Bosch 50011342 Disc Brake Rotor - Front Left

Bosch QuietCast Rotor for Lexus Front Left Braking

The Bosch QuietCast Rotor 50011342 is a front left disc brake rotor for select Lexus applications. Built for vehicles that need a direct-fit brake rotor replacement, it supports consistent front braking performance on compatible Lexus RC300, RC350, GS350, IS300, IS350, GS300, GS450h, GS200t, IS200t, RC200t, GS460, and GS430 models.

Bosch QuietCast Rotor 50011342 is part of the Bosch QuietCast Rotor line, a product family focused on OE-style brake service parts for import vehicles. This rotor is specified for the front left position and is listed for Lexus models across multiple years, making it a practical choice when replacing a worn or damaged driver-side front rotor.

Key Features

• Part number 50011342
• Bosch QuietCast Rotor line for brake service applications
• Front left disc brake rotor
• Product height: 2.003937 in
• Vehicle-specific fitment for select Lexus front brake applications
• Cross-reference part numbers: 4351622011, 4351630061

Detailed Description

This Bosch QuietCast Rotor 50011342 is a replacement disc brake rotor for the front left side on select Lexus vehicles. It is listed for 2006-2021 Lexus applications, including Lexus RC300 front left, Lexus RC350 front left, Lexus GS350 front left, Lexus IS300 front left, Lexus IS350 front left, Lexus GS300 front left, Lexus GS450h front left, Lexus GS200t front left, Lexus IS200t front left, Lexus RC200t front left, Lexus GS460 front left, and Lexus GS430 front left. The Bosch QuietCast Rotor line is positioned for OE-style brake service on import vehicles, and this rotor follows that application focus.

Use part number 50011342 when searching for a front left Lexus brake rotor replacement. For shoppers comparing Lexus GS350 front left rotor options or Lexus IS350 front left brake rotor listings, this part number and fitment data help narrow the correct application quickly.

What It Helps Address

• Rotor wear from normal brake use
• Brake pulsation caused by a worn front rotor
• Uneven braking feel at the front left wheel
• Noise associated with a damaged or out-of-spec rotor
• Service replacement for Lexus front brake maintenance

Installation Notes and Tips

Confirm the vehicle year, model, and front left position before ordering. Match the rotor to the existing brake setup on the vehicle and inspect pads, caliper condition, and hub surfaces during service. For Lexus RC300 front left rotor replacement, Lexus GS350 front left rotor replacement, or Lexus IS350 front left rotor replacement, verify the application against the vehicle’s brake configuration before installation.

Quality Assurance

Bosch QuietCast Rotor 50011342 is cataloged as a Bosch brake component for specified Lexus applications. The part number 50011342 and the listed interchange references 4351622011 and 4351630061 provide additional identification support for fitment verification.