View Full Version : Idler Pulleys......

01-31-2005, 06:47 PM

I went to autozone and got a IDLER pulley, STEEL, part number 45979, well.... here was the thing... it seemed narrower than the stock pulley... i popped it in... and i ran the engine and noticed that there was some part or the belt that wasnt touching the surface of the pulley.. i tried to tightened it, thinking maybe it wasnt tight enough... and same thing... well... i take it off and bam, the whole thing breaks off... well were the screw threads in, were the ilder pulley sits into, it broke off, well now i gotta wait until tommorow morning to head to the junkyard to get the new idler tensioner arm.

Well the question is, does anybody else know which part number from DAYCO will fit? Im going to return the AUTOZONE one because it looks too cheap, and go for a DAYCO which is the same price but i heard is better...thanx...

01-31-2005, 08:19 PM
I got the Dayco 89007 from Kragen. It's a little narrow too, but I've been running on it for a few thousand miles now, and haven't seen any wear on the belt. I used this pulley on all three spots. They make an interesting whine noise.

01-31-2005, 08:35 PM
The offset is important, too.
see photo

02-01-2005, 02:16 PM
I bought the "Wazee" pulleys that are avail. on E-bay all the time. They were WIDER than the belt. Dunno if they are wide though for a 10 rib, but they are wider than my stock ones were.




02-01-2005, 03:17 PM
Dayco #89016 fits the stock belt just fine. It's a little larger in diameter than one of the pullies but works fine. You can't use the dust cover that comes with the stock pulley on this Dayco pulley unless you use a couple washers to hold the dust cover away from the bearing. The dust cover will rub on the pulley if you don't shim it out.

See this thread: