Bosch 50011291 Disc Brake Rotor - Front

Bosch QuietCast Rotor for Front Brake Service

The Bosch QuietCast Rotor 50011291 is a front disc brake rotor for select Lexus and Toyota applications. With a product height of 1.937008 in, it is built for direct-fit front brake service on vehicles such as the Lexus RX350, RX400h, RX330, and Toyota Highlander.

Bosch QuietCast Rotor parts are positioned as OE-style brake components for drivers who want a straightforward replacement rotor for front axle maintenance. This rotor is listed for Japan-built Lexus RX350 models and other confirmed front applications.

Key Features

• Front disc brake rotor for select Lexus and Toyota vehicles
• Part number 50011291 for catalog and service identification
• Product height: 1.937008 in
• Fits confirmed front applications for Lexus RX350, RX400h, RX330, and Toyota Highlander
• OE-style Bosch QuietCast Rotor line for brake replacement work

Detailed Product Overview

This Bosch QuietCast Rotor 50011291 is a front brake rotor used in service applications where the original rotor has worn thin, developed vibration, or no longer provides consistent braking performance. It is listed for 2007-2009 Lexus RX350 front, 2006-2008 Lexus RX400h front, 2006-2007 Toyota Highlander front, and 2004-2006 Lexus RX330 front. For fitment accuracy, note the Japan-built requirement on the RX350 listing.

This part cross-references 4351248081 for the same application.

What It Helps Address

• Brake pulsation during stopping
• Rotor wear from normal pad contact
• Reduced braking consistency at the front axle
• Noise caused by uneven rotor surfaces
• Service replacement for worn OE front rotors

Installation Notes and Tips

Confirm the vehicle year, make, model, and front position before ordering. Verify Japan-built fitment where noted for the Lexus RX350 application. Inspect brake pads, caliper condition, and hub mounting surfaces during rotor replacement to help ensure proper brake system service. Always follow the vehicle manufacturer’s service procedure and torque specifications.

Quality Assurance

Bosch QuietCast Rotor components are part of Bosch’s brake service lineup and are cataloged for direct replacement use on the listed vehicles. Part number 50011291 is identified for the confirmed front applications shown above.