Parts for your 2006 Toyota Highlander-Rack boots

2006 Toyota Highlander/Kluger rackboots: what they do and when to replace them

Rackboots are absolutely used on the 2006 Toyota Highlander (sold as Kluger in Australia and New Zealand). Toyota’s Factory Service Manual for the 2004–2007 Highlander/Kluger steering system specifies bellows-type “Boot, Steering Rack” on the rack-and-pinion assembly, and the Toyota Electronic Parts Catalogue lists the rackboot as a service part for MCU2# models. These technical sources confirm the part is relevant and fitted from factory.

On this model, the rackboots sit over the inner tie rods at each end of the steering rack. Their job is to keep dust, water, and road grit out of the rack-and-pinion and to help retain the correct lubrication at the inner tie rod joints. When a boot splits or slips its clamp, contaminants can chew out the inner joints and let power steering fluid or grease make a mess. Left too long, that can mean a noisy, sloppy steering feel and, in bad cases, a damaged rack.

As part of regular servicing on a 2006 Highlander/Kluger, a quick visual of the rackboots is a smart move. Look for:

• Cracks, splits, or perishing in the rubber
• Grease or fluid weeping out of a boot end
• Boots that look collapsed, swollen, or have loose/missing clamps

If any of that shows up, replacement is straightforward and typically doesn’t require removing the steering rack. A technician will support the vehicle, remove the wheel, mark the tie rod length for alignment, disconnect the outer tie rod end, slide off the old boot, check the inner tie rod for play, and fit a quality boot with proper clamps. On reassembly, they’ll set the toe and recommend a wheel alignment. Toyota documentation notes using the correct type of clamp and a light application of specified grease at the inner joint only—don’t pack the boot full, and reconnect any rack breather or balance tube if fitted.

Quality matters here. Genuine or reputable aftermarket boots handle Aussie and Kiwi UV and heat better, resisting cracking. Given how exposed the boots are, an inspection every service or 10,000–15,000 km is cheap insurance. If the vehicle has seen off-road, beach, or floodwater, check them sooner. Catching a torn rackboot early can save the steering rack and keep the Highlander/Kluger driving tight and true.

Handy tips:

• Replace boots in pairs if one has failed.
• Always use proper ear/OTA clamps rather than generic cable ties.
• Get a wheel alignment after any tie rod or boot work.

Popular questions about 2006 Toyota Highlander/Kluger rackboots

How can someone tell the rackboots need replacing on a 2006 Highlander/Kluger?

They’ll usually spot cracks, splits, or grease flung around the inner guard. A clunk over bumps or vague steering can hint at inner tie rod wear from a torn boot. If a service tech peels the boot back and finds grit or moisture, it’s time for new boots and a closer look at the inner joint.

A regular under-car check during oil services is enough to catch problems early.

Can rackboots be replaced without removing the steering rack on this model?

Yes. On the 2006 Highlander/Kluger, the boots can be swapped by removing the outer tie rod end and sliding the old boot off. It’s a tidy driveway job for a competent DIYer with the right tools, but alignment marks and a post-job wheel alignment are essential.

If there’s inner tie rod play or contamination inside the rack, professional assessment is wise.

What does rackboot replacement typically cost and how long does it take in AU/NZ?

For most workshops, expect around 1–1.5 hours plus a wheel alignment. Parts range from budget aftermarket to genuine, many owners see total fitted costs in the few-hundred-dollar bracket depending on brand and alignment pricing in their area.

If corrosion or seized tie rods slow things down, labour may be a touch higher.