Serpentine belt pully
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Joined: May 2016
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From: Tennessee
Serpentine belt pully
I have tried searching for a few days so if I just did not search in the right place my apologies. I have some sound coming from my idler pulley/pullies. I know the one between the crank and power steering can be replaced, but is there a part number for just the pully on the tensioner instead of having to replace the belt tensioner in entirety? I wanted to change both pullies but have had no luck in finding a part for the tensioner pully.
Thanks for the assistance.
Thanks for the assistance.
Melting Slicks
Joined: Sep 2021
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Thread Starter
Advanced
Joined: May 2016
Posts: 74
Likes: 9
From: Tennessee
Not sure how I found it but I found a post from 7 years ago and all of these are supposed to be options to replace the pulley on the tensioner.
DORMAN Part # 419604
FOUR SEASONS Part # 45996
GATES Part # 38008
HAYDEN Part # 5996
DAYCO Part # 89015
ACDELCO Part # 1540486
Going back with GM# 12564401 for the idler.
DORMAN Part # 419604
FOUR SEASONS Part # 45996
GATES Part # 38008
HAYDEN Part # 5996
DAYCO Part # 89015
ACDELCO Part # 1540486
Going back with GM# 12564401 for the idler.
Melting Slicks
Joined: Aug 2014
Posts: 2,470
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From: East Windsor NJ
Race Director
Joined: Oct 2004
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If you, or anyone else, have spilled antifreeze on the belts, they'll never stop squealing. I'd try the new belts first. I have 23 years/131,000 miles on my OEM tensioners. A couple years ago, after a thermostat change (NOTE!! It's virtually impossible to NOT spill antifreeze on your belts doing the T-stat change! So now I remove both belts when changing a T-stat), even though I drained the radiator first, I buttoned up the T-stat housing, refilled the coolant, and started the car. My God, sounded like a flock of blackbirds heading South for the Winter, all under my hood!! I reasoned that there was no chirping before the stat change, so the tensioners couldn't have suddenly worn out while being parked! So I pulled the belts (A/C is a BITCH!!), and checked the tensioners. The bearings were nice and smooth, felt almost like new. When the belts came in, I installed them both (A/C was STILL a BITCH!!), and-PRESTO-No more chirping. YMMV, but I think many tensioners have been needlessly changed, when it was actually the belts themselves. I tried belt dressing, brake parts cleaner, nothing worked.....Except new belts!!!
