Dayco PBO81117SC10 harmonic balancer for the 2011-2017 Chevrolet Caprice and other vehicles damps crankshaft vibration and carries the engine's belt pulleys. This Dayco harmonic balancer, also called an engine harmonic balancer, mounts on the crankshaft.
- Two serpentine pulleys built into the balancer
- Steel outer ring
- Timing marks on the balancer
- Neutral balance with no counterweight
Quick facts
- Part: Dayco PBO81117SC10 harmonic balancer
- Also called: engine harmonic balancer
- Fits: 2011-2017 Chevrolet Caprice and other vehicles
- Material: Steel outer ring
- Condition: New
A cracked outer ring, timing marks that have shifted or a wobbling belt pulley can mean the balancer is worn. Before you replace it, rule out a worn belt, tensioner or accessory pulley, since those can also cause belt noise and vibration; if the balancer is the cause, this one replaces it. Each engine takes one, mounted on the crankshaft.
Fits
Vehicles it fits include the 2011 Chevrolet Caprice and the 2012-2017 Caprice V8-6.0L, the 2014-2017 Chevrolet SS, and the 1997-2005 Chevrolet Corvette, the 2006-2007 Corvette V8-6.0L and the 2008-2013 Corvette V8-6.2L. For a car not named here, look up its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Overall outside diameter: 209.00 mm (8.229 in)
- Crank bore: 37.60 mm (1.481 in)
- Nose outside diameter: 54.00 mm (2.126 in)
- Ring width: 68.48 mm (2.697 in)
- Overall width: 78.75 mm (3.101 in)
- Bolt holes: 9
- Serpentine pulley 1 outside diameter: 180.000 mm (7.087 in)
- Serpentine pulley 2 outside diameter: 205.700 mm (8.099 in)
Build and materials
- Outer ring material: Steel
- Condition: New
In the box
One harmonic balancer and installation instructions. Mounting hardware, a Woodruff key and a crank trigger/exciter plate are not included, so plan on new bolts, since the old ones may not be reusable.
Installation notes
- Installation instructions come with the part.
Interchange: 102120
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
Is this Corvette harmonic balancer right for the 1997-2013 Chevrolet Corvette?
Yes. Dayco PBO81117SC10 fits the 1997-2005 Corvette, the 2006-2007 Corvette V8-6.0L and the 2008-2013 Corvette V8-6.2L.
Does the Dayco PBO81117SC10 come with bolts or a Woodruff key?
No. This Dayco PBO81117SC10 comes without hardware, a Woodruff key and a crank trigger/exciter plate. It does come with installation instructions.
What is the crank bore size on this harmonic balancer?
The crank bore is 37.60 mm (1.481 in). The overall outside diameter is 209.00 mm (8.229 in) and the nose outside diameter is 54.00 mm (2.126 in).
What should I look for on the steel outer ring of a harmonic balancer when the engine is off and cool?
Look for cracks in the outer ring, a ring that looks shifted or separated, and timing marks that no longer line up. Any of these can mean wear; a shop can check further.
How many belt pulleys does Dayco PBO81117SC10 have, and what sizes are they?
It has two serpentine pulleys. Pulley 1 is 180.000 mm (7.087 in) and pulley 2 is 205.700 mm (8.099 in) in outside diameter.
Reviews
No reviews yet — be the first to review this product.
Write a ReviewWrite a Review