Product Description
CUMMINS 3802561 OEM ENGINE PISTON KIT (STANDARD BORE) – 5.9L 12-VALVE 6BT (1994–1998)
The genuine CUMMINS 3802561 OEM engine piston kit is the factory-correct standard bore piston assembly used in 1994–1998 5.9L 12-valve 6BT engines. Whether you’re performing a complete overhaul or replacing damaged components, this kit provides unmatched durability and OE-grade reliability. Each piston is built to Cummins specifications for thermal stability, optimal ring sealing, and long service life, making it the ideal choice for stock power levels or light performance upgrades.
This kit includes the OEM piston, wrist pin, retainers, and piston rings, ensuring you receive a complete matched set ready for installation. Cummins metallurgy, skirt design, and ring land geometry help protect the 6BT from blow-by, heat fatigue, and scoring—common failures found in aftermarket copies.
For best results, pair this piston kit with other genuine Cummins internal components like bearings, gaskets, and connecting rod hardware. CPP Diesel carries a full line of certified Cummins engine parts to support full or partial rebuilds.
Key Features
- Genuine Cummins OEM standard bore piston kit.
- Factory-spec metallurgy for superior wear and temperature control.
- Includes piston, rings, wrist pin, and retainers—fully matched set.
- Exact-fit replacement for 1994–1998 5.9L 12-valve 6BT engines.
- Ideal for rebuilds, refreshes, and OE power levels.
Fitment Details
- Engine: 5.9L Cummins 6BT – 12-Valve
- Years: 1994–1998
- Fuel System: P7100-equipped 12-valve engines
- Bore Size: Standard (STD)
- Common Applications: Dodge Ram 2500 & 3500 with 5.9L 12-valve Cummins
Always confirm piston and bore size using engine serial number (ESN) before ordering.
Cross-Reference & Related Cummins Parts
CPP Diesel carries additional Cummins internal components for full 6BT rebuilds. Here are compatible or commonly paired Cummins items:
- CUMMINS 3802375 OEM CONNECTING ROD – 5.9L CUMMINS
- CUMMINS 3802001 OEM MAIN BEARING SET – 5.9L CUMMINS
- CUMMINS 3804896 OEM ROD BEARING SET – 5.9L CUMMINS
- CUMMINS 3804895 OEM CYLINDER HEAD GASKET – 5.9L 12V
Cross-reference numbers: 3802561, 3802560 (assembly reference), 3802375 (rod compatibility), 3942562 (cylinder kit reference).
Specifications for cummins 3802561
| Attribute | Value |
|---|---|
| Brand | Cummins (Genuine OEM) |
| Cummins Part Number | 3802561 |
| Included Components | Piston, rings, wrist pin, retainers |
| Bore Size | Standard (STD) |
| Engine Compatibility | 1994–1998 5.9L 12-valve 6BT |
| UPC | 706285014040 |
| GTIN | 706285014040 |
| Cross Reference | 3802560, 3942562 (kit reference), confirm ESN before substituting |
| E-Codes | Used in non-certified 6BT engines; verify emissions family for federal/commercial applications |
| Shipping Weight | Approx. 3.5–4.5 lbs per piston kit |
| Typical Shipping Method | Standard ground; multiple kits ship in bulk packaging |
| Prop 65 Warning | WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. See www.P65Warnings.ca.gov. |
Frequently Asked Questions
IS THIS A STANDARD BORE PISTON?
Yes. CUMMINS 3802561 is the standard bore (STD) piston kit for 1994–1998 6BT engines. Always verify bore size against your block measurements or ESN.
DO I NEED ONE KIT PER CYLINDER?
Yes. Each 3802561 kit includes parts for one cylinder. A 6BT engine requires six kits for a full rebuild.
ARE THESE PISTONS COMPATIBLE WITH PERFORMANCE BUILDS?
These OEM pistons are ideal for stock to mild performance applications. For high boost or competition use, forged pistons are recommended.
CAN I MIX STANDARD AND OVERSIZE PISTONS?
No. All cylinders must be measured and matched appropriately. Do not mix bore sizes in the same engine.
ARE RINGS AND PINS INCLUDED?
Yes. The kit includes the piston, wrist pin, pin retainers, and ring set.
