DuraGo BR54105 Disc Brake Rotor - Rear

DuraGo BR54105 Rear Drum-In-Hat Rotor

The DuraGo BR54105 is a rear disc brake rotor built for vehicles that use a drum-in-hat parking brake design. Made from cast iron with a full cast construction, it is sized for direct replacement service on select Ford Crown Victoria, Mercury Grand Marquis, and Mercury Marauder applications.

Key Features

• Part number BR54105 for rear brake service
• Cast iron, full cast rotor construction
• Vented rotor design for rear disc brake applications
• Non-directional brake surface for consistent pad contact
• Drum-in-hat rotor configuration
• 5-bolt mounting pattern with 114.3 mm bolt circle
• 11.61 in. outside diameter and 2.3 in. overall height
• Center hole diameter: 70.7 mm

Detailed Description

DuraGo BR54105 is engineered as a rear drum-in-hat disc brake rotor for 2003-2011 Ford Crown Victoria, 2003-2011 Mercury Grand Marquis, and 2003-2004 Mercury Marauder models. The rotor uses cast iron construction and a vented design to match the original brake layout on these rear axle applications. Its non-directional braking surface supports even pad contact during service, while the 5-lug, 114.3 mm bolt pattern and 70.7 mm center bore help ensure proper fitment. DuraGo manufactures brake components through ISO-certified factories and focuses on fit, form, and function for aftermarket replacement needs. This part cross-references Raybestos Brakes 680129 for the same application.

Vehicle Fitment

• Fits 2003-2011 Ford Crown Victoria, rear
• Fits 2003-2011 Mercury Grand Marquis, rear
• Fits 2003-2004 Mercury Marauder, rear

What It Helps Address

• Rear brake rotor wear and scoring
• Brake pulsation caused by rotor thickness variation
• Reduced braking performance from an out-of-spec rotor
• Noise or vibration during rear brake service
• Replacement needs for drum-in-hat rear brake systems

Installation Notes

Verify rotor dimensions, bolt pattern, center bore, and rear drum-in-hat configuration before installation. Inspect pads, caliper hardware, and parking brake components during service, and confirm the rotor meets minimum discard thickness before use. For best results, clean the hub mounting surface and follow the vehicle manufacturer’s brake service procedure.

Quality Assurance

DuraGo brake rotors are produced in ISO-certified factories and built to meet fit, form, and function requirements for aftermarket replacement. Part number BR54105 is backed by DuraGo’s long-running brake program and cataloging support for professional repair applications.