Parts for your 2018 Toyota Prius-Strut mounts

2018 Toyota Prius strut mounts: what’s fitted and how to look after them

Based on Toyota technical sources — the Repair Manual for the XW50 Prius (front MacPherson strut suspension), the New Car Features guide (double-wishbone rear), and Toyota’s parts catalogue listings for the “Front No.1 Suspension Support Sub-Assembly” — the 2018 Toyota Prius runs strut mounts at the front only. The rear uses separate shocks and coils, so there are no rear strut mounts on this model.

Up front, the strut mounts are the top supports for each MacPherson strut. They sit between the strut and the body, isolating vibration and road noise while also providing a smooth bearing surface so the strut can rotate as the wheels steer. Think of them as the quiet achievers that keep steering feel tidy and the cabin calm, soaking up harshness while carrying the vehicle’s corner loads. When they’re healthy, the Prius steers cleanly, with no graunching, notchiness, or clunks over speed bumps.

Because they live a hard life under Aussie and Kiwi conditions — heat, potholes, corrugations — the rubber insulator and the built‑in bearing can wear. There’s no fixed replacement interval, but they’re worth a close look anytime the front struts or springs are serviced, and at major inspections around 60,000–100,000 kilometres.

• Common signs they’re due: a dull clunk over sharp bumps, vague turn‑in, a spring “twang” when turning at low speed, or notchy steering that won’t self‑centre nicely.
• Visual clues: perished or cracked rubber at the mount, or a visible gap where there shouldn’t be one.

Best practice during servicing of a 2018 Prius:

1. Inspect the strut mounts whenever the front suspension is apart, replace mounts in pairs if wear is found.
2. If fitting new front struts or springs, chuck in new mounts and bearings at the same time — it saves labour and keeps everything consistent.
3. Use new self‑locking hardware where specified and torque fasteners at ride height to avoid bush pre‑load.
4. Finish with a wheel alignment, changing mounts can nudge camber/caster and toe.

Quality OEM‑grade mounts keep noise down and steering silky. Done right, the Prius will feel tight, track straight, and stay quiet on coarse chip — exactly what owners expect from a hybrid that’s built for long, drama‑free kilometres.

Popular questions about 2018 Toyota Prius strut mounts

Do the 2018 Prius have strut mounts front and rear?

Front, yes, rear, no. Toyota specifies a MacPherson strut with a top mount at the front, and a separate shock and coil double‑wishbone setup at the rear. So you’ll service or replace front strut mounts only.

How long do Prius strut mounts usually last?

Plenty of cars go 150,000–250,000 km on factory mounts, but climate, roads, and loads matter. If there’s clunking, spring bind, or notchy steering, inspect sooner. If you’re replacing front struts, it’s smart money to do the mounts and bearings together.

What noises point to a crook strut mount?

A dull clunk over potholes, a creak or “twang” when turning the wheel at parking speeds, and steering that feels sticky or won’t self‑centre are classic clues. Also rule out sway‑bar links and top nut torque to be sure you’ve nailed the cause.