Parts for your 2002 Toyota Bb-Strut mounts

2002 Toyota bB Strut Mounts — What They Do and When to Replace

Technical sources confirm the 2002 Toyota bB (NCP30/NCP31) uses front MacPherson struts with dedicated strut mounts. Toyota’s Electronic Parts Catalogue and model Repair Manual/New Car Features documents describe a “front suspension support sub-assembly” with an integrated bearing that allows the strut to rotate as the wheels steer. The rear of the bB is a torsion-beam setup with separate shock absorbers and coil springs, so there are no rear strut mounts—just spring insulators and shock top mounts. So yes, strut mounts are relevant on the front of a 2002 Toyota bB.

On the front end of a bB, the strut mounts sit at the top of each strut and do a few big jobs. They isolate vibration and road harshness from the body, keep the strut properly located in the tower, and—thanks to the built-in bearing—let the strut turn smoothly with the steering. When the rubber insulator hardens or cracks, or the bearing gets notchy, you’ll notice extra noise, a bit of steering graunch or “memory steer”, and sometimes uneven tyre wear.

Because these mounts cop constant load, they’re a wear item. A good workshop will check them whenever the front suspension or steering is inspected—think regular servicing, brake jobs, and tyre rotations. Typical replacement timing is when symptoms show up or around the same time the front struts are renewed, often somewhere between 100,000 and 160,000 km depending on roads and loads.

If replacement’s on the cards, it’s smart to do both front mounts together and include the strut-top bearings. Use quality parts (OE or reputable aftermarket), compress the springs safely, and torque everything to the factory spec with the vehicle at ride height to avoid pre-loading the bush. Follow up with a wheel alignment to keep tyre wear even and steering feel tidy.

Signs the bB’s front strut mounts may be due:

• Clunks, creaks or a dull thud over bumps
• Notchy steering or slow return-to-centre
• Front-end vibration or shimmy that isn’t wheel balance
• Uneven or accelerated inside/outside tyre wear

There’s no real “maintenance” beyond inspection—these mounts aren’t serviceable like a greasable joint. Keep an ear out, get them checked during routine servicing, and replace when wear shows. Your 2002 bB will steer more sweetly and ride more quietly when the strut mounts are in top nick.

Popular questions about 2002 Toyota bB strut mounts

Do 2002 Toyota bBs have rear strut mounts?
They don’t. Per Toyota service literature for the NCP30/NCP31 platform, the rear suspension is a torsion beam with separate shocks and springs. That means no rear strut mounts—just rubber spring insulators and shock top mounts. Only the front uses strut mounts with bearings.

How often should front strut mounts be replaced on a 2002 bB?
There’s no fixed interval. Many owners replace them when renewing front struts, commonly around 100,000–160,000 km, or sooner if there are noises, steering notchiness, or visible rubber deterioration. Regular inspections during servicing will catch early signs.

Can worn strut mounts affect wheel alignment and tyre wear?
Yes. Excess play or collapsed rubber can shift camber and caster slightly under load, leading to feathering or uneven shoulder wear. After replacing mounts, a proper alignment helps restore correct geometry and tyre life.