Parts for your 2007 Subaru Forester-Thrust bearing

2007 Subaru Forester thrust-bearing — what it does and when to replace it

Based on the Subaru Factory Service Manual (2007 Forester, Clutch System and Engine sections), the Subaru FAST electronic parts catalogue, and major clutch manufacturers’ catalogues used in Australia and New Zealand, the 2007 Subaru Forester is fitted with thrust bearings in two contexts: a clutch release (thrust/throwout) bearing on manual-transmission models, and a crankshaft thrust bearing integrated into the engine’s main bearings. Automatic models don’t have a serviceable clutch release bearing, though their transmissions do contain internal thrust bearings that aren’t routine service items.

On a manual 2007 Forester, the clutch release bearing sits on the gearbox input shaft and pushes against the pressure plate’s diaphragm when the driver presses the pedal. Its job is to convert that pedal force into smooth, axial thrust to disengage the clutch without grumbling or grabbing. The factory literature notes it as a normal wear component and clutch kit makers list it alongside the pressure plate and friction disc, confirming it’s expected to be replaced whenever the clutch is renewed.

As for the engine, the crankshaft thrust bearing controls end-float (axial movement). It’s part of the main bearing set and isn’t a periodic service item, it’s inspected and replaced during engine overhaul only. Excessive end-float can present as clutch engagement issues or knocking, but it’s rare unless there’s been lubrication problems or severe loading.

For owners of manual Foresters, best practice in Aus/NZ workshops is to replace the release bearing any time the clutch is out. The Subaru FSM outlines light, correct-spec lubrication on the input shaft splines, release fork pivot and bearing guide—never over-grease and never contaminate the bearing face or clutch disc. If the bearing is noisy, gritty or has play, it’s due. Most technicians also replace the pilot bearing and inspect the fork and guide tube for wear at the same time. If an automatic Forester has driveline noises, chasing a “thrust bearing” at the bellhousing isn’t applicable, diagnostic paths focus on torque converter, flexplate and internal transmission components.

• Typical symptoms of a failing release bearing: chirping or squeal with the clutch pedal depressed, roughness felt in the pedal, and quietness returning when the pedal is released.
• When fitting a new bearing: use the correct orientation, apply only the specified moly grease on contact points, and ensure the clutch kit is compatible with the Forester’s VIN/engine code.

Popular questions about 2007 Subaru Forester thrust-bearing

Does a 2007 Subaru Forester have a thrust bearing?

Yes. Manual models use a clutch release (thrust/throwout) bearing, and the engine has an internal crankshaft thrust bearing. Automatic models don’t have a serviceable clutch release bearing, though the auto transmission contains internal thrust elements not serviced during routine maintenance.

What are the signs the release (thrust) bearing is failing on a manual Forester?

Common signs include a chirp, squeal or rumble when the clutch pedal is pressed, a rough or pulsing feel in the pedal, and the noise disappearing when the pedal is released. If ignored, it can progress to poor disengagement and accelerated wear of the pressure plate fingers.

When should the thrust/throwout bearing be replaced?

Replace it any time the clutch is out—most quality clutch kits for the 2007 Forester include a new release bearing. If it’s noisy or rough, don’t wait, replacing it requires removing the gearbox, so bundling it with a clutch replacement saves labour. It’s also smart to renew the pilot bearing and inspect the fork, pivot and guide tube at the same time.