Parts for your 2013 Toyota Bb-Strut mounts

2013 Toyota bB strut mounts — what they do and when to replace them

Strut mounts are absolutely used on the 2013 Toyota bB. Technical references including Toyota’s Electronic Parts Catalog (EPC) for the QNC20/QNC21 series and the Toyota front suspension Repair Manual describe a MacPherson strut layout at the front, which by design requires a strut top mount with an integrated bearing. The rear of this model is a torsion-beam setup with separate dampers and springs, so no rear strut mounts are fitted. This architecture is also echoed in the closely related Daihatsu Materia/Coo workshop material, reinforcing the same front MacPherson design.

On this bB, the front strut mounts sit at the top of each strut assembly, tying the suspension to the body while isolating vibration and road harshness. They carry a chunk of the vehicle’s weight, cushion bumps via a rubber insulator, and let the strut pivot smoothly when steering thanks to the built-in bearing. When they get tired, the driver might notice clunks over bumps, creaks while turning, a steering wheel that doesn’t self-centre well, or vague front-end feel. Visual clues include cracked rubber at the top hat or signs the strut is shifting in its tower.

Servicing-wise, strut mounts don’t have a fixed interval, but they’re worth a look during routine inspections—say every 40–60,000 kilometres or whenever the front end feels off. Aussie and Kiwi conditions (corrugations, potholes, and coastal air) can age the rubber and grease more quickly. If one side has failed, it’s smart to replace both fronts together to keep things even.

• Always have a wheel alignment after strut or mount replacement—geometry can shift even if only the tops are changed.
• Use quality mounts with new bearings, don’t re-use nyloc/top nuts unless the manual allows it.
• Check the strut boots and bump stops while you’re in there, renew if cracked or perished.
• Follow Toyota torque specs and spring orientation marks to avoid noise and premature wear.

Because coil springs are under serious preload, DIY work can be risky without the right tools. A proper spring compressor and the correct procedure are a must. Many owners will be better off letting a licensed mechanic handle the job, then finishing with a proper alignment to protect their tyres and keep the bB tracking straight.

Does the 2013 Toyota bB have strut mounts?

Yes. The 2013 bB (QNC2#) uses MacPherson struts at the front, which include strut mounts with bearings. The rear suspension is a torsion beam with separate shocks and springs, so there are no rear strut mounts.

How long do strut mounts last on a 2013 bB?

It varies with roads and driving style, but many last between 80,000 and 150,000 kilometres. If there are clunks over bumps, groans when turning, or cracking at the strut tops, it’s time for closer inspection and likely replacement.

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

Highly recommended. Even if only the mounts are changed, small shifts in the strut position can alter alignment. A post-job alignment keeps steering sharp and prevents uneven tyre wear.