Parts for your 2017 Subaru Forester-Thrust bearing

2017 Subaru Forester thrust-bearing

Yes, a thrust bearing is fitted to the 2017 Subaru Forester. Subaru’s factory service information for the FB-series engines used in this model lists a crankshaft thrust bearing as part of the main bearing set, controlling end-float of the crank. The manual-transmission variant also specifies a clutch release bearing (often nicknamed a thrust bearing) in the clutch assembly. These details are documented in Subaru’s 2017 Forester service manuals covering Engine (FB series) and Transmission (6MT) sections.

The engine’s thrust bearing keeps the crankshaft centred front-to-rear while it’s loaded by things like clutch engagement, accessory drive loads and combustion forces. By managing axial movement, it protects the crank, connecting rods, and transmission input from misalignment and metal-to-metal contact. In everyday terms, it helps the engine spin smoothly and keeps the driveline happy under load, gear changes, and engine braking.

There’s no routine replacement interval for the engine thrust bearing, it lives inside the crankcase and is serviced only during a rebuild or when end-float is out of spec. Good oil quality and level are its best friends—fresh, correct-grade oil and on-time servicing reduce wear. During major work, technicians will check crank end-float with a dial indicator and inspect main bearings. If out of spec or if the engine has suffered oil starvation, the thrust bearing should be replaced as part of a bearing set and clearances verified.

On Foresters with the 6-speed manual, the clutch release (thrust) bearing is a wear item. If there’s noise with the clutch pedal pressed, not pressed, or both, it’s wise to inspect the release bearing and the clutch as a kit. Best practice is to replace the release bearing whenever the clutch is out. CVT models don’t use a clutch release bearing, though the CVT and engine internals do contain thrust-type bearings that are serviced only during overhaul.

• Typical symptoms to watch for:
  • Engine: metallic scuffing at idle, moving crank pulley in/out, abnormal end-float readings.
  • Manual clutch: whirring/squeal with pedal pressed, rough pedal feel, engagement chatter.

Popular questions

Does every 2017 Forester have a thrust bearing?
Yes. All engines use a crankshaft thrust bearing. Manual models also use a clutch release (thrust) bearing, CVT models do not have that clutch bearing.

What are the signs the thrust bearing is worn?
Engine thrust wear can show as end-float out of spec, a scraping noise at idle, or visible crank pulley in–out movement. A failing clutch release bearing often whirs or squeals when the pedal is pressed and can feel rough through the pedal.

When should it be replaced?
The engine thrust bearing is replaced during an engine rebuild or if end-float fails specification. The clutch release bearing should be replaced any time the clutch is removed, typically with a new clutch kit to save labour and ensure smooth operation.