I was searching this here but i cant find it. Some one would help me to find the part number on the Hyundai 4b11 enigine i think it called the serpentine belt wheels ?/ the metal ones. /
The EVo have a plastic ones.
I would like to upgrade it since my engine is right now in the building table and very easy to do it

Thanks ROb

 

I want to say it is on the other forum...

It was an article put out by cosworth though (if that helps you any)

 

http://www.motoiq.com/magazine_artic...uary-2010.aspx

 

COOOL thanks guys!!!!!

 

Sorry to bring this back from the dead.....

When ordering the Hyundai idler pulley as per the link above, do I order 2 of them? Are the top and bottom idler on the Evo X the same?

 

that is the general consensus, you order two. They are the same one.

Here is one of mine.



However, I went through two serp belts in like 500 miles with this setup. I am troubleshooting it this weekend. Might go back to stock pulley's so I can't personally recommend these to anyone until I look into it myself and whats going wrong.

 

What's it doing? I put mine on about 1000 miles ago and no issue. You want me to take a pic of my setup and see if anything looks sticks out different on yours?

 

I replaced my belt and added a spacer on the top idler pulley, we think that was the issue as the belt was very close to the block. I guess we will see.