DuraGo BR900356 Disc Brake Rotor - Rear

Durable Disc Brake Rotor for Mazda CX-9

The DuraGo BR900356 disc brake rotor is engineered to provide reliable braking performance for your Mazda CX-9. Crafted from cast iron with a full cast construction, this rotor is designed to meet the demands of everyday driving and maintain consistent stopping power.

• Material: Cast iron for durability and heat dissipation
• Nominal thickness: 0.71 inches (18 mm)
• Discard thickness: 0.63 inches (16 mm)
• Vented rotor design for improved cooling
• Drum-in-hat type rotor with 5 mounting bolt holes
• Outside diameter: 12.8 inches (325 mm)
• Center hole diameter: 2.83 inches (72 mm)
• Non-directional brake surface for versatile installation

Technical Details and Construction

The DuraGo BR900356 rotor features a vented design that helps dissipate heat more effectively than solid rotors, reducing the risk of brake fade during extended use. Its full cast iron construction ensures structural integrity and consistent performance. The rotor measures 12.8 inches in outside diameter and has a nominal thickness of 0.71 inches, with a discard thickness of 0.63 inches, indicating when replacement is necessary. The drum-in-hat design integrates the parking brake drum, making it compatible with the Mazda CX-9's braking system. This rotor includes five mounting bolt holes with a bolt circle diameter of 4.5 inches (114.3 mm) and a center hole diameter of 2.83 inches (72 mm), ensuring proper fitment.

Compatible Vehicles and Applications

This disc brake rotor is specifically compatible with Mazda CX-9 models, providing a direct replacement for worn or damaged rotors. It is designed for vehicles equipped with drum-in-hat type rotors and does not include an ABS tone ring. The non-directional brake surface allows for flexible installation without concern for rotor orientation.

• Replaces worn or warped rotors causing vibration or noise
• Restores braking efficiency and pedal feel
• Addresses rotor thickness below discard limits
• Eliminates brake pulsation and uneven pad wear
• Supports proper parking brake function with drum-in-hat design

Installation Notes and Tips

When installing the DuraGo BR900356 rotor on your Mazda CX-9, ensure the rotor surface is clean and free of any contaminants before mounting. Verify that the rotor thickness is within specifications and replace if below discard thickness. Use proper torque specifications for the five mounting bolts to avoid rotor warping. Since this rotor does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system. It is recommended to replace brake pads simultaneously for optimal braking performance.

Quality Assurance and Warranty

DuraGo manufactures this disc brake rotor to meet or exceed OEM standards for fit, form, and function. The cast iron material and vented design contribute to consistent braking performance and durability. While no rust-resistant coating is applied, proper maintenance can help extend rotor life. The BR900356 part number is backed by DuraGo’s quality control processes, ensuring reliable replacement for your Mazda CX-9 braking system.