PowerStop JBR1742EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number JBR1742EVC) is engineered for reliable braking performance on Mazda CX-9 vehicles. Designed as a solid disc brake rotor, it features a rust-resistant Geomet coating to extend rotor life and maintain consistent stopping power.

• Compatible with Mazda CX-9 rear brake system
• Solid disc brake rotor design for durability
• Rust resistant Geomet coating for corrosion protection
• Nominal thickness of 11.00 mm with a discard thickness of 9.00 mm
• Outside diameter of 324.80 mm (12.80 inches)
• Overall height of 45.10 mm (1.80 inches)
• Mounting bolt hole circle diameter of 114.30 mm with 5 lug holes

Product Line Details: Power Stop - Rear Genuine Geomet Coated Rotor

This rotor is part of the Power Stop - Rear Genuine Geomet Coated Rotor line, which focuses on providing rotors with a factory-style Geomet coating. This coating offers enhanced rust resistance compared to standard rotors, helping to maintain rotor integrity and appearance over time. The line is designed to meet or exceed OEM specifications, ensuring proper fit and function for rear brake applications like the Mazda CX-9.

Technical Specifications and Features

The JBR1742EVC rotor is a solid type rotor with a nominal thickness of 11.00 mm and a discard thickness of 9.00 mm, indicating when replacement is necessary to maintain safe braking. Its outside diameter measures 324.80 mm (12.80 inches), and the overall height is 45.10 mm (1.80 inches). The rotor includes a mounting bolt hole circle diameter of 114.30 mm and accommodates 5 lug holes, matching the Mazda CX-9 rear brake assembly requirements. The Geomet coating provides a protective layer against rust and corrosion, which is especially beneficial in environments prone to moisture and road salt.

Applications and Problem Solving

• Replacement for worn or warped rear rotors on Mazda CX-9
• Addresses rotor corrosion and rust buildup issues
• Improves braking consistency by restoring proper rotor thickness
• Helps reduce brake noise caused by uneven rotor surfaces
• Suitable for maintaining OEM braking performance on rear axle

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets the nominal thickness of 11.00 mm and is above the discard thickness of 9.00 mm. Clean the rotor surface and hub mounting area to prevent uneven rotor seating. Use proper torque specifications for the 5 lug bolts on the 114.30 mm bolt circle diameter. It is recommended to inspect brake pads and hardware during rotor replacement to ensure optimal braking system performance.

Quality Assurance

Power Stop rotors are manufactured to meet OEM standards for fit, form, and function. The Geomet coating enhances corrosion resistance, contributing to longer rotor life. While specific warranty details are not provided, Power Stop products typically adhere to industry quality controls to ensure reliability and safety for Mazda CX-9 rear brake applications.