Serp Belt, Idler, and Tensioner Pulley Question

[Alan Peters]

I'm looking to replace these parts over the next week or so. I'm noticing some uneven wear on the belt. Should I stick with OEM motorcraft or has anyone tried a Dayco brand?

 

[Rodger Tellefson]

2001-2005 ST belt is a Gates K060865



BUT get a Gates K060860 and you will be much happier !!!!



Todd Z

And, I am much happier too.

:banana::supercool:

 

[Mrlunchbox]

Why the different part number? Is the belt smaller or something? What difference does it make in the ST? Thanks!

 

[Alan Peters]

Todd,



What about a Dayco tensioner and idler pulley? I think Gates makes these parts too?



Mrlunchbox,



The belt is a half inch shorter.

 

[Troy Micklon]

I used a Goodyear 4060860 Gatorback Poly V-Belt (payed ~$22 from amazon).

This belt is .5 inch smaller than stock.



There a lot of posts on this site about how the .5 inch smaller belt is better. So I took everyones advice. Havent had any issue with it yet after three months.

 

[Todd Z]

I used the motor craft tensioner But the aftermarkets are just as good...... Airtex, Goodyear, gates, dayco......



I prefer Gates belts, they are the only thing I run.... I find the rubber in a Dayco belt is harder and cracks easier..



I also have the .5 shorter belt for over 50K miles and 6 years....



Todd Z