Product Description
Cummins 3907998 OEM Timing Pin Housing Bolt (Round Head Cap Screw) – 5.9L 12-Valve (1989–1998)
The Cummins 3907998 OEM Timing Pin Housing Bolt, also known as the round head cap screw, is a genuine Cummins replacement fastener designed for securing the timing pin housing on 1989–1998 5.9L 12-valve Cummins diesel engines. Manufactured to Cummins OEM specifications, this bolt provides proper fitment, thread engagement, and long-term durability during engine assembly, maintenance, and timing cover service.
Whether you're performing a complete engine rebuild, replacing missing hardware, or restoring your 12-valve Cummins to factory specifications, the Cummins 3907998 timing pin housing bolt ensures reliable retention and proper installation of the timing pin housing assembly.
Features
- Genuine Cummins OEM replacement component
- Direct replacement for Cummins part number 3907998
- Round head cap screw design
- Designed for timing pin housing installation
- Manufactured to Cummins factory specifications
- Proper thread engagement and clamping force
- Corrosion-resistant finish for durability
- Ideal for engine rebuilds and maintenance repairs
- Restores factory hardware configuration
- Built for long service life in diesel applications
Fitment
- 1989 Cummins 5.9L 12-Valve Diesel
- 1990 Cummins 5.9L 12-Valve Diesel
- 1991 Cummins 5.9L 12-Valve Diesel
- 1992 Cummins 5.9L 12-Valve Diesel
- 1993 Cummins 5.9L 12-Valve Diesel
- 1994 Cummins 5.9L 12-Valve Diesel
- 1995 Cummins 5.9L 12-Valve Diesel
- 1996 Cummins 5.9L 12-Valve Diesel
- 1997 Cummins 5.9L 12-Valve Diesel
- 1998 Cummins 5.9L 12-Valve Diesel
Note: Always verify fitment by engine serial number and application before ordering. Hardware dimensions and installation locations may vary between engine configurations.
What's Included
- One (1) Genuine Cummins 3907998 Timing Pin Housing Bolt
Specifications
- Manufacturer: Cummins
- Part Number: 3907998
- Product Type: Timing Pin Housing Bolt
- Alternate Description: Round Head Cap Screw
- Material: OEM Grade Steel
- Finish: Corrosion-Resistant Coating
- Application: Timing Pin Housing Retention
- Engine Compatibility: 5.9L 12-Valve Cummins
- Model Years: 1989–1998
- Installation Location: Timing Pin Housing Assembly
- OEM Replacement: Yes
Cross Reference Numbers
3907998
FAQ
What is the Cummins 3907998 used for?
The Cummins 3907998 is the OEM timing pin housing bolt used to secure the timing pin housing assembly on 5.9L 12-valve Cummins diesel engines.
Is this a genuine Cummins part?
Yes. The 3907998 is a genuine Cummins OEM replacement fastener manufactured to factory specifications.
Will this fit all 12-valve Cummins engines?
This bolt is commonly used on 1989–1998 5.9L 12-valve Cummins applications. Always verify fitment using your engine serial number before ordering.
Can I reuse my original timing pin housing bolt?
While the original bolt may be reusable if undamaged, replacing worn, corroded, or missing hardware during service helps ensure proper installation and long-term reliability.
Is this sold individually?
Yes. This listing includes one genuine Cummins 3907998 timing pin housing bolt unless otherwise specified.
Why use OEM Cummins hardware?
OEM Cummins hardware is engineered to meet factory strength, fitment, and durability requirements, helping maintain proper component retention and service life.
