Product Description
The CUMMINS 3970305 OEM TIMING GEAR HOUSING is designed for 2003–2007 5.9L Cummins ISB Common Rail diesel engines. This genuine Cummins timing gear housing provides proper mounting and alignment for front engine timing components while maintaining OEM fitment, sealing, and durability.
Use this part when repairing front engine damage, replacing a cracked or damaged timing cover housing, servicing timing components, or performing a complete engine rebuild. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM timing gear housing
- Direct-fit replacement for 2003–2007 5.9L Cummins engines
- Supports proper timing gear alignment and component mounting
- Designed to maintain OEM sealing and front engine integrity
- Ideal for engine repair, timing component service, or rebuild work
FITMENT
- 2003–2007 Dodge Ram 2500 5.9L Cummins Common Rail
- 2003–2007 Dodge Ram 3500 5.9L Cummins Common Rail
- Select Cummins ISB industrial and commercial applications using the 5.9L Common Rail platform
WHAT'S INCLUDED
- 1 Cummins 3970305 OEM Timing Gear Housing
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3970305
- Cummins Front Crankshaft Seal Components
- Cummins Timing Cover Gaskets and Seals
- Cummins Camshaft and Timing Gear Components
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3970305
- Part Type: Timing Gear Housing
- Engine Compatibility: 5.9L Cummins ISB Common Rail
- Fitment Years: 2003–2007
- Vehicle Application: Dodge Ram 2500 / 3500
- Condition: New OEM Cummins
- Installation Type: Direct Replacement
- Engine Location: Front Engine Timing Assembly
FAQ
Will this timing gear housing fit my truck?
This housing is designed for 2003–2007 5.9L Cummins Common Rail applications. Always verify fitment by engine serial number before ordering.
Is this a genuine Cummins part?
Yes. Cummins 3970305 is a genuine OEM timing gear housing manufactured to Cummins factory specifications.
What does the timing gear housing do?
The timing gear housing supports and protects critical front engine timing components while providing proper alignment and sealing for the timing assembly.
What is included with this part?
This listing includes one Cummins 3970305 OEM timing gear housing. Gaskets, seals, and additional hardware may be sold separately unless otherwise specified.
When should a timing gear housing be replaced?
Replacement is recommended if the housing is cracked, damaged, warped, leaking, or unable to properly support timing components.
Do I need any related parts?
Inspect front crankshaft seals, timing cover gaskets, camshaft components, gears, fasteners, and surrounding timing system hardware during installation and replace worn parts as necessary.
