Parts for your 2019 Toyota Mark x-Steering bushes

2019 Toyota Mark X steering bushes: what they do and how to look after them

Based on the Toyota Electronic Parts Catalog (EPC) for the GRX130 series, the Toyota Global Technical Information System (TIS) repair manual for the Mark X, and JPNZ/translated workshop references for late-model GRX130 vehicles, the 2019 Toyota Mark X uses steering bushes (often listed as cushion, steering gear) to mount the electric power steering rack to the front subframe, and a support bush within the steering column assembly. So steering bushes are relevant and fitted to this model.

On the 2019 Mark X, the steering bushes sit between the rack-and-pinion housing and the front crossmember. Their job is to isolate vibration, keep the rack located under load, and stop unwanted movement that would otherwise make the steering feel vague. Think of them as the quiet achievers: small bits of rubber that keep the steering sharp and the cabin calm on coarse-chip roads common around Australia and New Zealand.

When these bushes age, harden, or tear, the driver will often notice a dull clunk over sharp bumps, a little kickback through the wheel, or a slight delay before the car responds to initial steering input. Because the Mark X runs electric power steering (no hydraulic fluid), contamination usually comes from engine oil or road grime rather than power steering leaks, but any oil on rubber accelerates deterioration.

There’s no fixed replacement interval in the factory schedule, they’re serviced on condition. A good workshop will check for play at each service by gently prying the rack at its mounts with the wheels on the ground and inspecting the bushes for cracks, separation, or excessive compression. If the steering feels loose yet tie-rod ends and ball joints test fine, the rack bushes are prime suspects.

• Common signs they’re due:
  • Knock or thud over potholes or driveway entries
  • Wandering or tramlining on the motorway
  • Steering wheel shimmy on rough surfaces despite balanced tyres

Replacement is straightforward for a trained tech: support the rack, remove the through-bolts and brackets, swap the bushes, then torque everything to spec. Because the rack location can shift slightly, a wheel alignment is recommended afterwards to keep the Mark X tracking straight and protect tyre life. For parts choice, quality OEM rubber keeps the original refinement, reputable polyurethane can add precision but may transmit a touch more road feel—great for enthusiasts, less ideal if the car’s mainly a commuter.

Nice additions while you’re there: inspect inner and outer tie-rod ends, column intermediate shaft play, and front lower control arm bushes. One tidy visit, sharper steering feel, and fewer noises—easy win.

FAQs

Do 2019 Toyota Mark X models have steering bushes?

Yes. The GRX130 Mark X uses rubber “cushion” bushes to mount the electric steering rack to the subframe, along with a support bush in the column assembly. They’re serviceable items and can be replaced without changing the whole rack, provided the mounts aren’t damaged.

What are the symptoms of worn steering rack bushes on a Mark X?

Owners typically notice a dull knock over sharp bumps, a slight delay before the car responds to steering input, or mild wandering on uneven roads. If tie-rods and ball joints check out but the steering still feels vague, the rack bushes are worth a close look.

Do you need a wheel alignment after replacing steering bushes?

It’s strongly recommended. Even a small change in how the rack sits can nudge toe settings, so an alignment helps the Mark X track straight and protects tyre wear after bush replacement.