Stoptech 127.61111R Disc Brake Rotor - Rear Right

StopTech Sport Rotor for Mustang Rear Right

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor is a direct replacement for factory brake systems and stock calipers. This rear right rotor for the Ford Mustang combines cross-drilling and slotting to help manage heat, clear brake dust, and improve pad bite in wet and dry conditions.

Built for the 2015-2022 Ford Mustang rear right position, part number 127.61111R delivers a performance-focused upgrade while maintaining OE-style fitment. The coated hat and black e-coating help protect against corrosion, while the high-carbon metallurgy used in most applications supports quieter operation and improved crack resistance.

Key Features

• Direct replacement disc brake rotor for factory brake systems and stock calipers
• Slotted X drilled surface helps disperse heat and brake dust
• Improves pad bite and helps reduce pad glazing
• Black e-coating and coated hat help resist corrosion
• High-carbon metallurgy in most applications for quieter braking and added durability
• Fits rear right applications on select Ford Mustang models

Product Details

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are engineered for drivers who want a more responsive brake feel without changing the factory brake layout. This rotor uses a 12.598-inch outside diameter, 5-lug mounting pattern, and floating disc mounting to match the specified Mustang rear right application. The slotted and cross-drilled face supports more consistent braking by helping move heat and debris away from the pad surface.

Fits 2022 Ford Mustang, rear right. Fits 2021 Ford Mustang, rear right. Fits 2015-2020 Ford Mustang, rear right, solid rear disc, except Performance Package. Fits 2015-2017 Ford Mustang, rear right, solid rear disc, base brakes, except Performance Package. Part number 127.61111R is also a useful reference when searching for a rear right Mustang brake rotor upgrade.

Common Uses

• Replacing a worn rear right brake rotor on a Ford Mustang
• Addressing brake pulsation caused by rotor wear or uneven surface condition
• Improving wet and dry braking response on street-driven vehicles
• Reducing brake dust buildup and pad glazing concerns
• Restoring braking consistency on solid rear disc Mustang applications

Installation Notes

Verify rotor diameter, center hole, bolt pattern, and rear right position before installation. This rotor is for compatible factory brake systems and stock calipers, and fitment notes exclude Performance Package applications on the listed 2015-2020 and 2015-2017 Mustang models. Inspect pads, caliper condition, and hub surfaces during service for proper rotor seating.

Quality Assurance

StopTech Sport rotors use corrosion-resistant coating and high-carbon metallurgy in most applications to support long-term service life, quieter operation, and improved crack resistance. Part number 127.61111R is built as a 1-piece direct replacement rotor for the specified Ford Mustang rear right fitments.