Product Description
Genuine Cummins
Cummins 3946495 — Harmonic Balancer Dowel Pin
MPN: 3946495 | Also Known As: crank balancer dowel, pin dowel | Cross-Ref: Mopar 5086727AA
Why This Part
- ✓ Aligns and pins the harmonic balancer to the crankshaft to prevent rotation/slip.
- ✓ Direct-fit OE for 2003–2018 5.9L/6.7L ISB Ram applications.
- ✓ Hardened OE steel for durability and precise location.
- ✓ Ideal when servicing the balancer, front cover, or after a key/dowel failure.
OE Fit Stock Replacement 1 Per Engine
Quick Specs
| Type | Harmonic balancer locating dowel (pin dowel) |
|---|---|
| OE Part # | 3946495 |
| Cross-Reference | Mopar 5086727AA |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2003–2007 | Ram 5.9L ISB (24V Common-Rail) | Ram 2500/3500 |
| 2007.5–2018 | Ram 6.7L ISB (24V Common-Rail) | Ram 2500/3500 |
Industrial/Off-Highway: Used primarily on EPA13 ISB/QSB 6.7 variants—always confirm by ESN.
Often Paired With
- Harmonic Balancer: 5285679 (’07.5–’12 6.7L), 5333569 (’13–’18 6.7L)
- Balancer Bolt & Washer (single-use torque-to-yield; replace on reassembly)
- Front Crank Seal if removed during service
What’s In The Box
- (1) Genuine Cummins Harmonic Balancer Dowel Pin (3946495)
Install Tips
- Clean mating surfaces; verify balancer and crank keyway alignment.
- Use new balancer bolt; torque per factory spec and angle.
- Inspect for prior slip or fretting on the hub—replace parts as needed.
FAQ
WILL THIS FIT MY 2003–2018 5.9L/6.7L CUMMINS RAM?Yes—this OE dowel pin is listed for 2003–2018 Ram 2500/3500 with 5.9L or 6.7L ISB (confirm by VIN/ESN).
WHAT DOES THE DOWEL PIN DO?It aligns and locks the harmonic balancer on the crankshaft to prevent rotation and maintain correct timing reference.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3946495 for exact fit and hardness.
IS THERE AN EQUIVALENT MOPAR NUMBER?Common cross-reference is Mopar 5086727AA.
HOW MANY DO I NEED?One per engine; sold individually.
Product Videos
Custom Field
Vehicle Year 2003+
Vehicle Make DODGE
ENGINE 5.9L /[] 6.7L CUMMINS
