Product Description
MAHLE 224-3520WR.020 pistons with rings are OE-quality, .020" overbore replacements for the 1994–1998 5.9L Cummins 12-valve. Expansion-controlled design with the top ring 0.335" from the piston crown ensures durability and factory-correct performance.
- Oversize: .020" (0.50 mm)
- Top ring location: 0.335" from piston top
- Skirt: Non-coated • Fuel: Diesel • Includes rings, wrist pin & clips
- GTIN/UPC: 027067913517
PRICING / QUANTITY: CPP Diesel sells this as a complete set of six (6) pistons with rings. The price shown on this product page is for the full 6-piston set (not per piston).
Fitment
- 1994, 1995, 1996, 1997, 1998 Dodge Ram 2500/3500 with 5.9L Cummins 12-valve (VIN "C")
Cross Reference Numbers
- Cummins: 3802495 ,3802493 (interchange)
- MAHLE: 224-3520WR.020 / 2243520WR020
What’s Included
- (6) MAHLE .020" over pistons
- (6) Ring packs (installed)
- (6) Wrist pins & locks
Install Notes
- Confirm cylinder bore & piston-to-wall clearance to Cummins/MAHLE specs before assembly.
- Hone with proper plateau finish; verify ring end gap.
FAQ
Is this the correct piston for my 1994–1998 12-valve?
Yes. It’s designed for the 5.9L 12V Cummins used in 1994–1998 Ram 2500/3500 trucks.
What does “.020 over” mean?
It’s 0.020" (0.50 mm) larger than stock bore for use after machining an engine block during rebuild.
Is the price per piston or per set?
At CPP Diesel, the price is for a full set of six pistons with rings.
Where is the top ring located?
0.335" from the piston crown, per MAHLE spec on this part number.
