Parts for your 2009 Subaru Legacy-Thrust bearing

2009 Subaru Legacy thrust-bearing: what it is, why it’s there, and how to look after it

Yes, a thrust-bearing is used on the 2009 Subaru Legacy. Subaru’s Factory Service Manual for the 2009 Legacy/Outback (Engine section for EJ-series and EZ-series) specifies crankshaft end play checks and identifies the thrust main bearing within the crankshaft main bearing set. The Subaru Genuine Parts Catalogue for 2009 models also lists the thrust-bearing as part of the main-bearing assembly. These sources confirm the part is fitted and serviceable on 2009 Legacy engines.

On these Subarus, the thrust-bearing lives inside the engine as part of the main bearings that support the crankshaft. Its job is to control the crankshaft’s fore-and-aft movement (end float). Think of it as a sideways stop that keeps the crank neatly centred while the clutch is pressed (manuals) or when axial loads act through the drivetrain (autos). Without a healthy thrust-bearing, the crank can “walk”, which risks oiling issues, hard-to-select gears, clutch drag, and accelerated wear inside the block.

For owners, it’s not a regular replacement item like a filter, but it’s absolutely worth keeping on the radar. Smart servicing for a 2009 Legacy includes good oil discipline (quality oil, right viscosity, on-time changes) and avoiding heavy clutch habits or overly aggressive aftermarket pressure plates that can spike axial loads. Any time the clutch is out or the engine’s apart, a technician should measure crank end float against the factory spec and inspect the thrust faces for scoring or uneven wear.

• Common clues of thrust-bearing wear:
  • Clutch engagement becomes inconsistent or the car creeps with the pedal down
  • Noticeable fore–aft movement at the crank pulley with the clutch pressed
  • Metallic rub or oil pressure oddities at hot idle

Replacement is an engine-out, bottom-end job: sump off, caps off, main bearings assessed and sized, crank inspected and measured, and clearances set per the Subaru manual. If end float is out of spec, replacing just the thrust shell without confirming crank and housing bore condition is false economy. A workshop that follows the Subaru service procedures, checks clearances properly, and sticks with OE-quality bearings is the right choice.

Not to be confused with the clutch release (throwout) bearing, the thrust-bearing is an engine main bearing component. Different part, different symptoms, different repair path—but critical for long engine life all the same.

• Popular questions

Does a 2009 Subaru Legacy actually have a thrust-bearing?
Yes. It’s integrated into the engine’s main bearing set to control crankshaft end float. Subaru’s 2009 service information includes crank end play inspection and identifies the thrust main bearing, and the genuine parts catalogue lists the thrust-bearing within the main-bearing kit for both four- and six-cylinder variants.

What are the signs the thrust-bearing is on its way out?
Look for clutch drag or inconsistent engagement, a slight fore–aft movement at the crank pulley when the clutch is pressed, or unusual noises and oil pressure behaviour at hot idle. If anything feels off, have a technician measure crank end float and inspect bearing surfaces during related work (like a clutch job).

Can the thrust-bearing be replaced without pulling the engine?
Typically no. Proper replacement and measurement require engine removal, sump and bearing cap removal, and careful inspection of the crank and block. A shortcut risks repeat issues. A workshop following the Subaru manual will set clearances correctly and verify the crank and housing bores are within spec.