DuraGo BR3477 Disc Brake Rotor - Front

Overview of DuraGo BR3477 Disc Brake Rotor

The DuraGo BR3477 is a cast iron vented disc brake rotor designed for select Mercedes-Benz models including the 300SD, 380SE, 380SEL, 380SL, 380SLC, and 500SEL. Engineered to meet the demands of these vehicles, this rotor provides reliable braking performance with precise fitment.

• Material: Durable cast iron construction
• Vented design for improved heat dissipation
• Nominal thickness of 0.87 inches (22 mm)
• Outside diameter of 10.94 inches (278 mm)
• 5 mounting bolt holes with 4.41 inch (112 mm) bolt circle diameter
• Conventional, non-directional brake surface
• Overall height of 2.69 inches (68.3 mm)
• Center hole diameter of 3.15 inches (80 mm)

Detailed Product Description

The DuraGo BR3477 disc brake rotor is constructed from full cast iron, providing a solid and durable braking surface suitable for the braking systems of Mercedes-Benz 300SD, 380SE, 380SEL, 380SL, 380SLC, and 500SEL models. Its vented rotor design enhances heat dissipation during braking, reducing the risk of brake fade under normal driving conditions. The rotor features a nominal thickness of 0.87 inches (22 mm) and a discard thickness of 0.76 inches (19.4 mm), ensuring it meets OEM specifications for thickness and wear limits.

This rotor is designed with a conventional, non-directional brake surface, making it compatible with standard brake pads and allowing for flexible installation. The 5 mounting bolt holes with a 4.41 inch (112 mm) bolt circle diameter ensure secure attachment to the vehicle’s hub assembly. The overall height of 2.69 inches (68.3 mm) and center hole diameter of 3.15 inches (80 mm) are engineered for precise fitment on the specified Mercedes-Benz models.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Mercedes-Benz 300SD, 380SE, 380SEL, 380SL, 380SLC, and 500SEL
• Resolves brake pulsation caused by uneven rotor surfaces
• Addresses reduced braking efficiency due to rotor thinning
• Eliminates noise and vibration from damaged or scored rotors
• Restores proper rotor thickness for safe braking performance

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.76 inches) before installation
• Clean mounting surface and hub to prevent rotor runout
• Torque mounting bolts to manufacturer specifications for secure fitment
• Check brake pads for wear and replace if necessary during rotor installation
• Perform a test drive to verify braking performance after installation

Quality Assurance and Warranty

The DuraGo BR3477 rotor is manufactured to meet or exceed OEM standards for fit, form, and function on compatible Mercedes-Benz models. While this rotor does not include a rust-resistant coating, its full cast iron construction provides reliable durability under normal operating conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.