PowerStop JBR1794EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number JBR1794EVC) is engineered for Subaru WRX and WRX STI models. Designed to provide reliable braking performance, this vented disc brake rotor features a rust-resistant Geomet coating to extend rotor life and maintain consistent stopping power.

• Compatible with Subaru WRX and WRX STI rear brake systems
• Vented rotor design for improved heat dissipation
• Rust resistant Geomet coating for corrosion protection
• Nominal thickness of 0.79 inches (20.00 mm) with discard thickness at 0.71 inches (18.00 mm)
• Overall height of 2.50 inches (63.60 mm) and outside diameter of 12.80 inches (326.10 mm)
• Mounting bolt hole circle diameter of 4.50 inches (114.30 mm) with 5 lug holes

Detailed Product Description

This Power Stop rotor is part of the Rear Genuine Geomet Coated Rotor line, which focuses on providing rotors with a durable Geomet coating to resist rust and corrosion. The vented design enhances airflow, helping to reduce heat buildup during braking, which is critical for maintaining brake performance and rotor longevity. The rotor’s precise dimensions, including a nominal thickness of 0.79 inches and a discard thickness of 0.71 inches, ensure it meets OEM specifications for Subaru WRX and WRX STI rear brake systems. The 5-lug hole pattern and 4.50-inch bolt circle diameter provide a secure fitment for these vehicles.

Common Applications and Problem Solving

• Replacement for worn or warped rear rotors on Subaru WRX and WRX STI
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Helps prevent rust-related rotor degradation in humid or salty environments
• Improves heat dissipation to reduce brake fade during aggressive driving
• Restores proper rotor thickness for consistent braking performance

Installation Notes and Tips

• Ensure rotor thickness is measured before installation to confirm discard limits
• Clean rotor surface and hub mounting area to prevent uneven rotor seating
• Use proper torque specifications for lug nuts to avoid rotor warping
• Inspect brake pads and replace if worn to maintain optimal braking
• Follow vehicle manufacturer guidelines for brake system maintenance

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The Geomet coating provides enhanced corrosion resistance, contributing to longer rotor life. While specific warranty details for part number JBR1794EVC are not provided, Power Stop products typically come with a limited warranty against defects in materials and workmanship. Refer to Power Stop’s official documentation for complete warranty information.