M156 Billet Ider Pulley Kits in Stock
UPD units are made out of billet aluminum, are anodized and used ZZ rated bearing. And our price point is lower.
FYI the factory ribbed idler on the bottom has been replaced by a smooth idler with an updated part number from the factory, so when you receive a smooth idler please don't get confused we have sent you the billet smooth idler in accordance with the updated part number.




The Best of Mercedes & AMG
FYI the factory ribbed idler on the bottom has been replaced by a smooth idler with an updated part number from the factory, so when you receive a smooth idler please don't get confused we have sent you the billet smooth idler in accordance with the updated part number.
We have been in business longer VRP and these pulleys were introduced before Weistec was offering them.
All VRP does is copy item from other vendors
Last edited by shardul; Sep 7, 2018 at 10:11 AM.
How do we know if we have the ribbed pulley without looking at it?
and OP can you post up the torque specs into the first post so we dont have to scroll through the whole thread to look for the specs, thanks and i am waiting for your kit in the mail. in return i can take some macro photos if you want
Original pulleys with 38k miles. Some had a little play in them. Good preventative maintenance I suppose.
Tensioner pulley doing its thing.
https://youtu.be/Fu0wBP5cBlM
You are the man! It took me about 4 hours of cursing to get the fan out of there without disconnecting hoses and 2 hours to get it wedged back in. I couldn't get the pulley off the tensioner with assy on the car so I removed the tensioner unit first. The tensioner pulley bolt and keeper washer were a little bent and they didnt sell just the parts by themselves, so I ended up having to get a new belt tensioner assy to install. In retrospect I should have just disconnected the two upper radiator hoses that the fan surround kept getting stuck on when I was trying to pull it out of the top and put in new coolant after, but I was trying to not make a mess. In the long run it would have been more efficent. But some people are able to get it out fairly easy so YMMV.
Last edited by kavik; Oct 1, 2018 at 05:52 PM.









