DuraGo BR3203 Disc Brake Rotor - Rear

Overview of DuraGo BR3203 Disc Brake Rotor

The DuraGo BR3203 is a solid disc brake rotor designed specifically for select Mercedes-Benz models. Crafted from durable cast iron, this rotor provides reliable braking performance for vehicles such as the 300D, 380SE, and 560SL.

• Material: Cast iron for strength and heat dissipation
• Construction: Full cast solid rotor with drum-in-hat design
• Outside Diameter: 10.98 inches (279 mm)
• Nominal Thickness: 0.39 inches (10 mm)
• Discard Thickness: 0.33 inches (8.3 mm)
• Mounting Bolt Hole Quantity: 5 with 0.59 inch (15 mm) diameter holes
• Non-directional brake surface for versatile installation
• Compatible with multiple Mercedes-Benz models from 300D to 560SEL

Detailed Product Description

The DuraGo BR3203 disc brake rotor is engineered with a full cast iron construction, ensuring consistent braking performance and durability. Its solid, non-vented design features a drum-in-hat type rotor, which integrates the parking brake drum within the rotor assembly. This design is common in many Mercedes-Benz vehicles, including the 300SDL and 500SEL. The rotor measures 10.98 inches in outside diameter and has a nominal thickness of 0.39 inches, with a discard thickness of 0.33 inches, indicating when replacement is necessary to maintain safe braking.

The rotor includes five mounting bolt holes arranged on a 4.41 inch (112 mm) bolt circle diameter, with each hole measuring 0.59 inches in diameter. The center hole diameter is 2.64 inches (67 mm), ensuring proper fitment on the hub. This rotor does not include an ABS tone ring and features a non-directional braking surface, allowing for flexible installation without concern for rotor orientation.

Compatible Mercedes-Benz Models

• 300D, 300SD, 300SDL, 300SE, 300SEL, 300TD
• 350SD, 350SDL
• 380SE, 380SEC, 380SEL, 380SL, 380SLC
• 420SEL
• 500SEC, 500SEL
• 560SEC, 560SEL, 560SL

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Restores braking efficiency on Mercedes-Benz 300D and 380SE models
• Eliminates noise and vibration from uneven rotor surfaces
• Addresses rotor thickness below discard limits to maintain safety
• Supports proper parking brake function with drum-in-hat design

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surface to prevent rotor runout and vibration
• Torque mounting bolts to manufacturer specifications for secure fit
• Check compatibility with vehicle ABS system as this rotor lacks tone ring
• Inspect brake pads and hardware during rotor replacement for optimal performance

Quality Assurance and Warranty

DuraGo manufactures the BR3203 rotor to meet or exceed OEM specifications for fit and function on compatible Mercedes-Benz vehicles. The cast iron construction provides reliable heat dissipation and wear resistance. While no rust-resistant coating is applied, proper maintenance can help extend rotor life. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.