PowerBond by Dayco PB1186N harmonic balancer for the 1994-2003 Dodge Ram 1500 V8 5.9L and other vehicles damps crankshaft vibration and carries the serpentine belt pulley. Also called an engine harmonic balancer, it mounts on the front of the crankshaft.
- Integrated serpentine pulley, 178.600 mm outside diameter
- Grey iron outer ring
- Timing marks on the balancer
- Neutral balance with no counterweight
- Crank bore of 38.85 mm
Quick facts
- Part: PowerBond by Dayco PB1186N harmonic balancer
- Also called: engine harmonic balancer
- Fits: 1994-2003 Dodge Ram 1500 V8 5.9L and other vehicles
- Material: Grey iron outer ring
- Condition: New
A balancer that is wearing out can show up as a wobbling pulley, a belt that slips or keeps coming off, or vibration from the front of the engine. Those signs alone do not prove the balancer is at fault, since a worn belt or a weak tensioner can also make a belt slip.
Fits
The vehicles it fits include the 1994-2003 Dodge Ram 1500 V8 5.9L, the 1994-2002 Dodge Ram 2500 V8 5.9L and the 1998-2003 Dodge Dakota V8 5.9L, and each takes one. If your truck or van is not named here, open the "Vehicles it fits" section and look up your exact model and engine.
Specifications
Fit and size
- Quantity per vehicle: 1
- Crank bore: 38.85 mm (1.530 in)
- Overall outside diameter: 183.00 mm (7.205 in)
- Overall width: 121.30 mm (4.776 in)
- Nose outside diameter: 55.60 mm (2.189 in)
- Ring width: 30.00 mm (1.182 in)
- Pulley outside diameter: 178.600 mm (7.032 in)
Build and materials
- Outer ring material: grey iron
- Integrated pulleys: 1, serpentine
- Timing marks: yes
- Counterweight balance: neutral, no counterweight
- Condition: new
In the box
One harmonic balancer. Mounting hardware and a Woodruff key are not included, so plan on new fasteners.
Interchange: 594-133 · DA-3603
102129 · 6005287
This part cross-references / interchanges with the following part numbers:
102129, 594-133, 6005287, DA-3603
Frequently Asked Questions
Is this the right Ram 1500 harmonic balancer for a 1994-2003 Dodge Ram 1500 V8 5.9L?
Yes, the PowerBond by Dayco PB1186N fits the 1994-2003 Dodge Ram 1500 V8 5.9L and the 1994-2002 Dodge Ram 2500 V8 5.9L; the "Vehicles it fits" section covers other models.
Does the PB1186N harmonic balancer come with a crank bolt or Woodruff key?
No. This PowerBond by Dayco PB1186N is the balancer only; hardware, a Woodruff key and installation instructions are not included, so plan on new fasteners.
What are the crank bore and outside diameter of the PB1186N balancer?
The crank bore is 38.85 mm (1.530 in) and the overall outside diameter is 183.00 mm (7.205 in). The integrated serpentine pulley measures 178.600 mm (7.032 in) across.
How do I inspect an old harmonic balancer before swapping it for a new one?
With the engine off and cool, look for cracks, a ring that looks shifted or timing marks that no longer line up. A shop can test the balancer with the engine running.
Does the PB1186N replace part number 594-133?
Yes. 594-133 is one of the interchange numbers listed for the PowerBond by Dayco PB1186N, so this balancer replaces it.
