Dorman 951-921 Wheel Bearing and Hub Assembly - Front

Dorman 951-921 Front Wheel Bearing Hub

Dorman 951-921 is a replacement wheel bearing and hub assembly for specific Mazda Miata front applications. It combines the hub and critical bearing replacement components into one repair solution for front-end service on 1990-1997 and 1999-2005 Mazda Miata models.

• Replacement wheel bearing and hub assembly for front axle service
• Steel construction
• 4 wheel studs with M12 x 1.5 thread size
• 24-spline design
• Bolt circle diameter: 100 mm
• Wheel pilot diameter: 54 mm
• Brake pilot diameter: 55 mm
• Hub pilot diameter: 61 mm
• No ABS sensor included
• No flange, flange bolts, or connector terminals included

Fitment for Mazda Miata Front

• Fits 1999-2005 Mazda Miata, front
• Fits 1990-1997 Mazda Miata, front

Detailed Product Description

This Dorman wheel bearing and hub assembly is built for direct replacement on Mazda Miata front wheel applications. The assembly includes the hub and bearing replacement components needed for a complete front hub repair, helping restore proper wheel support and rotation on the Miata platform. Part number 951-921 is a practical OE-style service part for front hub maintenance on 1990-1997 Mazda Miata and 1999-2005 Mazda Miata models.

Key specifications include steel material, a 24-spline hub design, 4 wheel studs, and M12 x 1.5 wheel studs. The 100 mm bolt circle diameter and listed pilot dimensions help identify the correct front hub assembly for the application. This part cross-references Timken 513155 and MOOG 513152 for the same application.

What This Part Helps Address

• Front wheel bearing noise or rough rotation
• Excessive play in the front hub area
• Worn or damaged hub and bearing components
• Front-end vibration related to hub wear
• Service replacement for a worn Mazda Miata front hub assembly

Installation Notes and Tips

Verify the vehicle year and front position before ordering. Confirm wheel stud size, spline count, and pilot dimensions against the original part to ensure proper match-up. Because this assembly does not include an ABS sensor, check the vehicle’s original front hub configuration before installation. Professional installation and proper torque procedures are recommended for wheel bearing and hub service.

Quality Assurance

Dorman manufactures replacement parts for specific vehicle applications and this hub assembly is built to match the listed fitment and dimensional requirements for Mazda Miata front service.