Tools and Supplies
| Item | Notes |
|---|---|
| Replacement idler pulley | ~$37 |
| Replacement bolt and plate | You can re-use your old bolt and plate but it was cheap to get new |
| 15mm wrench / socket | For releasing the tensioner |
| 14mm wrench / socket | For idler pulley bolt |
| Torque wrench | |
| 2013–2019 Subaru Idler Pulley | 23770AA07A |
| 2013–2019 Subaru Idler Pulley Bolt | 23771AA04A |
| 2011–2024 Subaru Idler Pulley Cover | 23772AA050 |
Specs