Product Description
MOPAR 4429857 HARMONIC BALANCER BOLT FOR 89-07 DODGE WITH 5.9L CUMMINS ENGINE
Secure your engine’s harmonic balancer properly with the genuine Mopar 4429857 Harmonic Balancer Bolt designed for 1989-2007 Dodge Ram trucks equipped with the legendary 5.9L Cummins diesel engine. This OEM bolt is engineered to provide the precise clamping force required to keep the harmonic balancer securely mounted under heavy diesel operating conditions.
The harmonic balancer bolt plays a critical role in maintaining crankshaft stability and reducing harmful engine vibrations. Reusing worn or stretched bolts can lead to balancer movement, vibration issues, crankshaft damage, or premature front engine wear. Genuine Mopar hardware ensures factory-correct fitment, strength, and durability.
Whether you are replacing the harmonic balancer, performing front engine service, or completing a Cummins rebuild, Mopar 4429857 provides the reliability demanded by towing, performance, and daily driving applications.
Frequently Asked Questions (FAQ)
Why should the harmonic balancer bolt be replaced?
Replacing the bolt helps maintain proper torque retention and clamping force, reducing the risk of balancer loosening or crankshaft damage.
Is this a genuine OEM Mopar bolt?
Yes — this is a genuine Mopar OEM harmonic balancer retaining bolt for Dodge Ram Cummins applications.
What engines does this fit?
This bolt fits Dodge Ram trucks equipped with the 5.9L Cummins diesel engine from 1989-2007.
Can this be reused?
For best results and long-term reliability, replacing the bolt during harmonic balancer service is strongly recommended.
Fitment Details
- 1989-1993 Dodge Ram 250/350 5.9L Cummins Diesel
- 1994-1998 Dodge Ram 2500/3500 5.9L Cummins Diesel
- 1998.5-2002 Dodge Ram 2500/3500 5.9L Cummins Diesel
- 2003-2007 Dodge Ram 2500/3500 5.9L Cummins Diesel
- Direct OEM replacement harmonic balancer retaining bolt
- Ideal for harmonic balancer replacement and front engine service
- Verify application compatibility before ordering
Specifications for Mopar 4429857
| Category | Details |
|---|---|
| Part Number | 4429857 |
| Brand | Mopar (OEM) |
| Product Type | Harmonic Balancer Bolt |
| Engine Compatibility | 5.9L Cummins Turbo Diesel |
| Vehicle Fitment | 1989-2007 Dodge Ram 250/2500 & 350/3500 |
| Function | Secures harmonic balancer to crankshaft |
| Material | Hardened High-Strength Steel |
| Installation Type | Direct OEM Replacement |
| UPC | Not Available |
| GTIN | Not Available |
| Shipping Weight | Approx. 0.5 lb |
| Shipping Dimensions | Approx. 4" x 2" x 2" |
| Shipping | Standard ground shipping available |
| Country of Origin | OEM Supplier Manufactured |
| Prop 65 | WARNING: Cancer and reproductive harm – www.P65Warnings.ca.gov |
| Condition | New |
