Product Description
The CUMMINS 3934048 OEM PISTON PIN (WRIST PIN) is designed for 1994–2002 5.9L Cummins diesel engines and select Cummins 4BT and 6BT applications. This genuine Cummins piston pin provides the critical connection between the piston and connecting rod while maintaining proper fitment, durability, and engine performance.
Use this part when rebuilding a Cummins engine, replacing damaged rotating assembly components, or servicing pistons and connecting rods. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM piston pin / wrist pin
- Designed for 5.9L Cummins, 4BT, and 6BT applications
- Precision-machined for proper piston and rod fitment
- Helps maintain correct piston movement and engine operation
- Recommended for engine rebuilds and rotating assembly service
- Direct-fit replacement component
FITMENT
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12V
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24V
- Select Cummins 4BT 3.9L diesel engines
- Select Cummins 6BT 5.9L diesel engines
- Industrial, agricultural, marine, and commercial applications using compatible Cummins engines
WHAT'S INCLUDED
- 1 Cummins 3934048 OEM Piston Pin (Wrist Pin)
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3934048
- OEM Cummins pistons
- Connecting rod and piston service components
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3934048
- Part Type: Piston Pin / Wrist Pin
- Engine Compatibility: 4BT, 6BT, 5.9L Cummins
- Fitment Years: 1994–2002
- Vehicle Application: Dodge Ram 2500 / 3500 and select Cummins-powered equipment
- Condition: New
- Quantity: Sold Individually
FAQ
Will this part fit my truck?
This part fits the applications listed above. Always verify your engine serial number and piston specifications before ordering.
Is this a direct replacement?
Yes. Cummins 3934048 is a genuine OEM piston pin designed for the listed Cummins engine applications.
What is included?
This listing includes one Cummins 3934048 OEM piston pin (wrist pin).
What does the piston pin do?
The piston pin connects the piston to the connecting rod, allowing the piston to pivot smoothly as it moves through the cylinder bore.
Should piston pins be replaced during an engine rebuild?
Many engine builders recommend inspecting and replacing worn piston pins during a rebuild to ensure proper fitment and long-term reliability.
Do I need any related parts?
Inspect pistons, connecting rods, bushings, bearings, rings, and other rotating assembly components during installation and replace worn parts as needed.
