Review on 🔧 ACDelco GM Original Equipment 89017309 Drive Belt Tensioner: Efficient Performance and Reliability by Anthony Wilson

- Differentiates my truck from the one I bought from my local auto parts store. I will only use ACDelco parts for future purchases. I checked the part number on the ACDelco website and over the phone. My old one was almost a year old and noisy. Installing this tensioner and controlling the belt deflection (between the pulleys) was absolutely perfect and went silent. Made a difference in the generator dashboard. Show volts where they should be. - Installation is very easy, 10-15 minutes maximum. - I would check your old belt for damage and also check other pulleys for play or noise. - Great product and would buy again! Hope that helps.