Parts for your 2015 Subaru Outback-Thrust bearing

2015 Subaru Outback Thrust Bearing

Per Subaru’s Factory Service Manual for the 2015 Outback/Legacy (FB-series and EZ-series engine sections) and the Subaru Electronic Parts Catalogue, every 2015 Subaru Outback engine uses a crankshaft thrust bearing built into the main bearing set to control end float. The CVT transmissions (TR580/TR690) also contain internal thrust bearings, though they’re not service items. There isn’t a separate “clutch thrust bearing” on CVT models, manual-trans Outback diesels use a clutch release (throw-out) bearing, which is a different part. So, a thrust bearing is absolutely relevant to the 2015 Outback—primarily as the engine’s crankshaft thrust bearing.

On the 2015 Outback, the thrust bearing’s job is to keep the crankshaft from walking forwards and backwards under axial loads—think clutch actuation on manual models, converter/pump loads on CVTs, and the natural push-pull from the drivetrain and accessory belts. Subaru integrates the thrust faces into a specific main bearing position, and when it’s healthy, the engine runs smooth, oil clearances are maintained, and gear changes feel consistent.

It’s not a routine service item. The best “maintenance” is boring but effective: stick to the Subaru service schedule, use the correct spec oil for local climate, and change it on time. Clean oil and solid oil pressure are what keep all bottom-end bearings—including the thrust bearing—happy. Workshops typically inspect or replace the thrust bearing only during an engine rebuild, crankshaft-out job, or when end float is clearly out of spec.

Flags that say “check the thrust bearing” include:

• Noticeable crank pulley movement in-and-out or a clunk when the clutch is pressed (manual)
• Metallic glitter in the oil or filter, low oil pressure warnings, or bottom-end knock
• Inconsistent idle or sudden changes in clutch engagement feel (manual)

Replacement is a precision job: the engine comes out, the case halves are split, and the main bearings are sized to the block and crank markings as Subaru specifies. End float must be measured and verified with proper tooling. Skipping measurements or mixing bearing grades is a fast track to repeat failures. On manual models, don’t confuse this with the clutch release bearing—if the noise changes only when the clutch pedal is pressed, a release bearing or clutch issue may be the real culprit. Quality oil, timely services, and using genuine-spec parts go a long way to keeping the Outback’s thrust bearing trouble-free for big kilometres.

Popular questions about 2015 Subaru Outback thrust bearings

Does a 2015 Outback have a thrust bearing?
Yes. All 2015 Outback engines use a crankshaft thrust bearing integrated into the main bearings. CVT models don’t have a separate clutch “thrust” bearing, manual diesel variants have a clutch release (throw-out) bearing, which is a different part.

When should the thrust bearing be replaced?
Only during engine repairs or a rebuild, or when crank end float is out of spec. It’s not a scheduled service item. If there’s axial knock, metal in the oil, or odd behaviour when loading/unloading the drivetrain, a workshop should measure end float and inspect.

What’s the difference between a thrust bearing and a throw-out bearing?
The thrust bearing controls the crankshaft’s axial movement inside the engine. The throw-out (release) bearing is part of the clutch mechanism on manual cars and only operates when the clutch pedal is pressed. Different parts, different jobs.