Parts for your 2013 Toyota Bb-Steering rack

2013 Toyota bB steering rack — what it does and how to look after it

Based on technical sources, the 2013 Toyota bB is fitted with a steering rack. Toyota’s Electronic Parts Catalogue (JP market, QNC20/QNC21 series) lists a rack-and-pinion “steering gear assembly” for 2013 bB variants, and Toyota’s service information (TIS Repair Manual: Steering – Electric Power Steering) details inspection and replacement of the rack-and-pinion steering gear. Major aftermarket catalogues for this platform also list inner rack ends and tie rods, confirming the application.

On the bB, the steering rack turns the driver’s input at the wheel into precise side-to-side movement that steers the front wheels. The 2013 model uses electric power steering (EPS), typically column-assist, so the rack itself is a mechanical rack-and-pinion unit without hydraulic lines. That combo keeps the steering light around town, tidy on the motorway, and simpler to service because there’s no power steering fluid to change.

As part of routine servicing, the rack deserves a quick once-over. The key checks are the rack boots (gaiters), inner and outer tie rods, and mounting points. If a boot tears, road grime and water can contaminate the rack bar and inner joints, leading to wear or corrosion—especially relevant for coastal Australia and New Zealand. A technician should also look for play at the wheels, listen for knocks over bumps, and verify the steering tracks straight after a wheel alignment.

Tell-tale signs the bB’s rack or its ends may be due for attention include:

• Wandering or tramlining, and uneven tyre wear
• Clunks, knocks or notchy steering feel when turning
• Excessive free play at the wheel, or poor self-centring
• Torn or oily rack boots (oily from split CVs nearby or old grease)
• EPS warning light with steering angle or torque sensor faults

Replacement can be targeted. Inner and outer tie rods are common wear items and can be replaced without changing the whole rack. If the rack bar, pinion bearings or bushings are worn, a complete rack assembly is the smarter fix. Good practice on the bB includes: new boots and clamps, new split pins/lock hardware, torquing to spec from Toyota’s manual, a four-wheel alignment, and steering angle sensor calibration after any rack or column work. There’s no fluid service on EPS models, but keeping tyres balanced, pressures correct, and getting an alignment after kerb strikes will help the rack live a long life—often well past 200,000 km on normal roads.

FAQs

Does the 2013 Toyota bB have a steering rack?
Yes. Technical documentation (Toyota EPC for QNC20/QNC21 and Toyota TIS Repair Manual) specifies a rack-and-pinion steering gear on the 2013 bB with electric power assistance. It’s a conventional mechanical rack paired with EPS, not a hydraulic system.

Is there power steering fluid to change on a 2013 bB?
No. The 2013 bB uses electric power steering, so there’s no hydraulic pump, lines or reservoir. Servicing focuses on the mechanical rack-and-pinion, tie rods, and boots, plus electronic checks if an EPS light appears.

How long should a bB steering rack last?
With intact boots and sensible driving, many bB racks run 150,000–250,000 km or more. Inner/outer tie rods usually wear first. Frequent potholes, kerb hits or torn boots can shorten life, so periodic inspections and timely alignments are well worth it for WOF/rego checks and tyre longevity.