Parts for your 2006 Toyota Ractis-Brake wheel cylinders

2006 Toyota Ractis brake-wheel-cylinders: fitted, what they do, and how to look after them

Technical references confirm the 2006 Toyota Ractis (chassis codes NCP100/NCP105) uses rear drum brakes with brake-wheel-cylinders. Toyota’s Electronic Parts Catalogue lists a rear wheel cylinder assembly for Ractis under PNC 47550, and the Toyota Repair Manual brake section for drum rears details inspection and overhaul of the wheel cylinder and shoes. Independent parts catalogues (e.g., Aisin brake catalogue) also list replacement rear wheel cylinders for the 2005–2010 Ractis. That makes brake-wheel-cylinders directly relevant to this model.

On the 2006 Toyota Ractis, the brake-wheel-cylinders sit inside the rear drum assemblies and are the muscle behind the shoes. When the driver hits the pedal, hydraulic pressure pushes the two small pistons outwards, forcing the brake shoes against the drum to slow the car. Simple, reliable, and effective for a light hatch that spends most of its time around town.

As part of regular servicing, it pays to give the rear drums a look every 12 months or 20,000 km. Pop the drums off, check for any dampness under the dust boots or on the backing plate, and make sure the pistons slide freely. If there’s any weeping, torn boots, sticking pistons, or uneven shoe wear, it’s time to rebuild or replace the wheel cylinders. In many cases, swapping in new cylinders is quick and cost‑effective, especially if the bores are pitted.

Good practice on the Ractis includes replacing wheel cylinders in axle pairs, fitting new shoe return springs if they’re tired, and cleaning/lubricating the shoe contact points on the backing plate with a high‑temp brake grease (keep it well away from friction surfaces). When refitting, adjust the shoes so the drum just brushes, then bleed the brakes—start at the rear. Use the brake fluid grade shown on the reservoir cap (typically DOT 3 or DOT 4) and flush the fluid every two years to keep moisture and corrosion at bay.

Common signs a Ractis wheel cylinder is on the way out include a spongy pedal, longer stopping distances, the car pulling to one side under brakes, or a wet stripe on the lower edge of the drum/backing plate. If a cylinder has seized, the rear brakes may drag or the handbrake travel may increase. Sort issues promptly to protect the drums and shoes and keep braking performance crisp.

• Inspect: every 12 months/20,000 km
• Flush brake fluid: every 2 years
• Replace in pairs, bleed system after any work

FAQs

Does a 2006 Toyota Ractis have rear drum brakes with wheel cylinders?
Yes. The 2006 Ractis uses rear drum brakes that rely on brake-wheel-cylinders to push the shoes outwards. Multiple technical references, including Toyota’s EPC and repair manuals, specify the rear wheel cylinder for Ractis NCP100/NCP105.

How often should brake-wheel-cylinders be serviced or replaced on a Ractis?
Inspect them annually or every 20,000 km, and flush brake fluid every two years. Replace or rebuild if there’s leakage, torn dust boots, corrosion, sticking pistons, or uneven shoe wear. Many owners replace both rear cylinders together for consistent braking.

What are the symptoms of a failing wheel cylinder on a Ractis?
Look for a spongy pedal, increased stopping distances, pulling to one side, handbrake travel increasing, or visible fluid inside the drum/backing plate. Any of these warrant immediate inspection and likely replacement.