Parts for your 2019 Holden Colorado-Rack boots

2019 Holden Colorado rack boots: what they do and how to look after them

Rack boots are absolutely used on the 2019 Holden Colorado. Technical sources including the Holden/GM RG Colorado Service Manual (Steering – Rack and Pinion), the GM Microcat EPC (listing “steering gear boot/bellows” for MY17–MY20 RG), and parts catalogues from ACDelco and Gates all specify bellows-style rack boots fitted to the steering rack on both sides of the vehicle. That makes rack boots directly relevant to any 2019 Colorado service or repair.

On the Colorado’s rack-and-pinion steering, the rack boots (also called bellows) shield the inner tie-rod joints and the rack bar from water, mud, sand, and road grit, while helping retain the correct lubrication inside. For a ute that often sees job sites, corrugations, and the odd beach run, those flexible boots are the first line of defence against contamination that can chew out a good steering rack well before its time.

Because they live down low and cop plenty of spray, rack boots can crack, split or perish with age, UV, and exposure to salt and mud. Once a boot is torn, grit and moisture make their way into the inner tie-rod ball socket and along the rack bar, which can lead to stiffness, play in the steering, or a notchy feel on turn-in. If you find power steering fluid pooled inside a boot, that’s a red flag for an internal rack seal leak, not just a boot issue.

Smart servicing for a 2019 Holden Colorado includes a visual check of both rack boots at each service interval (or after heavy off-road work and water crossings). Look for cracking at the bellows folds, loose or rusty clamps, oil inside the boot, or any sign the boot has slipped off its seat. Avoid blasting them with a pressure washer, and keep harsh degreasers away from the rubber. If a boot is damaged, replace it promptly and use proper OE-style band clamps rather than cable ties.

• Signs a boot needs replacing: visible splits, perished rubber, oil weeping into the boot, or dirt tracked under the clamps.
• Replacement tips: mark the tie-rod end and jam nut, count turns on removal, fit the new boot with correct clamps, then book in for a wheel alignment to set toe properly.

If one side has failed from age, it’s often worth doing both. Use quality boots that match OE fit and material, and have a technician check inner tie-rod play while the old boot is off. That way, the Colorado’s steering stays tight, light, and ready for the next mission.

Popular questions about 2019 Holden Colorado rack boots

Does a 2019 Holden Colorado have rack boots?
The 2019 Colorado runs a rack-and-pinion steering gear with bellows-style rack boots on each side. They’re factory-fitted to protect the inner tie rods and rack from grit and moisture.

How often should rack boots be replaced?
There’s no fixed kilometre interval. Instead, inspect them at every service and after beach or muddy work. Replace them as soon as you spot splits, perishing, or oil inside the boot.

Do you need a wheel alignment after changing rack boots?
Yes. Replacing a boot means removing the outer tie-rod end. Even if you count the turns carefully, a proper alignment is the best way to ensure the Colorado tracks straight and preserves tyre life.