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, many owners leave this to a workshop. After any hub work, a short road test to check for noise, ABS operation, and steering feel is a must. Quality parts and correct torque go a long way to keeping this ute quiet and tidy on the highway and in the bush.

• Common symptoms: humming or droning with speed, ABS light, steering vibration, wheel play, uneven tyre wear.
• Helpful tips: inspect after deep water crossings, recheck wheel nut torque after 50–100 km, and align if you’ve had front‑end components off.

FAQs

Do 2012 Holden Colorados have manual locking hubs?
No. The RG Colorado uses fixed front hubs with shift‑on‑the‑fly 4x4 and a front axle disconnect system, so there are no manual locking hubs from factory. Some aftermarket kits exist, but they require modifications and aren’t necessary for normal use.

Can the front hub bearing be serviced, or does it need full replacement?
The front is a sealed, unitised hub and bearing assembly. If it’s noisy or has play, the whole unit is replaced. The rear bearing on the live axle can be replaced separately with a press, along with the retainer and seal.

How long do wheel hubs typically last on a Colorado?
Many last well past 120,000–200,000 km, but heavy loads, corrugations, water crossings, and bigger tyres can shorten lifespan. Regular checks during tyre rotations and brake services help catch issues early.