Parts for your 2008 Subaru Impreza-Wheel bearings

2008 Subaru Impreza Wheel Bearings

Based on Subaru factory service information and OEM parts catalogues for the 2008 Subaru Impreza, wheel bearings are absolutely fitted and relevant to this model. The Impreza of this era uses sealed, unitised wheel bearings—either as a bolt-in hub assembly or a press-fit cartridge in the knuckle, depending on variant. They’re a core safety and driveline component, not an optional extra.

Wheel bearings let each wheel spin smoothly with minimal friction while supporting the vehicle’s weight and handling cornering loads. On the 2008 Impreza—especially with AWD—bearings also help keep ABS and stability control sensors reading accurately. Because they’re sealed units, they’re designed to keep water and road grit out and lubricant in, delivering quiet operation and steady tyre wear when everything’s healthy.

There’s no routine greasing on these bearings, so maintenance is mostly about inspection and timely replacement. At regular services, a good workshop will road-test for a humming or growling noise that rises with speed, then check for play by rocking the wheel at the 12 and 6 o’clock positions. They’ll also spin the wheel and listen near the hub, and look for any ABS warning lights that might hint at a failing tone ring or sensor interference.

• Common symptoms: speed-related hum, noise changing when turning, ABS light on, heat at the hub after a drive, or noticeable play/clunks.
• Driving conditions matter: rough roads, water crossings, and coastal salt can shorten bearing life.

When replacement’s due, the sealed design means swapping the bearing or complete hub assembly rather than repacking. Quality matters—sticking with reputable brands keeps noise down and longevity up. The axle/hub nut should be replaced and torqued to factory spec, then staked as specified. Avoid using a rattle gun to “pull” components together