Parts for your 2007 Subaru Forester-Starter motor

2007 Subaru Forester Starter Motor

Technical sources confirm the 2007 Subaru Forester is fitted with a conventional electric starter motor. The Subaru Forester (SG, 2005–2008) Factory Service Manual “Starting System—Starter” section specifies a Denso reduction-type starter and outlines testing/removal. The Subaru FAST electronic parts catalogue lists a starter motor assembly for 2007 Forester EJ25 models, and the Haynes Repair Manual for Subaru Forester 2003–2008 includes service steps for the starter. So yes—this part is relevant and used on the 2007 Forester.

The starter motor’s job is straightforward: it cranks the EJ25 engine fast enough to draw in air–fuel and fire up. Turn the key (or twist the barrel) and the solenoid on the starter pushes the pinion into the flywheel ring gear, then the motor spins to start the engine. Once running, the pinion retracts and the alternator takes over. It’s a tough little unit, but like any hard-working component it can wear, especially the solenoid contacts and the brushes.

For easy ownership, they’ll appreciate a few care tips. A strong battery is the starter’s best mate—low voltage cooks contacts and makes the motor labour. Keep battery terminals and the main starter cable/earth strap clean and tight. If cranking slows when hot, consider heat soak: check the cable condition, shielding, and that the engine earths are in good nick. Oil leaks from rocker covers can also grime up the area—fix leaks before they find the starter.

Replacement on a 2007 Forester is a solid DIY for confident home mechanics, but a workshop is a comfy option. Disconnect the negative battery terminal first. Access is usually easiest from up top by removing the airbox/snorkel, then unplug the small “S” terminal, remove the main “B” cable nut, and undo the two mounting bolts at the bellhousing. Refit in reverse, making sure wiring is routed clear of the exhaust and tightened to factory spec in the service manual. If the motor only clicks, a solenoid contact and plunger kit can sometimes revive it without a full replacement.

• Common signs: single click and no crank, slow cranking, intermittent no-start, or a grinding noise on engagement.
• Service interval: no set schedule—inspect during routine servicing, particularly after 150,000–200,000 km or if symptoms appear.

What are the signs the starter motor is failing on a 2007 Forester?

Listen for a single click with no cranking, slow or laboured cranking, intermittent starts, or a grinding sound. First check the battery and cables—if those are healthy, the solenoid contacts, brushes, or the motor itself may be due.

Heat-related no-starts after a hot soak are common as cables age, improving earths and replacing tired contacts often helps.

Can the starter motor be replaced at home?

Yes, with basic tools and care. Disconnect the battery, remove the intake snorkel/airbox for access, unplug the wiring, and undo the two mounting bolts. If in doubt about torque specs or routing, follow the factory service manual. Many owners opt to rebuild with new solenoid contacts if the motor itself is sound.

How long should a starter motor last?

On a well-maintained 2007 Forester, starters often see 150,000–250,000 km. Frequent short trips, weak batteries, or corroded cables shorten lifespan. Keeping the electrical system healthy and addressing oil leaks nearby gives the starter an easier life.