Bosch 50011243 Disc Brake Rotor - Front

Bosch QuietCast Rotor for Toyota Front Brakes

The Bosch QuietCast Rotor, part number 50011243, is a front disc brake rotor for select Toyota applications. It is built for vehicles that need a direct-fit rotor for consistent front brake service, including Toyota Tacoma, Toyota FJ Cruiser, and Toyota 4Runner fitments.

Key Features

• Front disc brake rotor for select Toyota models
• Bosch QuietCast Rotor line for OE-style brake service
• Product height: 2.653543 in
• Fits applications with front rotor fitment only
• Cross-reference part numbers: 4351204052, 4351235322

Fitment Details

• Fits 2020-2023 Toyota Tacoma, front. Bosch QuietCast Disc Brake Rotor.
• Fits 2005-2019 Toyota Tacoma, front. 6 lug; Bosch QuietCast Rotor.
• Fits 2007-2014 Toyota FJ Cruiser, front. Bosch QuietCast Rotor.
• Fits 2003-2009 Toyota 4Runner, front. 319mm rotor; Bosch QuietCast Rotor.

Product Overview

Bosch QuietCast Rotor part number 50011243 is a front brake rotor engineered for Toyota Tacoma, Toyota FJ Cruiser, and Toyota 4Runner applications listed above. The Bosch QuietCast Rotor line is positioned as an OE-style brake service option for drivers replacing worn front rotors on 2003-2023 Toyota platforms with the specified fitment. This rotor is identified for front use only and should be matched to the vehicle’s brake configuration before installation.

Common Brake Issues It Can Address

• Front brake pulsation caused by rotor wear or uneven surface condition
• Brake noise related to worn front rotors
• Reduced braking smoothness during everyday driving
• Service replacement for rotors that no longer meet thickness or condition requirements
• Front-end brake maintenance on Tacoma, FJ Cruiser, and 4Runner models

Installation Notes and Tips

Confirm the vehicle year, model, and front brake configuration before ordering. This rotor is listed for front applications only, including 6-lug Tacoma fitments and the 319mm 4Runner application noted in the fitment data. Inspect pads, caliper condition, and hub surfaces during brake service to help ensure proper rotor seating and braking performance.

Quality Assurance

Bosch QuietCast Rotor part number 50011243 is backed by Bosch brand manufacturing standards for brake service parts. Verify all fitment details against the vehicle before installation.