PowerStop JBR1398 Disc Brake Rotor - Rear

Rear OE Replacement Rotor for Mazda CX-9

Restore rear braking performance with the PowerStop JBR1398 disc brake rotor. This rear OE stock replacement rotor is built as a direct fit for the 2007-2015 Mazda CX-9, giving you the correct dimensions and OE-style performance for a straightforward brake service.

Power Stop’s Autospecialty rotor line focuses on direct-fit replacement parts for original equipment fit and performance. For drivers searching for a rear brake rotor for Mazda CX-9 models, the JBR1398 provides the size, bolt pattern, and vented construction needed for a proper rear axle application.

Key Features

• Direct-fit rear disc brake rotor for the 2007-2015 Mazda CX-9
• OE stock replacement design for original equipment fit and performance
• Vented rotor construction for rear brake applications
• 12.80 in. outside diameter and 2.20 in. overall height
• 5-lug mounting pattern with a 114.30 mm bolt circle diameter
• Nominal thickness: 0.71 in. / 18.00 mm
• Discard thickness: 0.63 in. / 16.00 mm
• PowerStop part number JBR1398

Detailed Description

The PowerStop JBR1398 is a rear brake rotor engineered for the Mazda CX-9 from 2007 through 2015. It uses a vented rotor design and OE-style dimensions to match the factory rear brake setup, making it a practical choice for routine brake maintenance, rotor replacement, or restoring consistent pedal feel. The Autospecialty product line is positioned as a direct-fit replacement solution, and this rotor follows that approach with the correct diameter, thickness, height, and 5-lug bolt circle specification.

For shoppers comparing rear brake rotor options for Mazda CX-9 2007-2015 models, the JBR1398 offers a straightforward stock-replacement format without unnecessary changes to the original brake system. This part number, JBR1398, is the rear rotor application for the listed vehicle fitment.

What This Rotor Helps Address

• Brake pulsation caused by worn or uneven rear rotors
• Reduced braking consistency from rotor wear beyond discard thickness
• Noise or vibration related to rear brake rotor condition
• Factory-spec replacement needs during rear brake service
• Restoration of OE-style rear braking performance on a Mazda CX-9

Installation Notes and Tips

Fits 2007-2015 Mazda CX-9, rear. Verify rotor diameter, thickness, and bolt circle before installation to confirm the rear axle application matches your vehicle. Inspect pads, calipers, and hub surfaces during service so the new rotor seats evenly and performs as expected. Because this rotor does not list a rust resistant coating, handle and store it carefully before installation to help minimize surface corrosion.

Quality Assurance

Power Stop positions this rotor within its Autospecialty OE replacement line, which is focused on direct-fit parts for original equipment fit and performance. The JBR1398 is built to match the factory-style rear brake application for the Mazda CX-9.