Product Description
LOCK IN YOUR DAMPER. MAX OUT RELIABILITY. The ARP 147-2502 harmonic balancer bolt kit clamps your 5.9L Cummins damper securely to the crank so it stays put under boost, heat, and RPM. This Pro Series set includes four M12 x 1.25 bolts, parallel-ground washers, and a packet of ARP Ultra-Torque—engineered for maximum clamping force and long-term durability.
Built from premium 8740 chromoly and heat-treated prior to thread rolling, these fasteners deliver serious strength for stock rebuilds or performance builds. Perfect for 1989–2007 5.9L Cummins (12-valve & 24-valve) trucks and a smart upgrade whenever you service the front seal or damper.
- Application: 1989–2007 Dodge Ram 5.9L Cummins (12V & 24V)
- Thread size: M12 x 1.25
- Includes: (4) balancer bolts, (4) washers, (1) 1/2 oz. ARP Ultra-Torque
Pair this kit with an OE or performance damper and related ARP hardware to bulletproof your front end.
Fitment
- 1989–1998 5.9L Cummins 12-valve (Dodge Ram)
- 1998.5–2002 5.9L Cummins 24-valve (VP44)
- 2003–2007 5.9L Cummins 24-valve (common rail)
Cross-Reference (Related ARP Products at CPP Diesel)
- ARP 147-2802 Flywheel Bolt Kit (1989–2004 5.9L)
- ARP 247-4203 Head Stud Kit (1989–1998 5.9L 12V)
- ARP 247-4202 Head Stud Kit (1998.5–2007 5.9L 24V)
- ARP 247-6303 Rod Bolt Kit (1989–2018 5.9L/6.7L)
FAQ
DOES THIS KIT FIT BOTH 12V AND 24V 5.9 CUMMINS?
Yes—this ARP 147-2502 kit fits 1989–2007 5.9L Cummins engines covering both 12-valve and 24-valve platforms.
WHAT’S INCLUDED IN THE BOX?
Four 8740 Pro Series balancer bolts (M12 x 1.25), four parallel-ground washers, and a 1/2 oz. packet of ARP Ultra-Torque assembly lubricant.
WHEN SHOULD I REPLACE MY BALANCER BOLTS?
Any time the damper is removed, when upgrading the damper, or during a front main seal service—replacing with ARP hardware ensures proper clamping and reusability when serviced correctly.
IS THERE A PROP 65 WARNING?
Yes—this product may expose you to chemicals known to the State of California to cause cancer or reproductive harm. See P65Warnings.ca.gov.
Specifications for ARP 147-2502
| UPC | 672036043216 |
|---|---|
| GTIN | 672036043216 |
| Thread Size | M12 x 1.25 |
| Quantity | Set of 4 bolts + 4 washers |
| Material / Series | 8740 chromoly, Pro Series |
| Shipping Info | Shipping calculated at checkout; packaged dims approx. 8" x 4" x 10" |
| Cross Reference | ARP 147-2802; ARP 247-4203; ARP 247-4202; ARP 247-6303 |
| E-codes | N/A (fastener hardware) |
| Prop 65 | ⚠️ Cancer and Reproductive Harm — see P65Warnings.ca.gov |
Helpful Pairings
- OE Harmonic Balancer (example 12V): Cummins 3924435
