Parts for your 2006 Toyota Land cruiser-Brake wheel cylinders

Are brake wheel cylinders used on the 2006 Toyota Land Cruiser?

Short answer: it depends on the exact 2006 Land Cruiser variant. Referencing technical sources such as the Toyota Electronic Parts Catalogue (AUS/NZ market) and the Toyota factory repair manual for the 100/105 Series, the mainstream 2006 Land Cruiser 100 (UZJ100/HDJ100, independent front suspension) runs four-wheel disc brakes and does not use rear brake wheel cylinders. The heavy-duty 105 Series (HZJ105R/FZJ105 with live axles), still sold in Australia and some NZ markets in 2006, uses rear drum brakes and does have hydraulic brake wheel cylinders.

• UZJ100/HDJ100 (most 2006 Land Cruisers in AU/NZ): rear disc brakes with calipers – no brake wheel cylinders listed in the Toyota EPC or covered for service in the disc brake section of the repair manual.
• HZJ105R/FZJ105 (heavy-duty/live axle): rear drum brakes – wheel cylinders are listed in the Toyota EPC and covered in the “Rear Drum Brake”/“Wheel Cylinder” procedures in the factory manual.

Why wheel cylinders aren’t used on most 2006 Land Cruisers: the 100 Series with rear disc brakes relies on calipers to convert hydraulic pressure into clamping force on the rotor. Wheel cylinders are specific to drum brake designs, where they push the shoes outwards against the inside of the drum. Because the UZJ100/HDJ100 runs discs at the rear, there’s simply no place for a wheel cylinder in that system.

Worth noting: these 100 Series disc-brake models do have a small drum-in-hat parking brake inside the rear rotor. That setup uses parking brake shoes and a mechanical lever, not hydraulic wheel cylinders. Toyota’s repair manual and parts listings show no hydraulic components for that handbrake other than the main hydraulic disc brake system.

If you’re unsure which you’ve got, check the build plate/model code (UZJ100/HDJ100 = discs, HZJ105R/FZJ105 = rear drums) or look through the wheel: a visible rotor and caliper means discs, a closed backing plate generally signals a rear drum.

FAQs

Does my 2006 Land Cruiser actually have brake wheel cylinders?
Most Australian and New Zealand 2006 UZJ100/HDJ100 models do not, because they run rear disc brakes. The heavy-duty HZJ105R/FZJ105 does, as it uses rear drums with hydraulic wheel cylinders. Checking the model code on the build plate or visually inspecting the rear brakes will confirm it.

How can I tell if mine is a 105 Series with wheel cylinders?
Look for “HZJ105R” or “FZJ105” on the compliance/build plate. A quick visual check helps too: if you can see a rotor and a caliper at the back, it’s disc-braked (no wheel cylinders). If the rear brake is a drum with a backing plate, it’s a 105 and it will have wheel cylinders. Toyota’s parts catalogue and the factory repair manual back this up.

If my 2006 Land Cruiser doesn’t use wheel cylinders, what should I service instead?
Focus on the rear calipers (seal condition and slide lubrication), pads and rotor thickness/runout, and flush the brake fluid on schedule. Also adjust/inspect the drum-in-hat parking brake shoes and hardware. These are the items Toyota details for the disc-brake 100 Series in the factory service procedures.