INDUSTRIAL INJECTION PDM-3673CC.020 DODGE PERFORMANCE PISTONS — 2004.5–2007 5.9L CUMMINS (COMMON-RAIL) — .020 OVER

Level up your 5.9L CR build. INDUSTRIAL INJECTION PDM-3673CC.020 performance pistons are .020" over for precise cylinder cleanup and durability under higher boost and cylinder pressure. Purpose-built for the 2004.5–2007 common-rail Cummins.

Fitment

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

Why These Pistons

• .020" overbore for proper wall finish, ring seal, and power retention
• Performance crown/skirt treatments engineered for heat and load of tuned CR builds
• Matched for 5.9L common-rail bowl and compression characteristics

Recommended Parts (CPP Internal Links Only)

• ARP 247-4202 Head Stud Kit — 5.9L/6.7L 24V
• ARP 247-4204 625+ Head Stud Kit — for high-HP builds
• MAHLE HS54557 Head Gasket/Upper Set — 2003–2007 5.9L
• 03–07 CP3 Injection Pumps & Upgrades
• 03–07 Competition Pistons & Pins
• Pistons & Rings Category

Helpful Notes

• Professional machine work required for .020" overbore. Verify piston-to-wall clearance and file-fit ring end gaps to your target power level.
• Match head gasket thickness and any valve reliefs to your cam lift and piston protrusion.

FAQ

Yes—these are designed for common-rail 24-valve 5.9L Cummins engines built from mid-2004 (2004.5) through 2007. Always confirm your VIN/build date and common-rail fueling before ordering.

For tuned or towing builds, head studs dramatically improve head sealing and are highly recommended; consider 625+ material for high boost/competition.

.020" over is a common cleanup size that restores cylinder roundness and sealing when standard bore is worn or tapered. Have a machine shop measure before selecting pistons.

Use a 2003–2007 5.9L Cummins head set and select the correct MLS head gasket thickness for your measured piston protrusion.