Parts for your 2008 Subaru Exiga-Wheel hubs

2008 Subaru Exiga Wheel Hubs — What They Do and When to Replace Them

Yes, the 2008 Subaru Exiga runs wheel hubs at each corner. This isn’t optional kit — it’s fundamental hardware. Technical references include Subaru’s Global Service Manual for the Exiga YA series (Front Axle – Hub Unit Bearing, Rear Axle – Hub Unit Bearing) and the Subaru FAST electronic parts catalogue, both of which list bolt-on hub unit bearings for the model. Major bearing manufacturers’ application catalogues also specify hub assemblies for the 2008 Exiga, confirming fitment across AWD trims.

On the Exiga, the wheel hub is a sealed, bolt-on unit that carries the wheel and brake rotor, supports vehicle weight, and lets the wheel spin freely on the bearing. It also typically integrates the ABS tone ring or encoder for the wheel-speed sensor. Being sealed, it’s a no-grease, no-adjust item — once the bearing wears, the whole hub assembly is replaced.

What does that mean for servicing? It’s mostly about inspection and good installation practice. During routine services, a tech will check for roughness or rumbling while spinning the wheel, listen for droning that changes with speed, and feel for play at the 12-and-6 o’clock positions. Any free play, gritty feel, or a cyclic growl that gets louder when loading one side through a corner points to a tired hub. An ABS warning light from a damaged encoder or sensor ring can be another clue.

When it’s time to replace, sticking to quality hub units pays off. On the Exiga, hubs are pressed and sealed at the factory, so there’s no rebuilding — it’s a remove-and-refit job. Key tips:

• Clean the knuckle bore and hub face so the new unit sits flush, a light anti-seize on the mating face helps future removal.
• Follow factory torque specs for the axle nut and hub bolts — over- or under-torque shortens bearing life.
• Plug in and route the ABS lead correctly to avoid rub-through.
• Use correct wheel-nut torque in a star pattern to prevent rotor and hub distortion.

How long do they last? With decent roads and tyres, well over 100,000 km is common. Big potholes, curb strikes, or pressure-washing aimed at the hub can shorten life. It’s not mandatory to replace hubs in pairs, but if kilometres are high and one side’s noisy, many owners do both fronts or both rears for peace of mind.

Popular questions about 2008 Subaru Exiga wheel hubs

Does the 2008 Subaru Exiga use wheel hubs?
Yes. Subaru’s own service literature (Exiga YA series, Hub Unit Bearing sections) and the FAST parts catalogue specify bolt-on hub unit bearings front and rear. Every 2008 Exiga variant uses them.

How long do Exiga wheel hubs typically last?
Many see 100,000–200,000 km or more, depending on road conditions, tyre quality, and driving style. Impacts, poor torqueing, or water intrusion can bring that down.

What are the tell-tale signs a hub needs replacing?
A speed-dependent humming or growl, wheel play, ABS warnings, uneven tyre wear, or rumbling that gets louder when cornering on one side are common signs. A quick on-hoist spin and play check will usually confirm it.