DuraGo BR31172 Disc Brake Rotor - Front

Overview of DuraGo BR31172 Disc Brake Rotor

The DuraGo BR31172 disc brake rotor is engineered for reliable braking performance on select Lexus models. Designed with vented construction and cast iron material, this rotor supports effective heat dissipation and consistent stopping power for vehicles like the Lexus GS300 and IS300.

• Material: Durable cast iron for strength and heat resistance
• Vented rotor design to improve cooling during braking
• Nominal thickness of 1.26 inches (32 mm) with discard thickness at 1.18 inches (30 mm)
• Overall height of 2 inches (50.8 mm) for proper fitment
• Outside diameter of 11.65 inches (296 mm) matching OEM specifications
• Five mounting bolt holes with a 4.5 inch (114.3 mm) bolt circle diameter
• Non-directional brake surface for versatile installation
• Conventional rotor type compatible with drum-in-hat setups

Detailed Product Description

The DuraGo BR31172 is a full cast, vented disc brake rotor constructed from cast iron, providing a balance of durability and thermal management. Its vented design allows air to flow between the rotor surfaces, reducing heat buildup and minimizing brake fade during extended use. The rotor’s dimensions, including an outside diameter of 11.65 inches and a nominal thickness of 1.26 inches, ensure compatibility with various Lexus models such as the GS400, LS400, and SC430. 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 Vehicles and Applications

• Lexus GS300, GS400, GS430
• Lexus IS300
• Lexus LS400
• Lexus SC300, SC400, SC430

This rotor is designed to replace worn or damaged rotors on these specific Lexus models, restoring braking efficiency and safety.

Common Issues Addressed by DuraGo BR31172

• Brake pulsation caused by warped rotors
• Reduced braking performance due to rotor wear
• Excessive brake noise from uneven rotor surfaces
• Overheating and brake fade during heavy braking
• Corrosion-related rotor surface degradation (note: this rotor does not have rust-resistant coating)

Installation Notes and Tips

When installing the DuraGo BR31172 rotor, ensure the mounting surface is clean and free of debris to maintain proper rotor alignment. Since this rotor is non-directional, it can be installed on either side of the vehicle without concern for rotation direction. Verify that the rotor thickness is above the discard thickness of 1.18 inches before installation. It is recommended to replace brake pads simultaneously to ensure optimal braking performance. Proper torque specifications for the five mounting bolts should be followed according to the vehicle manufacturer’s guidelines.

Quality Assurance and Warranty

DuraGo manufactures the BR31172 rotor to meet or exceed OEM standards for fit, form, and function. While this rotor does not feature a rust-resistant coating, its cast iron construction provides reliable durability under normal operating conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.