Bosch 42011148 Disc Brake Rotor - Rear

Bosch QuietCast Rotor for Porsche Boxster

The Bosch QuietCast Rotor 42011148 is a rear disc brake rotor for 1997-2004 Porsche Boxster models with 290mm rear brake fitment. Built for direct replacement use, it supports consistent braking performance on the rear axle while matching the application-specific dimensions required for this platform.

Key Features

• Rear disc brake rotor for Porsche Boxster applications
• Application-specific 290mm rear fitment
• Product height: 2.952756 in
• Bosch QuietCast Rotor line for OE-style brake service
• Part number 42011148 for catalog and cross-reference lookup

Detailed Description

Bosch QuietCast Rotor 42011148 is engineered for rear brake service on the Porsche Boxster from 1997 through 2004. The QuietCast Rotor line focuses on replacement parts that align with vehicle-specific brake dimensions and service requirements, making this rotor a practical choice when replacing a worn rear disc on the Boxster. The 290mm rear specification is important for proper brake system match, and the listed height of 2.952756 in provides a useful dimensional reference during parts verification. This part number, 42011148, is also helpful when confirming the correct rear rotor for Porsche Boxster brake maintenance.

This part cross-references Porsche OE numbers 98635240104 and 98635240301 for the same application.

What It Helps Address

• Rear rotor wear from normal brake service intervals
• Brake pulsation caused by rotor surface deterioration
• Reduced braking consistency from an out-of-spec rear disc
• Noise or vibration associated with a worn rear brake rotor
• Fitment issues when replacing the rear rotor on a Porsche Boxster

Installation Notes and Tips

Verify rear axle fitment, rotor diameter, and vehicle year before installation. For this application, confirm the 290mm rear brake specification on 1997-2004 Porsche Boxster models. Inspect related brake components during service and follow the vehicle manufacturer’s torque and bedding procedures after installation. Use the part number 42011148 to confirm the correct Bosch QuietCast Rotor before assembly.

Quality Assurance

Bosch QuietCast Rotor parts are cataloged for application-specific brake replacement, with fitment and dimensional details provided to support accurate parts selection for Porsche Boxster rear brake service.