PowerStop JBR1399SCR Disc Brake Rotor - Front

Overview

PowerStop JBR1399SCR is a front disc brake rotor built as a direct bolt-on replacement for the original equipment part. It uses a coated hat and edge design to help resist corrosion while maintaining OE-style fit and performance.

Compatible with Mazda CX-9 front brake applications, this rotor is engineered to match original equipment weight and vane count for proper fitment. The smooth, vented, full cast construction supports consistent braking performance and a clean appearance behind alloy wheels.

Key Features

• Part number JBR1399SCR for easy identification and ordering.
• Partially coated rotor with silver epoxy on corrosion-prone areas.
• Vented, full cast construction with a smooth surface finish.
• Mill balanced for consistent rotational quality.
• Matches OE specifications for weight and vane count.

Detailed Description

PowerStop’s coated hat and edge rotor line focuses on OE-style replacement with added corrosion protection in exposed areas. The hat, outer edge, and vanes receive a silver epoxy coating to help preserve the rotor’s appearance and reduce rust on visible surfaces. This makes the JBR1399SCR a practical choice for drivers who want a replacement rotor that looks cleaner behind modern wheels while maintaining original equipment dimensions.

Fits 2007-2015 Mazda CX-9, front. The 320 mm outside diameter, 28 mm nominal thickness, 26 mm discard thickness, 114.3 mm bolt circle, and five-lug pattern align with the listed application. The JBR1399SCR is a vented disc brake rotor with smooth friction surfaces and mill-balanced construction for OE-style service replacement.

What It Is Used For

• Replacing a worn front brake rotor with an OE-style part.
• Addressing rotor rust on exposed hat and edge surfaces.
• Restoring proper braking surface thickness and vented rotor function.
• Maintaining a cleaner appearance behind alloy wheels.
• Supporting brake service on Mazda CX-9 front applications.

Installation Notes and Tips

Verify rotor dimensions, bolt circle, and hub fitment before installation. Clean the hub mounting surface thoroughly to help prevent runout or uneven rotor seating. Follow the vehicle manufacturer’s brake service procedures and bed-in recommendations after installation.

Quality Assurance

PowerStop designs this rotor to match original equipment performance and specifications, including weight and vane count, for confirmed fitment on the listed application. This part cross-references Monroe Shocks & Struts (e.g., EH14-33-25XA, L232-33-25XA) for the same application.