Bosch 53011483 Disc Brake Rotor - Front

Bosch QuietCast Front Brake Rotor for Mazda

The Bosch QuietCast Disc Brake Rotor, part number 53011483, is a front replacement rotor built for Mazda applications that call for a 295 mm vented disc with a smooth braking surface. It uses an iron alloy construction with Geomet disc finish, a coated hat, and a rust-resistant coating to support consistent braking performance and corrosion protection.

Key Features

• Fits 2019-2025 Mazda 3, front
• Fits 2020-2025 Mazda CX-30, front
• Fits 2023 Mazda 3 Sport, front
• Iron alloy construction with vented design
• 295 mm outside diameter and 25 mm nominal thickness
• Smooth brake surface with directional braking surface
• Geomet disc finish and coated hat finish
• Rust-resistant coating for added surface protection
• 5-bolt mounting pattern with 114.3 mm bolt circle diameter
• Center bore diameter: 68 mm

QuietCast Rotor Line Details

Bosch QuietCast brake rotors are built for drivers who want a direct-fit replacement rotor with attention to surface finish, corrosion resistance, and consistent pedal feel. This rotor, part number 53011483, follows that approach with a smooth braking surface, vented construction, and protective finishes that help maintain appearance and service life in everyday driving.

Detailed Description

This Bosch QuietCast Disc Brake Rotor is a conventional, rotor-without-hub assembly replacement for front axle service on select Mazda 3, Mazda CX-30, and Mazda 3 Sport models. The vented iron alloy design measures 295 mm in outside diameter, 25 mm nominal thickness, and 46.5 mm overall height, with a 68 mm center bore and 5 mounting bolt holes on a 114.3 mm bolt circle. The directional brake surface and smooth finish support even contact across the pad face, while the Geomet disc finish, coated hat, and rust-resistant coating help protect exposed surfaces. This part cross-references Monroe Shocks & Struts (e.g., BDWK33251, BEET33251) for the same application.

What This Rotor Helps Address

• Front brake pulsation from worn or uneven rotors
• Brake noise caused by damaged or heat-spotted disc surfaces
• Corrosion on exposed rotor surfaces
• Reduced braking consistency from thickness variation
• Service replacement needs on Mazda 3 and Mazda CX-30 front brakes

Installation Notes and Tips

Confirm rotor dimensions, bolt pattern, and center bore before installation. This rotor is for front position use only and does not include bearings. Inspect pads, caliper hardware, and hub condition during brake service, and clean the hub mounting surface before installing the rotor to help prevent runout-related issues.

Quality Assurance

Bosch QuietCast rotors are engineered as direct replacement brake components with corrosion-resistant finishes and application-specific fitment for select Mazda models. Part number 53011483 is listed for 2019-2025 Mazda 3 front, 2020-2025 Mazda CX-30 front, and 2023 Mazda 3 Sport front applications.