Bosch 50011491 Disc Brake Rotor - Front Left

Bosch QuietCast Rotor for Lexus Front Left

The Bosch QuietCast Rotor 50011491 is a front left disc brake rotor for select Lexus applications. It is built for drivers replacing a worn or warped rotor on Lexus IS300, IS350, RC300, RC350, GS350, GS300, GS450h, GS200t, IS200t, RC200t, and GS460 models.

Bosch QuietCast brake rotors are part of Bosch’s QuietCast line, a rotor family focused on OE-style fitment and consistent braking performance. This rotor is a direct replacement for the front left position on the listed Lexus vehicles, including driver-side applications noted in the fitment data.

Key Features

• Part number 50011491
• Front left disc brake rotor for select Lexus models
• Bosch QuietCast Rotor line
• OE-style replacement for the listed applications
• Product height: 1.996063 in
• Cross-reference: 4351630041

Detailed Description

Use Bosch QuietCast Rotor 50011491 when replacing the front left brake rotor on compatible Lexus vehicles. This rotor matches the listed fitment for 2011-2025 Lexus IS300, IS350, RC300, RC350, GS350, GS300, GS450h, GS200t, IS200t, RC200t, and GS460 applications, with year coverage varying by model. The QuietCast line is positioned as a direct-fit brake solution for drivers who want a rotor that aligns with the original equipment application.

For shoppers searching terms like front left Lexus brake rotor, Bosch QuietCast rotor for Lexus IS350 front left, or Lexus RC350 driver-side brake rotor, part number 50011491 provides a precise match to the listed vehicles and positions.

What It Helps Address

• Brake pulsation from a worn or uneven rotor surface
• Steering wheel shake during braking
• Brake noise caused by rotor wear or surface irregularity
• Reduced braking smoothness on the front axle
• Rotor replacement needs on the front left side

Installation Notes and Tips

Install only on the listed front left applications. Verify year, model, and position before ordering, since fitment varies across Lexus IS, RC, GS, and GS hybrid variants. Inspect pads, caliper condition, and hub surface during rotor replacement to help ensure proper brake operation and even contact.

Quality Assurance

Bosch QuietCast rotors are part of Bosch’s brake product lineup and are built for direct replacement use on the specified Lexus applications. Confirm fitment with the vehicle’s exact year, model, and front left position before installation.