Genuine Mazda Front Wheel Hub & Bearing Assembly • F189-33-04X

Genuine Mazda F189-33-04X Front Wheel Hub & Bearing Assembly

Replacement Genuine Mazda front wheel hub and bearing assembly for Mazda RX-8 facelift / Series 2 models fitted with Dynamic Stability Control listed in the compatibility table.

The assembly bolts to the front steering knuckle and combines the wheel-mounting hub with a sealed wheel bearing. It supports the vehicle's weight, allows smooth wheel rotation and maintains accurate wheel location within the front suspension and braking assembly.

This listing is for one complete Genuine Mazda front wheel hub and bearing assembly. The same part is used on the front left or front right, with two fitted per vehicle.

Replacement may be required where the original bearing produces rumbling, humming or grinding noises that increase with road speed, or where excessive play is detected at the front wheel. A damaged hub or bearing may also contribute to vibration, irregular tyre wear, imprecise wheel location or ABS and stability-control faults.

• Part type: Front wheel hub and bearing assembly
• Primary use: Supports the front wheel and permits smooth wheel rotation
• Location: Front steering knuckle / upright
• Position: Front left or front right
• Vehicle system: Dynamic Stability Control / DSC-equipped application
• Quantity per vehicle: Two, with one fitted on each front side
• Quantity supplied: One hub and bearing assembly
• Brand: Genuine Mazda
• Part No.: F189-33-04X
• Also referenced as: F1893304X
• Fitment note: Confirmed for the DSC-equipped Mazda RX-8 applications shown in the compatibility table
• Alternative application note: F151-33-04X is commonly catalogued for RX-8 models without DSC and should not automatically be treated as interchangeable

Fitment advice: Establish whether the vehicle is equipped with Dynamic Stability Control and match the original hub part number before installation. Compare the electrical or ABS-related connection arrangement, mounting flange and adjoining steering-knuckle components with the original assembly.

Other items to consider: When changing this part, you may also want to consider purchasing a new hub retaining nut where applicable, brake disc retaining hardware, wheel studs, brake backing plate, ABS-related fixings and any corroded steering-knuckle or caliper fasteners disturbed during removal.

Useful tools / consumables: Vehicle lift or suitable jack and axle stands, high-capacity torque wrench, breaker bar, socket and spanner set, penetrating fluid, hub puller where required, wire brush, brake cleaner and suitable anti-corrosion treatment for the surrounding non-mating surfaces.

Difficulty guide: DIY Difficulty: Moderate to Advanced. The brake caliper and disc normally require removal, and heavily corroded hub-to-upright fasteners can be difficult to release. Correct tightening of the hub, brake and wheel hardware is essential.

Why Genuine Mazda? Genuine Mazda hub assemblies are manufactured to match the original bearing specification, mounting flange, wheel-stud pattern, steering-knuckle interface and stability-control system requirements. Using the correct OE assembly helps retain accurate wheel location, smooth bearing operation and compatibility with the original Mazda braking and electronic-control systems.

What’s in the box: One Genuine Mazda front wheel hub and bearing assembly, part number F189-33-04X. Separate retaining nuts, brake components and mounting bolts are not included unless stated otherwise.

Installation notes: Support the vehicle securely and remove the wheel, brake caliper and disc as required. Disconnect any related electrical connection carefully before removing the original hub. Clean the steering-knuckle mounting face, position the replacement assembly without damaging the sensor or wiring arrangement and tighten all fasteners to the applicable Mazda workshop specification. Confirm correct brake, ABS and DSC operation after installation.