Product Description
The CUMMINS 3942565 OEM VALVE TAPPET is designed for 1998.5–2002 5.9L 24-Valve Cummins ISB and QSB diesel engines. This genuine Cummins valve tappet, also known as a lifter or cam follower, is engineered to maintain proper valve train movement, camshaft contact, and long-term engine reliability.
Use this part when repairing valve train wear, replacing a camshaft, servicing lifter-related issues, or rebuilding a 24-valve Cummins engine. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM valve tappet
- Direct-fit replacement lifter / cam follower
- Designed for 1998.5–2002 5.9L 24-Valve Cummins applications
- Helps restore proper valve train operation and camshaft performance
- Recommended for engine repair, maintenance, or rebuild work
- Sold individually
FITMENT
- 1998.5–2002 Dodge Ram 2500/3500 5.9L 24-Valve Cummins
- 1998.5–2002 Cummins ISB 5.9L applications
- Select Cummins QSB industrial and commercial applications
WHAT'S INCLUDED
- 1 Cummins 3942565 OEM Valve Tappet
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3942565
- Cummins Valve Train Components
- Cummins Camshaft Components
- Cummins Pushrods and Rocker Components
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3942565
- Part Type: Valve Tappet / Lifter
- Engine Compatibility: 5.9L 24-Valve Cummins ISB/QSB
- Fitment Years: 1998.5–2002
- Vehicle Application: Dodge Ram 2500 / 3500
- Condition: New OEM Cummins
- Quantity: Sold Individually
- Typical Quantity Per Engine: 12
FAQ
Will this part fit my truck?
This valve tappet fits many 1998.5–2002 5.9L 24-Valve Cummins applications. Always verify fitment by engine serial number before ordering.
Is this a direct replacement?
Yes. Cummins 3942565 is a genuine OEM direct-fit replacement valve tappet designed to meet factory specifications.
What is included?
This listing includes one Cummins 3942565 OEM valve tappet.
How many tappets are required for a complete engine?
Most 24-Valve 5.9L Cummins engines use 12 tappets. This part is sold individually.
Should tappets be replaced during a camshaft replacement?
Yes. Replacing tappets when installing a new camshaft is recommended to help ensure proper wear patterns and long service life.
Do I need any related parts?
Inspect the camshaft, pushrods, rocker arms, valve train hardware, and related engine components during service and replace worn parts as necessary.
