Dynamic Friction 830-56020L Disc Brake Rotor - Rear Left

Overview

The Dynamic Friction DFC Geoperformance Rotor is a drilled and slotted disc brake rotor built for rear left applications on select full-size Ford and Mercury platforms. Part number 830-56020L combines a vented design with a directional braking surface for consistent rotor behavior under repeated stops.

Compatible With Ford Crown Victoria, Mercury Grand Marquis, and Mercury Marauder applications, this rotor is built around a 295 mm outside diameter, 114.3 mm bolt circle, and 70.7 mm center hole. The Geospec silver gray hat finish and rust-resistant coating add corrosion protection where exposed metal is a concern.

Key Features

• Drilled and slotted braking surface for improved pad bite and surface cleaning.
• Vented rotor construction for heat management during repeated braking.
• Directional surface design for consistent rotation-specific performance.
• Rust-resistant coating with Geospec silver gray hat finish.
• 5-lug pattern with 114.3 mm bolt circle and 14.3 mm lug holes.

Detailed Description

Dynamic Friction part number 830-56020L is a rear left disc brake rotor for 2003-2011 Ford Crown Victoria, 2003-2011 Mercury Grand Marquis, and 2003-2004 Mercury Marauder applications. The slotted X-drilled surface is paired with a vented rotor body to help maintain braking consistency, while the plain disc finish and coated hat support a clean, service-ready appearance. If you are replacing a worn rotor on a Ford Crown Victoria or Mercury Grand Marquis, this rotor matches the listed fitment and dimensions for the specified applications.

What It Helps Address

• Brake pulsation caused by uneven rotor wear.
• Reduced braking response from worn or heat-affected rotor surfaces.
• Surface corrosion on exposed rotor areas.
• Noise and pad glazing associated with degraded braking surfaces.
• Fitment issues when replacing the correct rear left rotor for the listed vehicles.

Installation Notes

Fits 2003-2011 Ford Crown Victoria, rear left. Fits 2003-2011 Mercury Grand Marquis, rear left. Fits 2003-2004 Mercury Marauder, rear left. Verify rotor dimensions, bolt pattern, and position before installation. Part number 830-56020L should be matched to the listed rear left application only.

Quality Assurance

Dynamic Friction’s Geoperformance Rotor line focuses on drilled and slotted rotor construction with corrosion-resistant finishing for service applications that require consistent braking surface geometry.