Bosch 20010309 Disc Brake Rotor - Rear

Bosch QuietCast Rear Disc Brake Rotor

The Bosch QuietCast Rotor 20010309 is a rear disc brake rotor for select Ford and Mercury applications. Built for vehicles that need a direct-fit rear braking component, it supports consistent rotor replacement on the Ford Explorer, Ford Ranger, Ford Explorer Sport, and Mercury Mountaineer.

Bosch QuietCast Rotor products are positioned as OE-style brake components for drivers who want a straightforward replacement part with application-specific fitment. This rotor is listed for rear use on 1995-2001 Ford Explorer, 1998-2002 Ford Ranger, 2001-2003 Ford Explorer Sport, and 1997-2001 Mercury Mountaineer.

Key Features

• Rear disc brake rotor for select Ford and Mercury vehicles
• Bosch QuietCast Rotor line for OE-style brake service
• Product height: 2.295276 in
• Application-specific fitment for rear brake replacement
• Part number 20010309 for catalog and service reference

Fitment Details

• Fits 2001-2003 Ford Explorer Sport, rear.
• Fits 1998-2002 Ford Ranger, rear.
• Fits 1995-2001 Ford Explorer, rear.
• Fits 1997-2001 Mercury Mountaineer, rear.

What This Rotor Helps Address

• Rear brake rotor wear from normal driving and heat cycling
• Brake pulsation caused by a worn or uneven rotor surface
• Reduced braking consistency during routine stop-and-go use
• Noise or vibration associated with rotor deterioration
• Service replacement needs on Ford Explorer, Ford Ranger, and Mercury Mountaineer rear brakes

Installation Notes and Tips

Verify rear axle application and match the rotor to the vehicle listed above before installation. Inspect pads, caliper condition, and hub surfaces during brake service so the new rotor seats correctly. Confirm rotor dimensions and mounting surfaces against the removed part, especially on Ford Explorer and Ford Ranger rear brake jobs.

Quality Assurance

Bosch QuietCast Rotor 20010309 is part of Bosch’s QuietCast brake line, which is focused on OE-style replacement fitment for brake service. Use the confirmed vehicle listing to verify application before purchase.