Race-ready construction intended for elevated cylinder pressure and EGT
• .020 overbore to refresh worn cylinders and tighten clearances
• Drop-in compression ratio for common performance combos

Recommended Parts (CPP Internal Links Only)

• Shop 1989-1993 5.9L Cummins (VE)
• Shop 1994-1998 5.9L Cummins (P7100)
• Head studs, head gaskets, and injector upgrades (see Cummins 12V categories)

Helpful Notes

• Have your block measured by a machine shop; set piston-to-wall and ring end-gaps to your builder's spec.
• Match bowl style and compression to your injector size, turbo(s), timing, and intended use.

FAQ

The larger re-entrant bowl helps manage heat and air/fuel mixing at higher boost and fueling rates compared to a stock automotive bowl, supporting cleaner combustion under load.

Yes. A professional bore/hone to .020 over is required. Always verify clearances and ring gaps during assembly.

These pistons are supplied in a race configuration for 12-valve builds. If your cam/valve setup requires valve relief or specific coatings, confirm those needs with your builder before ordering.

Head studs, correct head gasket thickness, proper injector sizing, upgraded turbocharger(s), and adequate fuel supply are strongly recommended for high-output builds.