Parts for your 2022 Subaru Impreza-Centre bearing

2022 Subaru Impreza centre-bearing: what it is, why it matters, and when to replace it

Yes, a centre-bearing is fitted to the 2022 Subaru Impreza (AU/NZ models with Subaru’s Symmetrical AWD). Technical references include the Subaru Service Manual (Impreza MY2017–2022, Propeller Shaft section), which details a two-piece propeller shaft supported by a centre (centre support) bearing and bracket, and Subaru’s electronic parts catalogues that list the propeller shaft assembly with an integrated centre support bearing. These sources confirm the bearing’s presence and its role in supporting the rearward driveline.

The centre-bearing sits mid-way along the Impreza’s two-piece propeller shaft, carrying the shaft and keeping it aligned under load. It tames vibration, supports the shaft’s weight, and maintains smooth, quiet delivery of torque to the rear differential. For everyday driving, that translates to less droning and fewer shudders on take-off or at motorway speeds.

On late-model Impreza, Subaru supplies the centre-bearing as part of the complete propeller shaft assembly. That’s because the bearing, rubber mount and shaft are balanced as a unit. If the bearing fails or the rubber support tears, the recommended repair is to replace the full shaft assembly. Some aftermarket options offer the bearing on its own, but fitment must maintain correct phasing and balance—otherwise new vibrations can appear.

Service-wise, there’s no regular lubrication, the bearing is sealed. During scheduled servicing or whenever a vibration complaint pops up, a quick underbody check is smart: look for cracked or perished rubber around the bearing bracket, excessive play, or contact marks. When removing the shaft, technicians should mark the flanges to keep phasing consistent, use new self-locking hardware where specified, and torque to spec from the service manual. A short road test afterwards—light throttle, coast-down, and mild acceleration—helps confirm it’s all happy.

• Common symptoms of a worn centre-bearing:
  • Droning or humming between 60–100 km/h
  • Shudder on take-off or a faint knock on throttle changes
  • Visible tearing of the rubber hanger or uneven shaft height

Most owners will never think about the centre-bearing until it complains. If the Impreza starts to buzz through the floor or feels rough under load, getting the driveline inspected early can save the rear diff bushes and avoid extra wear on the transmission mount.

Popular questions

Does the 2022 Subaru Impreza have a centre-bearing?
It does. The AWD driveline uses a two-piece propeller shaft supported by a centre (support) bearing and bracket, as described in the Subaru Service Manual for MY2017–2022 Impreza models and reflected in Subaru parts catalogues for the complete prop shaft assembly.

Can the centre-bearing be replaced on its own?
From the factory it’s supplied as part of the complete propeller shaft, and Subaru’s guidance is to replace the assembly to preserve balance and phasing. Some aftermarket suppliers sell the bearing alone, but correct installation and shaft balance are critical to avoid new vibrations.

How long should a centre-bearing last?
There’s no fixed interval. Many last well past 150,000 km, but heat, age, road conditions and driving style all play a part. If there’s driveline vibration, droning, or the rubber mount looks perished, it’s time for a closer look and likely replacement.