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Your cart is empty.The ACDelco GM Original Equipment Engine Harmonic Balancer is a GM-recommended replacement for your vehicle’s original component. It is connected to the crankshaft of your vehicle’s engine to help reduce torsional vibration and serves as a pulley for the engine accessory drive belts. This original equipment engine harmonic balancer has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
DRK Performance
August 9, 2025
Part was a simple swap onto my 6.0. It looks great and seems to work as it should. I bought to replace a worn out factory unit that was separating and rusty.
Fishnut456
July 16, 2025
It’s Genuine GM at a reasonable price. It fits and performs the same as the one it replaced, without the grove mine had worn over 318,000 miles. Would definitely purchase again.
S. Armstrong
July 5, 2025
Installed and works perfect. I only use OE parts for critical engine parts like this. Here's a tip for removing the old balancer: remove the old bolt, grind down the diameter of the flange on the bolt head until it is smaller than the inside diameter of the crank pulley, thread the old bolt back into the crank and tighten snugly, then you can use a 2 or 3 jaw puller to remove the old pulley without the puller damaging the crank threads.
Brian D.
June 23, 2025
Perfect fit, great value!!
Yogi
June 4, 2025
Great price for GM parts.
Tony Taylor
May 30, 2025
This part was an exact fit. It went on exactly as it should and works perfectly. You can tell this is a quality part. Definitely would recommend this part to anyone needing a replacement.
StevenJay
May 12, 2025
Item arrived broken/ missing chunk.Don’t look OEM original. Maybe aftermarket china parts. Did not come in original packaging.
Daniel
May 5, 2025
I needed a truck pulley on my LS3 for the type of accessory drive I’m using. This pulley fits and is the right spacing, but it does wobble a little, which is common on some of these.
mrs D.
April 17, 2025
Very good quality product and fairly priced. Exactly as advertised and fit perfectly.
Dean quincy
April 8, 2025
Great product, AC Delco on Amazon makes life a million times easier
Customer
February 14, 2025
direct replacement
Mr D
February 1, 2025
Love picking up these parts online much cheaper than dealer!
Customer
January 12, 2025
Fit perfectly as described
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