DuraGo BR31339 Disc Brake Rotor - Rear

Overview of DuraGo BR31339 Disc Brake Rotor

The DuraGo BR31339 is a solid disc brake rotor designed for reliable braking performance on select Hyundai and Kia models. Engineered with full cast iron construction, this rotor provides consistent stopping power and durability for vehicles like the Hyundai Sonata and Kia Optima.

• Material: Full cast iron for strength and heat dissipation
• Rotor Type: Solid, non-directional brake surface
• Design: Drum-in-hat construction with 5 mounting bolt holes
• Dimensions: 10.31 inch (262 mm) outside diameter, 0.39 inch (10 mm) nominal thickness
• Compatible with Hyundai Magentis, Sonata, Tucson and Kia Optima, Sportage, XG300, XG350

Detailed Product Features and Specifications

The BR31339 rotor features a solid, non-vented design made from cast iron, which offers reliable heat management during braking without the complexity of vented rotors. Its drum-in-hat construction integrates a parking brake drum, making it suitable for vehicles equipped with rear drum parking brakes. The rotor measures 10.31 inches in diameter with a nominal thickness of 0.39 inches and a discard thickness of 0.33 inches, ensuring it meets OEM specifications for safe replacement. The 5 mounting bolt holes with a 114.3 mm bolt circle diameter provide secure fitment on compatible Hyundai and Kia models. This rotor does not include an ABS tone ring and does not have rust-resistant coating, so proper maintenance is recommended to prevent corrosion over time.

Compatible Vehicles and Applications

• Hyundai Magentis (also known as Sonata in some markets)
• Hyundai Sonata
• Hyundai Tucson
• Kia Optima
• Kia Sportage
• Kia XG300 and XG350

This rotor is designed specifically for rear disc brake systems with drum-in-hat parking brake configurations on these models, ensuring proper fit and function.

Common Issues Addressed by DuraGo BR31339 Rotor

• Brake pulsation or vibration due to warped rotors
• Reduced braking efficiency from worn or thin rotors
• Noise or squealing caused by uneven rotor surfaces
• Parking brake malfunction related to drum-in-hat rotor wear
• Overheating and brake fade during extended braking

Installation Notes and Tips

When installing the DuraGo BR31339 rotor, ensure the rotor surface is clean and free of rust or debris before mounting. Verify the rotor thickness is above the discard thickness of 0.33 inches to maintain safety standards. Since this rotor lacks a rust-resistant coating, applying a high-temperature anti-seize compound on the hub surface can help prevent corrosion and ease future removal. Confirm compatibility with your vehicle’s rear drum-in-hat brake system and torque mounting bolts to manufacturer specifications.

Quality Assurance and Warranty

DuraGo manufactures the BR31339 rotor to meet or exceed OEM standards for material and dimensional accuracy. The full cast iron construction ensures durability under normal operating conditions. While this rotor does not include a rust-resistant coating, proper maintenance will extend its service life. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.