Subaru OEM Long Bolt for Small Idler Pulley

This the bolt that attaches the small idler pulley for the timing belt on the Subaru EJ series engines. From 2004+ the small idler pulley was re-designed to incorporate 2 bearings instead of 1. This vastly improved the small idler pulley's reliability, but it requires a longer bolt.

If you are upgrading the small idler pulley on your 2002-2003 WRX to the newer 2004+ small idler, pulley, this is the bolt that you will need to make that work.