Gates Timing Belt Tensioner Adjuster (Mitsubishi Evo 8/9)
The timing belt auto tensioner actuates a spring loaded lever to adjust the auto tensioner pulley to automatically adjust for belt slack as the timing belt wears over time. Replacement of this component is required whenever the timing belt is removed from your 4G63.
Always replace tensioner when replacing all timing belt components ,have been running this one for a while and is working perfect
Whenever you're going to be removing you're timing belt it would be smart if you to go on ahead and get one of these bad boys as wel!