Product Description
CUMMINS 3802564 OEM .020 OVERSIZE PISTON KIT FOR 1994-1998 5.9L 12V CUMMINS
The Cummins 3802564 OEM piston kit is a genuine .020 oversize piston assembly designed for 1994-1998 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L 12-valve Cummins engine.
This piston kit is used during engine rebuilds when the cylinders have been bored and honed .020 inch over standard size.
Built to Cummins OEM specifications, this kit helps restore compression, ring seal, durability, and factory-reliable engine performance.
FEATURES
- Genuine OEM Cummins piston kit
- .020 inch oversize piston
- Designed for 5.9L 12-valve Cummins engines
- Ideal for professional engine rebuilds
- Helps restore compression and oil control
- Built to Cummins factory specifications
- Sold individually
FITMENT
- 1994 Dodge Ram 2500 5.9L 12V Cummins
- 1994 Dodge Ram 3500 5.9L 12V Cummins
- 1995 Dodge Ram 2500 5.9L 12V Cummins
- 1995 Dodge Ram 3500 5.9L 12V Cummins
- 1996 Dodge Ram 2500 5.9L 12V Cummins
- 1996 Dodge Ram 3500 5.9L 12V Cummins
- 1997 Dodge Ram 2500 5.9L 12V Cummins
- 1997 Dodge Ram 3500 5.9L 12V Cummins
- 1998 Dodge Ram 2500 5.9L 12V Cummins
- 1998 Dodge Ram 3500 5.9L 12V Cummins
Fitment Note: Verify compatibility by engine serial number before ordering internal engine components.
WHAT'S INCLUDED
- 1 Cummins 3802564 piston
- Piston rings
- Piston pin
- Retaining clips
IMPORTANT NOTES
- Requires cylinders bored and honed to .020 inch oversize
- Machine shop measurement is required before installation
- Do not mix standard and oversize pistons in the same engine
- Check piston-to-wall clearance before assembly
- Check ring end gap before installation
SPECIFICATIONS
- Brand: Cummins
- Part Number: 3802564
- Product Type: Engine piston kit
- Oversize: .020 inch
- Engine Compatibility: 5.9L 12-valve Cummins
- Fitment Years: 1994-1998
- UPC: 700358207569
- GTIN: 700358207569
- Condition: New genuine Cummins OEM part
FAQ
Is this a complete piston kit?
Yes. This kit includes the piston, rings, piston pin, and retaining clips as packaged by Cummins.
Do I need machine work to use this piston?
Yes. This .020 oversize piston requires the cylinder to be bored and honed to the correct oversize specification.
Will this fit all 5.9L 12-valve Cummins engines?
This piston fits many 1994-1998 5.9L 12-valve Cummins applications, but engine serial number verification is recommended.
Can I mix standard and oversize pistons?
No. All pistons must match the finished bore size of each cylinder.
Is this a genuine Cummins part?
Yes. This is a genuine OEM Cummins piston kit.
