Parts for your 2004 Toyota Mark x-Strut mounts

2004 Toyota Mark X (GRX120/GRX121) — Are strut mounts used?

For the 2004 Toyota Mark X (chassis GRX120/GRX121), strut mounts aren’t a relevant part. Technical sources including Toyota’s New Car Features (NCF) manual for the GRX120 platform, the Toyota Electronic Parts Catalogue (EPC), and mainstream suspension catalogues used in Australia and New Zealand (e.g., KYB and Monroe) show the Mark X runs a front double wishbone suspension and a rear multi-link setup. That layout doesn’t use MacPherson struts, so there’s no strut top bearing/plate assembly—commonly called a strut mount—on this model.

On a MacPherson-strut car, the strut mount sits at the top of the strut, carries vehicle weight, and incorporates a bearing for steering. The Mark X steers through upper and lower ball joints in the double wishbone, not through a rotating strut, so there’s nothing for a strut-top bearing to do. Instead, the dampers bolt to the body with simple rubberised mounts/insulators and hardware.

What owners often mean when they ask about “strut mounts” on a Mark X are these genuine components:

• Front shock absorber upper insulators/cushions and bushes
• Rear shock absorber upper mounts/insulators
• Associated dust boots and bump stops

These rubber parts absolutely age and can thump, creak, or rattle over bumps, just like a worn strut mount would on a different design. If there’s knocking from the front, have the front shock top insulators and wishbone bushes checked, along with stabiliser links. At the rear, the shock upper mounts are quick to inspect and commonly perished on higher‑kilometre cars.

Good servicing practice for a 2004 Mark X in Aus/NZ conditions includes:

• Inspect shock top insulators and bushes every 20,000–30,000 kilometres or 12 months
• Replace rubber mounts in pairs (left/right) if they’re cracked, squashed, or noisy
• Check for oil weep from dampers and replace boots/bump stops if torn
• Book a wheel alignment after any control arm or major suspension work

If a parts site lists a “front strut mount” for a GRX120/121 Mark X, it’s usually a catalogue mix‑up. Toyota’s EPC entries for this chassis show front shock insulators and rear shock mounts rather than a “suspension support sub‑assembly” used on MacPherson‑strut vehicles. Likewise, KYB’s mount listings (their SM-series strut tops) don’t apply to the Mark X front end.

Popular questions about 2004 Toyota Mark X strut mounts

Does the 2004 Toyota Mark X have strut mounts?

No. The GRX120/121 Mark X uses a front double wishbone and rear multi‑link suspension, so it doesn’t run MacPherson struts or strut top bearings/plates. Steering load is handled by the wishbones and ball joints.

What owners should look at instead are the shock absorber upper insulators/mounts and related rubber hardware. These play the noise and vibration isolation role but aren’t steering bearings.

What should be replaced if there’s a “strut mount” noise on a Mark X?

Have the front shock top insulators, stabiliser links, and control arm bushes checked first. At the rear, inspect the shock upper mounts and bump stops. Perished rubber or a loose centre sleeve will often cause the clunk.

If the dampers are tired or leaking, replace the mounts and rubber hardware at the same time. Do both sides of the axle together for even ride and braking behaviour.

Why do some catalogues list front strut mounts for this model?

Generic databases sometimes map “strut mount” across multiple Toyotas, or confuse the Mark X with models that do use MacPherson struts. The Toyota EPC and workshop literature for GRX120/121 don’t specify a strut top bearing/plate at the front.

When ordering, match by chassis code (GRX120/121) and look for “shock absorber insulator/mount” rather than “strut mount”. Reputable Aus/NZ catalogues for this chassis list shock mounts and bushes, not strut tops.