Parts for your 2013 Toyota Mark x-Rack boots

2013 Toyota Mark X rack-boots: purpose, service and replacement

Yes, the 2013 Toyota Mark X (GRX130 series) uses rack-boots. Toyota’s Electronic Parts Catalogue lists left and right “Boot, Steering Gear” under Steering Gear &, Linkage for the GRX130, and the factory Repair Manual for the Mark X includes inspection and replacement procedures for the steering rack bellows. Whether the car runs electric power steering (EPS) or a hydraulic rack, those concertina-style boots are fitted to protect the rack and inner tie rods.

Rack-boots (also called steering rack bellows) keep grit, water and road muck out of the rack-and-pinion and inner tie-rod joints. They also help retain grease at the inner joints and allow the rack to move freely from lock to lock without fouling. On hydraulic systems they can even catch tell-tale fluid if an internal seal starts leaking. On EPS versions, they’re just as important because the mechanical rack still needs clean, dry movement for accurate steering feel.

For a 2013 Toyota Mark X, it’s smart to inspect the rack-boots at every service or at least every 10,000–15,000 kilometres. Age, ozone and heat can perish the rubber, and a single nick from road debris can open them up. If a boot is split, replace it promptly—letting dirt in can chew out the rack and inner joints and turn a quick, low-cost job into a full rack rebuild.

• Common signs: visible cracks or splits, grease flung on the crossmember, moisture or grit inside the boot, steering knock over bumps, or heavier steering.

Replacement is straightforward for a trained tech: measure or count threads so toe setting is preserved, remove the outer tie-rod end, slip the old boot and clamps off, check and regrease the inner joint if specified, then fit the new boot with proper band clamps (not generic cable ties). If your Mark X has a small breather or equalising tube between boots, refit it so pressure can balance when steering from lock to lock.

After any work that disturbs tie rods, a wheel alignment check is recommended to keep tyres happy and the car tracking straight. Choose quality OEM or equivalent boots, they fit properly and shrug off Aussie and Kiwi conditions better. Technical basis: Toyota Mark X (GRX130) Repair Manual—Steering, Rack and Pinion section, Toyota Electronic Parts Catalogue—Steering Gear &, Linkage, “Boot, Steering Gear” (LH/RH).

Popular questions about 2013 Toyota Mark X rack-boots

Do all 2013 Mark X models have rack-boots?
They do. Both hydraulic and electric power-steering versions of the GRX130 use rack-and-pinion steering with protective bellows on each side. Different assist types don’t change the need for those boots.

How often should rack-boots be replaced?
There’s no fixed interval, replace on condition. Inspect at every service. If a boot shows cracks, is oily inside, or is torn, replace it straight away. Many last well past 100,000 km, but harsh roads or age can shorten life.

Will replacing rack-boots affect wheel alignment?
If the outer tie-rod end is removed or the inner tie rod is adjusted, the toe setting can shift. A post-job alignment check is recommended to avoid uneven tyre wear and off-centre steering.