Parts for your 2012 Holden Colorado-Wheel hubs

2012 Holden Colorado Wheel Hubs: What They Do and When to Replace Them

Technical sources confirm the 2012 Holden Colorado (RG) absolutely uses wheel hubs. The Holden Colorado RG Workshop Manual details a bolt‑on, sealed front wheel hub and bearing assembly mounted to the steering knuckle, with an integrated ABS encoder. The GM Global Electronic Parts Catalogue and ACDelco/GM Genuine Parts listings also show complete front hub assemblies for both 4x2 and 4x4 variants. At the rear, the live axle uses a hub flange and pressed bearing arrangement. So yes—wheel hubs are very much relevant on this ute.

On a 2012 Colorado, the wheel hub’s job is to keep the wheel and tyre spinning smoothly and true while handling braking and cornering loads. Up front, the unitised hub also carries the wheel studs, supports the ABS tone ring/sensor, and on 4x4 models transfers drive from the CV shaft via splines. Because the front hub is a sealed bearing assembly, there’s no greasing—just inspect and replace when it’s worn.

During routine servicing (think every 10,000–15,000 km or when rotating tyres and doing brakes), a quick hub check pays off. Spin and listen for a low growl or rumble, check for play at the 12 and 6 o’clock positions, and look for ABS warning lights or uneven tyre wear. Any free play, noise that increases with road speed, or a pulsing ABS fault suggests a crook hub.

When replacement time comes on the front, the assembly bolts off the knuckle. It’s smart to: clean the mating faces, lightly anti‑seize the hub pilot, and use new hub bolts/axle nut if the manual calls them one‑time‑use. Always torque the axle nut and hub bolts to spec—over‑ or under‑torque can kill a new bearing fast. Keep the ABS sensor and harness clean and out of harm’s way, and don’t hammer wheel studs—press them if needed.

Rear end? The Colorado’s semi‑floating axle uses a pressed bearing and seal behind the hub flange. You’ll typically need a press and new retainer/seal