Parts for your 2010 Toyota Bb-Strut mounts

2010 Toyota bB strut mounts: what they do and when to replace

Technical references including the Toyota Repair Manual for bB QNC20/21 (2005–2016), the Toyota Electronic Parts Catalog (listing the “front suspension support sub-assembly”), and common aftermarket catalogues (e.g., KYB and Monroe listing front strut mounts/bearings for QNC20/QNC21) confirm that the 2010 Toyota bB uses MacPherson struts at the front, and therefore has front strut mounts. The rear uses a torsion-beam with separate dampers and springs, so no rear strut mounts.

On the 2010 Toyota bB, the front strut mounts do a quiet but critical job. They bolt the strut assembly to the body, cushion impacts through a rubber insulator, and house a bearing so the strut can rotate smoothly when the wheels steer. That combination keeps road harshness out of the cabin while maintaining precise steering feel. When they start to tire, you’ll often hear knocks or creaks over bumps, feel vague steering or “memory steer” after a turn, or notice uneven tyre wear. Under the bonnet, perished or cracked rubber around the strut top is another tell-tale.

As a rule of thumb, bB strut mounts can last anywhere from 80,000 to 150,000 kilometres depending on road conditions, loads, and tyre/wheel choices. Replacing in pairs is good practice. Choose quality OE or reputable aftermarket mounts, and make sure the bearing is included or renewed at the same time. It’s smart to refresh the upper spring insulators, bump stops and dust boots too, as they age together. After any strut or mount work, a wheel alignment should be organised—camber and toe can shift just enough to affect tyre life and stability.

When servicing, a workshop will road test for noise and steering feel, then inspect the strut tops for movement, cracking, or rust. Safe spring compression is non-negotiable before removing the top nut. The strut shaft shouldn’t be spun with power tools—use the correct holding method and torque everything to factory spec. Pay attention to mount orientation marks and recheck fasteners after the first few hundred kilometres of driving. There’s no real “maintenance” beyond periodic inspection, but keeping suspension components in good nick and staying on top of alignments will help the bB track straight and ride quietly.

• Common symptoms: clunks over bumps, creaks while turning, vague or heavy steering, uneven tyre wear, visible cracks at the strut top.
• Best practice: replace mounts/bearings in pairs, add an alignment, and renew related rubber parts while you’re in there.
• Service interval touchpoint: inspect every service or 10,000–15,000 km—earlier if driving on rough roads.

Popular questions about 2010 Toyota bB strut mounts

Do 2010 Toyota bB models have strut mounts, and where are they?

Yes—at the front only. The mounts sit at the top of each front strut, under the strut towers, and are accessible from the engine bay. The rear uses a torsion beam with separate shocks and springs, so there are no rear strut mounts.

How long do the strut mounts typically last on a 2010 bB?

Expect 80,000–150,000 km depending on road quality and driving style. If there are knocks over bumps, binding or “memory” in the steering, or cracked rubber at the towers, it’s time to plan a replacement.

Do you need a wheel alignment after replacing the bB’s strut mounts?

Yes, it’s recommended. Even if camber bolts weren’t loosened, removing and refitting struts can shift alignment slightly. An alignment helps protect tyres and keeps the bB’s steering feel tidy.