DuraGo BR31253 Disc Brake Rotor - Rear

Overview of DuraGo BR31253 Disc Brake Rotor

The DuraGo BR31253 is a solid disc brake rotor designed specifically for select Lexus models including the GS300, GS400, GS430, IS300, and SC430. Crafted from durable cast iron, this rotor offers reliable braking performance for vehicles requiring a drum-in-hat type rotor.

• Material: Cast iron for strength and heat dissipation
• Construction: Full cast solid rotor
• Outside Diameter: 12.09 inches (307 mm)
• Nominal Thickness: 0.47 inches (12 mm)
• Discard Thickness: 0.41 inches (10.5 mm)
• Mounting Bolt Hole Quantity: 5 with 0.58 inch (14.8 mm) diameter holes
• Mounting Bolt Hole Circle Diameter: 4.5 inches (114.3 mm)
• Center Hole Diameter: 2.44 inches (62.1 mm)
• Overall Height: 2.51 inches (63.8 mm)
• Non-directional brake surface, no ABS tone ring included

Detailed Product Description

The DuraGo BR31253 disc brake rotor is engineered as a solid, full cast iron rotor with a drum-in-hat design, suitable for Lexus GS300, GS400, GS430, IS300, and SC430 models. Its 12.09-inch diameter and 0.47-inch nominal thickness provide a stable braking surface that meets OEM specifications. The rotor’s 5-bolt mounting pattern with a 4.5-inch bolt circle diameter ensures proper fitment and secure installation. This rotor does not include an ABS tone ring and features a non-directional braking surface, making it compatible with standard brake pads and setups. While it lacks a rust-resistant coating, the cast iron construction offers consistent performance under typical driving conditions.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Lexus GS300, GS400, GS430, IS300, and SC430
• Addresses brake pulsation and vibration issues caused by uneven rotor surfaces
• Restores proper braking performance and pedal feel
• Suitable for vehicles experiencing rotor thickness below discard limits
• Ideal for maintaining OEM braking specifications with a drum-in-hat rotor design

Installation Notes and Tips

• Verify rotor thickness before installation; discard thickness is 0.41 inches (10.5 mm)
• Ensure mounting surfaces are clean and free of debris for proper rotor seating
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Check compatibility with brake pads and calipers specific to Lexus GS and IS series
• Inspect wheel bearings and hub assembly during rotor replacement for optimal performance

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet industry standards for durability and performance. The BR31253 rotor undergoes quality control inspections to ensure dimensional accuracy and material integrity. While this product does not include a rust-resistant coating, it is designed to provide consistent braking under normal operating conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.