Looks like my alternator/water pump idler pulley is a bit worse for wear. I've been looking around for any info on what could be used as a replacement instead of an OEM part, but have come up pretty dry. (The Gates catalogue is basically useless when it comes to dimensions etc).

Has anyone successfully used another part in place of the OEM idler pulley (it looks like the same part is used on the 4AGZE and 4AGE too)? I can't replace the bearing like the idler pulley for the A/C and P/S which sucks.