Bosch 53011421 Disc Brake Rotor - Front

Bosch QuietCast Front Brake Rotor

The Bosch QuietCast Disc Brake Rotor, part number 53011421, is a front rotor built for select full-size GM trucks and SUVs. It uses an iron alloy construction with a smooth brake surface, vented design, and rust-resistant Geomet coating for consistent braking performance and corrosion protection.

As part of the Bosch QuietCast Disc Brake Rotor line, this rotor focuses on quiet operation and dependable OE-style fitment for vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade. The 53011421 rotor is a direct replacement for front brake service where the original rotor has worn thin, warped, or developed surface corrosion.

• Iron alloy construction for strength and heat handling
• Vented rotor design for front brake applications
• Smooth directional brake surface for even pad contact
• Geomet disc finish with rust-resistant coating
• Coated hat finish for added corrosion resistance
• Conventional rotor design without hub assembly
• 6-bolt mounting pattern with 139.7 mm bolt circle
• Center bore diameter: 78.6 mm
• Nominal thickness: 30 mm; discard thickness: 28 mm

This Bosch QuietCast Disc Brake Rotor 53011421 is used for front brake replacement on 2019-2023 Chevrolet Silverado 1500, 2022 Chevrolet Silverado 1500 LTD, 2019-2023 GMC Sierra 1500, 2022 GMC Sierra 1500 Limited, 2021-2023 Cadillac Escalade, 2021-2023 Cadillac Escalade ESV, 2021-2023 Chevrolet Tahoe, 2021-2023 GMC Yukon, and 2021-2023 GMC Yukon XL. This part cross-references Monroe Shocks & Struts (e.g., 13514522, 13542112) for the same application.

Use this rotor to address brake pulsation from rotor runout, scoring on the braking surface, uneven pad wear, and corrosion-related braking noise. It also serves as a direct replacement when the original front rotor no longer meets thickness specifications.

Installation requires verifying rotor diameter, bolt pattern, center bore, and thickness against the vehicle’s front brake setup before service. Clean the hub mounting surface, inspect pads and calipers, and confirm the directional brake surface is installed correctly for the application.

Bosch QuietCast brake components are built for OE-style replacement needs and consistent fitment across supported applications. Confirm vehicle-specific brake measurements before installation to ensure proper front rotor selection.