Parts for your 2017 Toyota Mark x-Steering bushes

2017 Toyota Mark X steering bushes

Yes, the 2017 Toyota Mark X does use steering bushes. Technical references such as the Toyota Electronic Parts Catalog (EPC) for the GRX130 series list “Insulator, Steering Gear” and “Bush, Steering Column Support” within the Steering Gear & Linkage and Steering Column sections. The Toyota GRX130 Repair Manual (Steering – Rack and Pinion [EPS] – Removal/Installation) also shows the steering rack secured to the front subframe via rubber insulators, with additional bushes supporting the steering column. So, steering bushes are absolutely relevant on this model.

On the Mark X, steering bushes act like little shock absorbers between the steering gear and the chassis, and within the column support. Their job is to isolate vibration, keep the rack properly located, and help deliver a direct, rattle‑free feel through the wheel. Over time, heat, road grime, oils and general wear can harden or crack the rubber, which allows the rack to shift slightly under load. That’s when drivers start noticing a dull knock over sharp bumps, a vague on‑centre feel, or the wheel kicking back more than it should.

As part of regular servicing, a workshop should visually check the rack mounting insulators and steering column bushes for cracks, perishing, or distortion. With the car safely raised, a tech can lightly lever the rack housing to see if there’s excessive movement. Any free play, witness marks, or oily swelling on the bushes is a sign they’re due. While there’s no set kilometre interval, many Mark X owners find inspection every 40,000–60,000 km is sensible, especially if the car sees rough roads or larger wheels/tyres.

Replacement is straightforward for a trained tech: support the rack, remove the mount fasteners, swap in quality OEM‑spec insulators, and torque to spec. An alignment check afterwards is good practice, as the rack’s position relative to the subframe can subtly shift when tired bushes are replaced. For drivers chasing a crisper steering feel, performance polyurethane options may be available, they sharpen response but can pass a touch more vibration into the cabin, so it’s a trade‑off.

• Common symptoms: steering knock on bumps, vague on‑centre, tramlining, uneven bush wear.
• Service tip: keep oil/grease off rubber bushes, contamination accelerates deterioration.
• Best practice: replace bushes in pairs and inspect column joints while you’re there.

FAQs

What are the signs the Mark X steering bushes need replacing?
Owners often report a dull clunk over potholes, a slight shimmy through the wheel, or steering that feels a bit loose just off centre. On inspection, the rack can be seen moving on its mounts, or the bushes show cracks and flattening.

Do steering bushes affect wheel alignment?
They can. Worn rack insulators allow the steering gear to shift under load, which can mimic poor toe settings and cause tramlining. After replacing bushes, a wheel alignment check is recommended to make sure everything tracks straight.

Rubber or polyurethane bushes for a daily‑driven Mark X?
Rubber keeps it quiet and comfy, exactly as Toyota intended. Polyurethane tightens response and lasts longer, but it can add a touch more vibration. For a daily driver, most owners stick with quality OEM‑style rubber, for a sportier feel, poly can be a good upgrade.