Parts for your 2005 Toyota Bb-Strut mounts

2005 Toyota bB strut-mounts

According to Toyota technical references—the bB NCP30/31 Repair Manual (Suspension section) and the Toyota Electronic Parts Catalog for the front suspension (PNC 48609 support, PNC 48619 bearing)—the 2005 Toyota bB uses a front MacPherson strut setup, which relies on strut-mounts (top mounts with an integrated bearing). So strut-mounts are absolutely relevant on this model.

On the 2005 Toyota bB, the strut-mounts sit at the top of each front strut assembly. They do two big jobs: they isolate road noise and vibration from the cabin, and they provide a smooth, low-friction pivot so the strut can rotate as the wheels steer. The mount’s rubber insulator cushions bumps, while the thrust bearing lets the spring and strut turn without binding. When the mount is tired—rubber perished or the bearing rough—you’ll often hear clunks over sharp bumps, a creak or notch in the steering, or notice the steering not self-centring cleanly. Left too long, worn mounts can contribute to poor tyre wear and vague front-end feel.

As part of routine servicing, it’s smart to inspect the strut-mounts every 40,000–60,000 kilometres, or any time the struts are out. Look for cracked rubber, separated bonding, distorted (mushroomed) tops, or rust/dust tracking that suggests a failed bearing. Many owners choose to replace the strut-mounts whenever fitting new front shocks/struts, because access is the same and fresh mounts protect the new dampers from shock loads.

• Common symptoms of worn strut-mounts:
  • Clunk or thud over bumps
  • Creaking or “notchy” steering feel, or memory steer
  • Vibration through the wheel, unsettled front end, or uneven tyre wear

• Service tips for the bB:
  • Replace mounts in pairs and consider new bearings, boots and bump-stops at the same time.
  • Use a proper spring compressor, don’t rattle-gun the strut shaft—torque to the workshop spec.
  • Note camber bolt positions and get a wheel alignment after refitting.
  • Choose quality OEM or reputable aftermarket mounts to avoid squeaks and premature wear.

Done right, new strut-mounts restore that tidy, quiet front end the bB is known for, sharpen up steering feel, and help tyres last longer—ideal for everyday Aussie and Kiwi roads.

Popular questions

Does a 2005 Toyota bB have strut-mounts?
Yes. The bB runs a MacPherson strut front suspension, which uses strut-mounts (top mounts with a thrust bearing) to support the strut and let it rotate smoothly as you steer.

When should strut-mounts be replaced on a 2005 bB, and is an alignment needed?
Inspect them every 40–60,000 km and replace if there’s noise, play, cracking, or binding. Many techs replace mounts when fitting new struts, often around 120–180,000 km. A wheel alignment is recommended after any front strut or mount work.

Can worn strut-mounts cause steering issues on a bB?
They can. Expect creaks, notchy steering, poor self-centring, and a vague front end. In bad cases you’ll hear clunks over bumps and may see uneven tyre wear.