Bosch 50011501 Disc Brake Rotor - Rear

Bosch QuietCast Rear Rotor for Toyota and Lexus

The Bosch QuietCast Rotor 50011501 is a rear disc brake rotor built for select Toyota and Lexus applications. With a product height of 2.468504 in, it is listed for rear brake service on the Toyota Sienna, Toyota Highlander, Lexus RX350, and Lexus RX450h.

Key Features

• Bosch QuietCast Rotor line for rear disc brake replacement
• Product height: 2.468504 in
• Direct-fit application coverage for rear brake service
• Cross-references OE-style part numbers 424310E020 and 4243148070
• Part number 50011501 for catalog lookup and fitment verification

Product Details

Bosch QuietCast Rotor 50011501 is a rear brake rotor for select Toyota Sienna, Toyota Highlander, Lexus RX350, and Lexus RX450h models. The QuietCast Rotor line is Bosch’s brake rotor offering for replacement service, and this part is cataloged for rear position applications across multiple model years. Use part number 50011501 when matching the rotor to the vehicle and rear brake position.

This part cross-references 424310E020 and 4243148070 for the same application.

Vehicle Fitment

• Fits 2019-2020 Toyota Sienna, rear
• Fits 2014-2019 Toyota Highlander, rear
• Fits 2011-2018 Toyota Sienna, rear
• Fits 2010-2015 Lexus RX350, rear
• Fits 2010-2015 Lexus RX450h, rear

Common Brake Issues This Rotor Can Address

• Rear brake rotor wear from normal braking use
• Brake pulsation caused by rotor surface variation
• Reduced braking consistency from a worn rear rotor
• Noise related to rotor condition during braking
• Service replacement for rear brake maintenance on listed Toyota and Lexus models

Installation Notes and Tips

Confirm rear axle fitment by year, make, model, and brake position before ordering. Inspect pads, caliper condition, and hub mounting surfaces during rotor replacement to help ensure proper brake service. Verify the rotor matches the vehicle’s rear brake application and compare the existing part number to 50011501 when possible.

Quality Assurance

Bosch QuietCast brake components are part of Bosch’s brake service lineup, with cataloged OE-style cross-reference coverage for the listed applications. Verify fitment against the vehicle and existing rotor reference numbers before installation.