Parts for your 2020 Holden Colorado-Wheel hubs

2020 Holden Colorado wheel hubs: what they do and how to look after them

Wheel hubs absolutely are fitted to the 2020 Holden Colorado (RG). That’s confirmed in the Holden/GM RG Colorado Service Manual (front suspension and driveline sections), the GM Global EPC/parts catalogue listing complete front wheel hub and bearing assemblies for MY20, and common trade catalogues from ACDelco and Timken that list hub units for 2012–2020 Colorado variants. The Colorado uses sealed bolt-on hub and bearing assemblies at the front, with the rear using hub/bearing arrangements appropriate to the axle type, there are no manual locking hubs, as front axle disconnect handles 4x4 engagement.

On this ute, the wheel hub is the bit that lets the wheel spin smoothly while keeping everything square and true. It carries the wheel studs, supports the vehicle’s weight through the bearing, keeps the rotor aligned for consistent braking, and houses the ABS tone ring/sensor interface. In the rough-and-tumble world of towing, corrugations, and the odd creek crossing, a healthy hub keeps road noise down and tyre wear even.

Because the Colorado’s hubs are sealed units, there’s no periodic greasing. Instead, regular servicing is about inspection and picking up wear early:

• Listen for a humming or growling that rises with speed or changes when gently weaving left/right.
• Check for play by rocking the wheel at 12 and 6 o’clock (with the vehicle safely lifted).
• Watch for ABS warnings, uneven tyre wear, or heat at the hub after a drive.

Replacement is straightforward for a pro: the hub assembly is swapped as a unit. Best practice is to use quality OEM-equivalent parts, clean mounting faces, protect the ABS sensor and wiring, and tighten hub bolts and axle nuts to the service manual torque specs. On reassembly, spin the wheel to confirm smooth rotation, clear any stored ABS codes, and re-torque the wheel nuts after 50–100 km. An alignment check is smart if there was significant wear or if steering felt off beforehand.

Service intervals don’t call out hub replacement by kilometres, it’s condition-based. Many last well past 100,000–200,000 km, but heavy loads, bigger tyres, deep water, and off-road punishment can shorten life. To help them along, avoid blasting the hub area with a pressure washer, keep tyres balanced, and don’t overtighten wheel nuts. If one front hub fails, the other may not be far behind on a high-kilometre vehicle, so budgeting to do both can save repeat labour.

• Tip: Always follow the Holden/GM service manual for exact procedures and torque specs.

Popular questions about 2020 Holden Colorado wheel hubs

Do all 2020 Colorado models have wheel hubs?
Yes. Both 4x2 and 4x4 variants run wheel hub and bearing assemblies at the front, and hub/bearing arrangements at the rear. The 4x4 doesn’t use manual locking hubs, front axle disconnect handles engagement, while the hub assembly remains a sealed, bolt-on unit.

How can someone tell if a Colorado hub is failing?
Common signs include a speed-related humming or rumble, play when rocking the wheel at 12 and 6 o’clock, ABS warnings, or a hub that runs noticeably hot. If the noise changes when gently weaving, that often points to a hub bearing rather than tyres or brakes.

Should both front hubs be replaced together?
It isn’t mandatory, but on high-kilometre utes it’s often sensible. If one side has worn out, the other may be close behind, and doing both can reduce downtime and duplicated labour.