INDUSTRIAL INJECTION PDM-3673FCC.040 DODGE RACE PISTONS - 2004.5-2007 5.9L CUMMINS (COMMON RAIL) - .040 OVER

Build a stronger, cooler-running 5.9L Cummins with INDUSTRIAL INJECTION PDM-3673FCC.040 race pistons. This .040" over set is engineered for high cylinder pressure and heat with a thermal-barrier crown and low-friction skirt coating. Each kit arrives ready to install after machining, with rings, wrist pins, and clips included.

Fitment

• 2004.5-2007 Dodge Ram 2500 / 3500 5.9L Cummins (Common Rail, 24-valve)

What's Included

• (6) Race pistons - .040" oversize
• Matched rings, wrist pins, and clips

Key Features

• Race-spec design with fly-cut valve reliefs for high-lift cams
• Thermal barrier crown helps retain heat in the chamber for efficiency
• Skirt coating reduces friction and scuffing under heavy load
• Direct replacement geometry; requires .040" overbore

Recommended Parts (CPP Internal Links)

• ARP 247-4202 Head Stud Kit (5.9L/6.7L Cummins)
• MAHLE 54557A MLS Head Gasket (03-07 5.9L)
• MAHLE HS54556 Head Set (03-07 5.9L)

Cross-Reference / Alternatives

• Industrial Injection PDM-3673CC.040 Performance Pistons (.040 Over)
• Industrial Injection PDM-3673.040 Stock Pistons (.040 Over)

Helpful Notes

• Professional machine work required. Always verify piston-to-wall clearance and ring end gaps to your build spec.
• Select MLS head gasket thickness by measuring piston protrusion after machining.
• Use new head bolts or studs and follow torque specifications precisely.

FAQ

The kit includes rings, pins, and clips, but a .040" overbore and precise measurements are required before installation.

If you run a high-lift cam or tighter piston-to-valve clearance, the reliefs provide added margin at temperature and RPM.

A thermal-barrier crown helps manage heat, while a skirt coating reduces friction and scuffing in high-load use.

Head studs, the correct MLS head gasket or head set, proper fueling and air supply, and careful tuning appropriate to your target power level.