Product Description
Restore factory reliability on your 2004.5-2007 5.9L Cummins with INDUSTRIAL INJECTION PDM-3673 stock replacement pistons. Sold as a complete, drop-in set with rings, wrist pins, and clips for a clean, OE-style rebuild.
Fitment
- 2004.5-2007 Dodge/Ram 2500 & 3500 - 5.9L Cummins 24V Common-Rail (engine years mid-2004 “2004.5 through 2007)
What's Included
- (6) Stock-replacement pistons - standard bore
- Matched piston rings, wrist pins, and clips
Why These Pistons
- OE-style design for quiet operation and durability
- Complete kit minimizes parts hunting during an in-frame or full rebuild
- Direct replacement for mid-2004-2007 5.9L CR applications
Recommended Parts (CPP internal links)
- ARP 247-4202 Head Stud Kit (5.9L/6.7L) - clamp load insurance on fresh builds
- MAHLE HS54556 Cylinder Head Gasket Set (03-07 5.9L)
- 03-07 Cummins CP3 Injection Pumps & Accessories
- Need .020 over? PDM-3673.020 Stock Pistons
- Need .040 over? PDM-3673.040 Stock Pistons
- Shop All Pistons & Rings
Helpful Notes
- Confirm your truck is 2004.5+ common-rail (mid-year change). If you have an early-2004, verify piston compatibility by VIN/engine code.
- Measure piston-to-wall clearance and ring end gaps during assembly. Standard bore blocks must be within spec; otherwise use the .020 or .040 over options linked above.
FAQ
Do these come with rings and pins?Yes - this set includes rings, wrist pins, and clips for each piston to simplify your rebuild.
Will they fit any 5.9L Cummins?They are for 2004.5-2007 5.9L common-rail engines. Earlier 2003-early 2004 applications use different pistons - verify before ordering.
Can I run these with head studs?Absolutely. We recommend ARP 247-4202 head studs on any fresh build to maximize head gasket retention.
What if my cylinders are out of spec?Select the matched .020 or .040 overbore piston sets (linked above) after your machine shop measures the block.
| Specification | Details |
|---|---|
| Part Number | PDM-3673 |
| Fitment | 2004.5-2007 Dodge/Ram 2500 & 3500 - 5.9L Cummins (24V Common-Rail) |
| Bore Size | Standard (STD) |
| Pieces | Set of 6 pistons |
| Includes | Rings, wrist pins, and clips |
| Material/Type | OE-style stock replacement |
| UPC (GTIN-12) | TBD / Not published by manufacturer for STD set (PDM-3673) |
| GTIN-14 (Case) | TBD |
| Country of Origin | Varies by lot |
| Prop 65 Warning | WARNING: Cancer and Reproductive Harm - California Proposition 65 |
| Notes | If your cylinders are out of spec, use PDM-3673.020 or PDM-3673.040. Verify mid-year 2004.5+ common-rail application before ordering. |
