Parts for your 2009 Subaru Forester-Wheel bearings

2009 Subaru Forester wheel bearings: what they do and when to replace them

Wheel bearings are absolutely used on the 2009 Subaru Forester (SH). Subaru’s factory service manual for the SH-series details “hub unit bearings” at both the front and rear, and the Subaru Genuine Parts catalogue lists complete hub-and-bearing assemblies for this model. Aftermarket catalogues from major bearing manufacturers also specify unitised hub bearings for the 2009 Forester, confirming they’re standard kit on this vehicle.

On this Forester, the wheel bearings are a sealed, unitised hub assembly. Their job is to let the wheel and hub spin smoothly while carrying the vehicle’s weight, cornering loads and braking forces. They also maintain precise alignment for the ABS/traction control tone ring, so a crook bearing can turn into ABS warnings or dodgy wheel speed readings. Because they’re sealed and preloaded from the factory, they’re quiet and low-maintenance when healthy.

There’s no regular greasing on these, servicing is about inspection. During routine services, a quick road test for humming, a spin-and-feel check with the car safely lifted, and a play check at 12-and-6 o’clock can spot wear early. Pick up bearing issues before they heat up, chew out tyres or start upsetting ABS.

• Tell-tale signs include a droning or humming that grows with road speed.
• Growl that changes when turning (loads the suspect corner).
• Noticeable play at the wheel or vague steering feel.
• ABS light or intermittent traction control behaviour.
• Heat at the hub or uneven tyre wear.

Replacement on the 2009 Forester is typically the full hub unit, not just an inner bearing race. Front and rear are bolt-in assemblies, but corrosion can make them stubborn. Use quality OEM or reputable brands, replace the axle nut where specified, and follow Subaru torque specs. A wheel alignment check after front hub replacement is a smart move to keep tyres happy. Expect life to vary with use, big potholes, off-road water crossings, oversized tyres or lift kits can shorten bearing life, while careful driving often sees them run well past 100,000 kilometres.

Prevention tips? Don’t blast the hub area with a pressure washer, torque wheel nuts properly, avoid hard kerb hits, and keep an ear out for new noises after tyre changes or off-road weekends.

Popular questions

What are common signs a 2009 Subaru Forester wheel bearing is failing?

Most owners notice a steady hum or drone that rises with speed, often getting louder when you load that corner in a turn. You might also feel slight vibration, detect play when rocking the wheel at 12-and-6, or find the hub running hotter than the others. If the ABS tone ring signal is affected, you can see an ABS light pop up as well.

Left too long, a worn bearing can chew out tyres and risk further damage, so it’s worth getting onto it early.

How long do the wheel bearings last on a 2009 Forester?

Plenty of SH Foresters run their original hub bearings well past 100,000 km. Life depends on use: repeated potholes, beach work, river crossings, big tyres or wheel spacers can shorten lifespan, while gentle commuting and good tyre care help them last. Regular inspection during services helps catch wear before it becomes noisy or unsafe.

Do I need a wheel alignment after replacing a wheel bearing?

It’s a good idea, especially if you’ve done a front hub. The hub locates the wheel and brake assembly, and any disturbance in the strut-to-knuckle area or uneven wear from a failing bearing can nudge alignment out. A post-repair alignment keeps steering straight and protects your tyres.