Product Description
Stronger, cooler, more reliable 5.9L builds start here. INDUSTRIAL INJECTION PDM-3673CC performance pistons add a thermal-barrier crown and low-friction skirt coating, plus a chamfered bowl to stand up to heat and cylinder pressure in tuned 2004.5–2007 Cummins common-rail trucks. Sold as a complete set with rings, pins, and clips for a clean, pro-level rebuild.
Fitment
- 2004.5–2007 Dodge Ram 2500/3500 5.9L Cummins (Common Rail)
What’s Included
- (6) coated & chamfered performance pistons (PDM-3673CC)
- Matched rings, wrist pins, and clips
Key Features
- Thermal-barrier crown to keep heat in the chamber for power and durability
- Skirt coating to reduce friction and scuffing under load
- Chamfered bowl to help minimize cylinder wall contact under extreme conditions
- Available sizes: STD, .020, .040 (select the correct size for your bore)
Recommended Parts (CPP internal links)
- ARP 247-4202 Head Stud Kit (5.9L/6.7L)
- MAHLE HS54557 Head Set (2003–2007 5.9L)
- 03–07 Cummins CP3 Injection Pumps (Stock & Performance)
- Alternate: PDM-3673.040 Stock Pistons (.040 Over)
- Upgrade: PDM-3673FCC.020 Race Pistons (.020 Over)
- Shop All Cummins Pistons & Rings
Helpful Notes
- Overbore sizes require professional machine work. Always measure and set ring end gaps and piston-to-wall clearances per your build spec.
- Match gasket thickness, compression ratio, injector size, and turbo setup to your power goals.
FAQ
What does “CC” mean on PDM-3673CC?It denotes the coated & chamfered performance version of the 2004.5–2007 Cummins 5.9L piston set, featuring a thermal-barrier crown, skirt coating, and a chamfered bowl.
Are rings, pins, and clips included?Yes. This is a complete piston set with matched rings, wrist pins, and clips for all six cylinders.
Which size should I choose—STD, .020, or .040?Use STD for a standard bore in spec; select .020 or .040 after your machinist confirms the necessary overbore to clean up the cylinders.
Do I need head studs with these pistons?For tuned or heavy-tow builds, head studs are strongly recommended to control cylinder pressure and gasket load.
