Parts for your 2009 Subaru Impreza-Centre bearing

2009 Subaru Impreza centre-bearing

Based on the Subaru Factory Service Manual for the 2008–2011 Impreza/WRX (GE/GH/GR/GV series) and the Subaru OEM parts catalogue (FAST), the 2009 Subaru Impreza uses a two-piece propeller shaft with a mid‑mounted centre support bearing (often called a carrier bearing). These technical sources show the prop shaft assembly specified with a fixed centre-bearing and bracket, confirming the part is relevant and fitted on AWD Australian and New Zealand models.

On this generation Impreza, the centre-bearing supports the two-piece prop shaft, keeping it running true under load while isolating vibration and noise from the cabin. Subaru uses a two-piece shaft because of packaging and NVH control in the AWD layout, a single long shaft would be prone to vibration and angle issues over the Impreza’s wheelbase. The bearing’s rubber mount cushions driveline pulses on take-off, during gear changes, and at motorway speeds.

While the bearing itself is sealed and not serviceable, it benefits from periodic inspection. As part of servicing, a mechanic should check the carrier’s rubber for cracking or sag, ensure the bracket is tight, and look for witness marks that suggest the shaft has been running off-centre. Any oil leaks onto the rubber should be sorted—petroleum products can prematurely soften the mount.

• Common symptoms of a worn centre-bearing:
  • Shudder or rumble between 60–90 km/h, often worse under load or on overrun
  • Thump or clunk on take-off as the shaft loads up
  • Driveline vibration that doesn’t change with wheel rotation (unlike a tyre/wheel issue)

• Service and replacement tips:
  • Rule out engine/gearbox mounts and prop shaft joints first—issues can feel similar.
  • Subaru typically supplies the prop shaft as a complete assembly, quality aftermarket centre-bearing kits exist but require pressing and care to maintain shaft phasing.
  • Mark flange orientations before removal, follow FSM torque specs, and replace any self-locking nuts/bolts.
  • After refit, road test for vibration under light throttle, steady cruise, and overrun.
  • If in doubt, use a driveline specialist who can balance the shaft after bearing replacement.

Owners often choose a full prop shaft assembly for a quick, OE-style fix with minimal vibration risk, while budget-minded repairs may opt for an aftermarket carrier bearing installed by a specialist. Either way, keeping this bearing healthy protects the gearbox, diff, and joints from extra stress and keeps the Impreza smooth on Aussie and Kiwi roads.

Does a 2009 Subaru Impreza have a centre-bearing?

Yes. AWD Australian and New Zealand models run a two-piece propeller shaft supported by a centre (carrier) bearing. This is documented in the Subaru service manual and OEM parts listings for the 2008–2011 series.

What are the signs the centre-bearing needs attention?

Look for a rumble or shudder around 60–90 km/h, a thump on take-off, and a driveline vibration that isn’t linked to wheel speed. Visual checks may show a sagging or cracked rubber mount or shiny witness marks where the shaft has been contacting nearby surfaces.

Can the centre-bearing be replaced on its own?

Subaru usually supplies the complete prop shaft, but aftermarket bearings and mounts are available. Replacing just the bearing requires pressing and careful alignment to maintain shaft phasing, many workshops recommend a driveline specialist and, if needed, rebalancing to avoid new vibrations.