Parts for your 2006 Toyota Crown-Wheel hubs

2006 Toyota Crown wheel hubs — what they do and how to look after them

Wheel hubs are absolutely fitted to the 2006 Toyota Crown (S180 series). Technical references including the Toyota Electronic Parts Catalogue for GRS18x/UZS186 models and the Toyota Crown S180 Chassis & Body Repair Manual list “Front Axle Hub Sub-Assembly” and “Rear Axle Hub and Bearing,” with ABS-related components noted. Toyota’s service information (TIS) also details inspection and replacement procedures for these sealed hub units. So wheel-hubs are directly relevant on this vehicle.

On this Crown, the hub assemblies secure the wheels to the knuckle (front) and to the axle shaft/knuckle (rear on RWD models), keep the wheel rotating smoothly via a sealed bearing, and provide the mounting face for the brake disc. They also carry the encoder/tone ring for the ABS and stability control systems. Being sealed, the bearings inside aren’t serviceable or greaseable, when worn, the whole hub unit is replaced.

Typical signs a Crown’s hub is on the way out include a steady humming or growl that rises with road speed, a change in noise when gently weaving, play when rocking the wheel at 12 and 6 o’clock, ABS or TRC lights from a disturbed encoder/sensor, and heat at the hub after a drive. If any of these crop up, it’s time for a closer look.

There’s no scheduled hub maintenance in the factory service plan, but it’s smart to check for noise and free play at each tyre rotation or brake service. Keep an eye on wheel nut torque (Toyota 5-stud passenger cars are typically around 103 N·m, confirm for the exact spec in the Crown manual), and make sure the wheel and hub mating faces are clean to avoid disc runout and uneven pad wear.

When replacement is due, quality matters. Reputable OE-grade hub units (from makers like NSK, NTN, or Koyo) tend to last longer and run quieter. Protect the ABS sensor and magnetic encoder during removal—don’t lever against or strike them. Rear driven hubs are secured with high-torque fasteners and a staked axle nut, follow the factory torque and nut replacement guidance. A post-repair road test and, if the knuckle’s been disturbed, a wheel alignment check will keep the Crown tracking straight. Re-torque the wheel nuts after 100–150 km to be safe.

• Listen for speed-related hums and check for play at services
• Use OE-equivalent hub units and new hardware where specified
• Handle ABS components with care and verify torque settings

Popular questions about 2006 Toyota Crown wheel hubs

Do 2006 Toyota Crowns use serviceable bearings or sealed hub units?
They use sealed, unitised hub-and-bearing assemblies front and rear. There’s no repacking or preload adjustment. If the bearing wears or the ABS encoder is damaged, the complete hub assembly is replaced, as outlined in Toyota’s S180 chassis repair procedures and parts catalogue.

How long do the hub bearings typically last on a Crown?
Many owners see 120,000–200,000 km or more, depending on road quality, wheel size, and driving style. Big impacts, oversized wheels, or persistent water ingress can shorten lifespan. Regular checks during brake services help catch issues early.

What noise points to a failing wheel hub on a Crown?
A low, steady hum or growl that changes with speed and often gets louder when loading one side (gentle lane changes) is classic. Clicking usually isn’t the hub on a RWD Crown, that’s more a CV issue on FWD/AWD cars. Any ABS warning after hub/brake work can also point to an encoder or sensor problem at the hub.