Parts for your 2017 Toyota Mark x-Strut mounts

2017 Toyota Mark X and strut mounts: what’s actually fitted

Based on Toyota’s own technical literature for the GRX130 series (New Car Features manual and Repair Manual) and major catalogues used by workshops across Australia and New Zealand (Toyota EPC, KYB/Monroe fitment data), the 2017 Toyota Mark X does not use MacPherson struts, so traditional strut mounts with a steering bearing aren’t fitted. The Mark X runs a double-wishbone front suspension and a multi-link rear. In these layouts, the steering pivot is managed by upper and lower ball joints rather than a strut-top bearing, so there’s no “strut mount” in the MacPherson sense.

What the Mark X does have are shock absorber upper mounts/insulators (sometimes called shock top mounts, cushions or support insulators in the Toyota EPC). These rubber-isolated mounts secure the damper and spring assembly to the body but don’t contain a rotating bearing. Rear suspension also uses shock upper insulators, not strut mounts.

Why strut mounts aren’t used here comes down to geometry. In a MacPherson system, the strut is the steering and load-bearing member, so it needs a top mount with an integrated bearing to let the assembly rotate as the wheels steer. In a double-wishbone/multi-link setup, the arms and knuckles manage wheel location and steering, while the shock and spring mostly handle vertical loads. That’s why the Mark X only needs rubberised shock mounts for isolation, not a strut bearing assembly.

• If there’s a knock over speed humps or sharp creaks at low speed, have the shock upper insulators, bump stops and dust boots inspected.
• Look for perished or cracked rubber, torn boots and loose top nuts, replace in pairs across the axle for balanced ride and braking.
• After any mount or damper work, request a wheel alignment and re-torque of suspension fasteners at ride height.

For parts searches in AU/NZ, look under “front shock absorber insulator/support” or “rear shock upper insulator” for GRX130 Mark X rather than “strut mount”. That will get the correct, non-bearing style top mounts your Mark X actually uses.

Popular questions about 2017toyotamarkx strutmounts

Does a 2017 Toyota Mark X have strut mounts?

No. The GRX130 Mark X uses a double‑wishbone front and multi‑link rear suspension, so it doesn’t need MacPherson‑type strut mounts with a steering bearing. Instead, it uses shock absorber upper insulators (rubber top mounts) that isolate noise and vibration but don’t rotate.

If you’re chasing a top‑end suspension noise, ask for shock upper insulators for the Mark X, not strut mounts.

What parts replace the role of “strut mounts” on a Mark X?

The functional equivalents are the front and rear shock upper insulators, plus related hardware like the spring seat, dust boot and bump stop. Steering rotation happens through the ball joints in the double‑wishbone/multi‑link arms, so there’s no bearing in the top mount.

When renewing dampers, it’s smart to replace the insulators, boots and bump stops together for a quieter ride and longer service life.

When should the Mark X’s shock upper insulators be checked or replaced?

Inspect them at every service or at least every 40,000–60,000 km, and whenever tyres are rotated. Signs they’re tired include clunks over potholes, creaks at parking speeds, uneven tyre wear, or visible cracking/perishing of the rubber.

If one side has failed, replace both sides on the same axle, then get an alignment to keep the Mark X tracking straight and true.