Bosch 50011248 Disc Brake Rotor - Front

Bosch QuietCast Rotor for Lexus Front Brakes

The Bosch QuietCast Rotor 50011248 is a front disc brake rotor built for select Lexus applications from 1992 through 2005. It is a direct-fit brake rotor option for drivers replacing worn front rotors on Lexus IS300, GS300, GS430, GS400, SC430, SC300, SC400, and LS400 models.

With a product height of 1.996063 in, this Bosch QuietCast Rotor is made for front brake service where consistent rotor dimensions and OE-style fitment matter. The Bosch QuietCast Rotor line focuses on replacement rotors for everyday braking maintenance, and part number 50011248 follows that application-specific approach for Lexus front axle use.

Key Features

• Front disc brake rotor for select Lexus vehicles
• Product height: 1.996063 in
• Fits Lexus IS300 front brake applications from 2001-2005
• Fits Lexus GS300 front brake applications from 1993-2002, including 296mm rotor applications
• Fits Lexus GS430 front brake applications from 2001-2002
• Fits Lexus GS400 front brake applications from 1998-2000
• Fits Lexus SC430 front brake applications for 2002
• Fits Lexus SC300 front brake applications for 2000
• Fits Lexus SC400 front brake applications from 1992-2000
• Fits Lexus LS400 front brake applications from 1992-1994
• Bosch QuietCast Rotor part number 50011248

Fitment Details

• Fits 2001-2005 Lexus IS300, front.
• Fits 1993-2002 Lexus GS300, front. 296mm rotor; Bosch QuietCast Rotor.
• Fits 2001-2002 Lexus GS430, front.
• Fits 2002 Lexus SC430, front.
• Fits 1998-2000 Lexus GS400, front.
• Fits 2000 Lexus SC300, front.
• Fits 1992-2000 Lexus SC400, front.
• Fits 1993-1994 Lexus LS400, front.
• Fits 1992 Lexus LS400, front. Bosch QuietCast Disc Brake Rotor.

What This Rotor Helps Address

• Front brake pulsation caused by rotor wear or uneven rotor surfaces
• Brake noise related to worn or damaged front rotors
• Reduced braking consistency from heat-affected rotor condition
• Service replacement for Lexus front brake maintenance
• Restoration of proper rotor thickness and braking contact surface

Installation Notes and Tips

Confirm front axle fitment by year, model, and rotor specification before installation. For best results, inspect pads, calipers, and hub surfaces during rotor replacement, and clean all mating surfaces before mounting the new rotor. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Bosch QuietCast Rotor 50011248 is an application-specific replacement rotor for select Lexus front brake systems. Verify the vehicle’s rotor size and front brake configuration against the fitment listing before purchase and installation.