Wheel Hubs and Bearings for Toyota Sienna
The Toyota Sienna is a mid-sized minivan and family vehicle has a number of trim levels, including the base edition, XLE, LE, SE, and Limited. Minivans made after 2010 may have all-wheel drive as well as front-wheel drive. Toyota Sienna rims can vary between 17-inch and 19-inch sizes, so hubs and bearings should be obtained by size, model year, and trim level.
Can Toyota Sienna wheel bearings be repaired?All Toyota Sienna models use modular wheel bearings, which are factory-sealed and intended to be replaced in case of failure. Replacement bearings for Toyota Sienna may be found separately from hubs. They can also be removed and replaced as a complete, sealed unit if repairs are necessary.
What is in a Sienna wheel hub assembly kit?Most hub assembly kits for Toyota Sienna come with five lug hubs, sealed bearings, and grease seals. The kits may or may not be equipped with ABS speed sensors, which are used as part of ABS braking systems. Depending on the Toyotas model year, the wheel bearings may be separate from the hub or seated in a single module. This also depends on whether or not the hubs and wheel bearings will go on the front or rear axle.
Do replacement Sienna hubs and bearings need ABS sensors?Many Toyota Siennas are made with ABS braking systems, which are available on all four tires. The ABS sensing unit and connector in the Toyota minivan is separate from the wheel bearings and hub. If faulty, they will need to be replaced separately from wheel bearings and hubs. Toyota Sienna wheel speed sensing parts can be mechanical or magnetic and will connect to the ABS control assembly. In the case of magnetic sensing systems, Toyota Sienna wheel bearings must be seated and oriented toward the hub correctly for proper operation.
Is there a difference between FWD and AWD Sienna bearings?Toyota Sienna wheel hub bearing assemblies are available for front and rear wheels, on all-wheel drive Siennas, and front-wheel drive minivans. The size and configuration of the hubs, spindles, and bearings differs between the two drive options. You should select replacement hubs and bearings for either AWD or FWD, depending on the Toyota model year and edition.
Should Toyota wheel bearings be replaced in pairs?Toyota Siennas with front-wheel drive should have hub and bearing assemblies replaced in pairs for either the front or rear axles. All-wheel drive Toyota Siennas have different wear patterns from front-wheel drive Toyotas, and hub assemblies or wheel bearings can be replaced one at a time. If rust is present in the hub assembly, or signs of wear show upon inspection, hub assemblies and wheel bearings should be replaced in pairs. This is true whether or not the minivan has FWD or AWD.