Bosch 53011482 Disc Brake Rotor - Front

Bosch QuietCast Rotor for Mazda 3 Front Brakes

The Bosch QuietCast Disc Brake Rotor, part number 53011482, is a front brake rotor built for select Mazda applications. It uses an iron alloy construction with a smooth directional braking surface and a vented design to support consistent braking performance.

Compatible With 2019-2025 Mazda 3 front brake service and 2019-2023 Mazda 3 Sport front brake service, this Bosch QuietCast Disc Brake Rotor is finished with Geomet on the disc and a coated hat for added corrosion resistance. The 280 mm outside diameter, 25 mm nominal thickness, and 68 mm center bore are key fitment details for matching the correct front rotor specification.

Key Features

• Brand: Bosch QuietCast Disc Brake Rotor
• Part number: 53011482
• Iron alloy rotor construction
• Vented, conventional rotor design
• Smooth brake surface with directional braking surface
• Geomet disc finish and coated hat finish
• Rust resistant coating
• 5-bolt mounting pattern with 114.3 mm bolt circle diameter
• Rotor without hub assembly

Product Details

Bosch QuietCast brake rotors are positioned as a refined OE-style rotor line for drivers who want a direct replacement part with corrosion protection and consistent surface finish. This rotor is specified as a conventional, rotor-only design with no hub assembly and no bearings included. The 23 mm discard thickness and 25 mm nominal thickness provide the dimensional reference needed when servicing the front brakes on a Mazda 3 or Mazda 3 Sport.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Brake pulsation caused by worn or uneven rotor surfaces
• Reduced braking consistency from heat-worn front rotors
• Corrosion on exposed rotor surfaces
• Noise related to damaged or uneven brake contact surfaces
• Front brake service needs on Mazda 3 and Mazda 3 Sport models

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, center bore, and thickness before installation. This rotor is directional, so install it according to the marked rotation or vehicle-side orientation if applicable. Inspect pads, caliper hardware, and hub condition during brake service to help ensure even contact on the new rotor.

Quality Assurance

Bosch QuietCast rotors are built with corrosion-resistant finishes and a smooth braking surface to support dependable replacement service. Part number 53011482 is engineered for the listed Mazda front applications and should be matched to the vehicle’s brake specifications before installation.