Genuine Mazda Front Wheel Bearing / Hub Bolt • 9YA1-61-002

Genuine Mazda 9YA1-61-002 Front Steering Knuckle Bolt

Replacement Genuine Mazda front steering knuckle / knuckle assembly bolt for Mazda MX-5 Mk3 / Mk3.5 / Mk3.75 (NC) and selected Mazda RX-8 front suspension applications listed in the compatibility table.

This Genuine Mazda bolt is used in the front axle / steering knuckle area, helping secure front suspension, hub or knuckle-related components depending on the model and assembly layout. It is a small but important fixing used where correct bolt strength, thread specification and fitment are important for safe front suspension assembly.

The front knuckle area carries the wheel hub, brake and steering-related loads, so using the correct OE fastener is important when replacing front hubs, bearings, suspension components or knuckle hardware.

This part is commonly replaced when the original bolt is corroded, rounded, stretched, damaged during removal, missing, or no longer suitable for reuse during front suspension, wheel bearing, front hub or steering knuckle work.

• Part type: Front steering knuckle bolt / knuckle assembly bolt / front axle bolt
• Primary use: Front axle, chassis, driveline or steering knuckle fixing
• Location: Front suspension / front steering knuckle area
• Position: Left front or right front
• Quantity supplied: 1
• Brand: Genuine Mazda
• Part No.: 9YA1-61-002
• Also referenced as: 9YA161002
• Suitable for Mazda MX-5 NC and RX-8 front suspension applications listed in the compatibility table

Fitment advice: Designed for the front axle / steering knuckle applications listed in the compatibility table. This is a front-position fixing and may be used on the left-hand or right-hand side depending on the assembly. For suspension or hub repairs, compare the removed bolt with the replacement before final assembly, especially if the vehicle has had previous suspension, hub or knuckle work.

Other items to consider: When changing this part, you may also want to consider purchasing related front suspension and hub hardware such as additional knuckle bolts, front hub mounting bolts, hub and bearing assemblies, ABS sensor hardware, brake disc retaining screws, wheel nuts, lower arm bolts and any other corroded or damaged fasteners found during removal.

Useful tools / consumables: Jack and axle stands or vehicle lift, socket set, breaker bar, torque wrench, penetrating oil, wire brush, brake cleaner, anti-seize compound where appropriate, thread cleaning tools and suitable tools for removing the associated front hub, brake or suspension components.

Difficulty guide: DIY Difficulty: Moderate. The bolt itself is straightforward, but access and corrosion can increase the difficulty depending on the job being carried out. The vehicle must be safely supported and all suspension or hub-related fasteners should be tightened to Mazda workshop manual torque specification.

Why Genuine Mazda? Genuine Mazda suspension and hub fasteners are manufactured to the original specification for correct thread pitch, shank length, head design, material strength and fitment. Using the correct OE bolt helps maintain safe clamping force, proper component alignment and reliable front suspension assembly.

What’s in the box: One Genuine Mazda front steering knuckle / knuckle assembly bolt. Nuts, washers, hub assemblies, suspension arms, brake components and additional fixings are not included unless listed separately.

Installation notes: Clean the mating threads before installation, inspect the surrounding front hub, steering knuckle and suspension hardware, replace any damaged or corroded related fixings, and tighten to Mazda workshop manual specification. After suspension or hub work, check for correct assembly, brake operation and wheel security before returning the vehicle to service.