Bosch QuietCast front brake rotor 328 mm - Direct-fit, corrosion-resistant OEM-style vane, ABS-ready

BOSCH QuietCast 50011479 is a precision-balanced front brake rotor engineered to deliver quiet, consistent stopping performance for select Lexus and Toyota models.

Designed as a direct-fit replacement part, this Bosch QuietCast rotor combines factory-level balance, corrosion resistance, and OEM-style cooling vanes to help maintain braking smoothness and component longevity. It’s finished with an aluminum/zinc protective coating and includes application-specific features like ABS tone rings where required, making it suitable for modern vehicles that rely on electronic stability and anti-lock systems.

How does this rotor reduce noise and pedal pulsation?

The rotor is mill precision balanced at the factory to ensure even weight distribution across the disc. Balanced rotors minimize vibration transmitted through the brake system, reducing pedal pulsation and audible brake noise during deceleration.

• Factory mill precision balancing for even mass distribution
• OEM-style vane layout to lower vibration generation
• Engraved Bosch branding to confirm genuine part and discard info

Will this rotor manage heat and extend service life?

Yes — the rotor uses an OEM-style internal vane configuration that helps move air through the disc to dissipate heat more effectively than solid designs. Better heat control reduces the risk of warping and slows material degradation, which supports longer rotor life and consistent braking feel over time.

• Vane design channels airflow for improved cooling
• Reduced vibration from better thermal stability
• Discard thickness marking so you can tell when replacement is needed

Is it protected against rust and compatible with modern vehicle electronics?

The rotor has an aluminum/zinc protective finish to resist rust and corrosion, keeping the visible surface cleaner and helping components last longer, especially with open-style wheels. When required for the application, Bosch includes an OEM-style ABS tone ring so the rotor works correctly with anti-lock brakes and traction control systems.

• Aluminum/zinc coating for corrosion resistance and improved appearance
• ABS tone ring present on applications that need it for electronic systems
• Direct-fit design reduces installation complexity and alignment issues

Which vehicles and specifications does this rotor fit?

This single front rotor is sized at 328 mm and matches factory specifications for a range of Lexus and Toyota models. Vehicle trim, engine, and model year affect fitment — always verify compatibility with your exact year and trim before ordering.

• Front rotor diameter: 328 mm
• Compatible with select Lexus NX200t (2015–17), NX300 (2018–21), NX300h (2015–21), RX350 (2010–15), RX450h (2010–15)
• Compatible with select Toyota Highlander (2008–19) and Sienna (2011–20)

Who is this for? If you drive one of the compatible Lexus or Toyota models and want a factory-quality replacement rotor that emphasizes quiet operation, heat control, and corrosion resistance, the Bosch QuietCast 50011479 is a solid choice. It’s aimed at technicians and DIYers who expect direct-fit components with OEM-style performance, and owners who prioritize reliable braking, reduced noise, and parts that support ABS/traction control systems. Be sure to confirm exact fitment for your vehicle before purchase.