Raybestos 981957PER Disc Brake Rotor - Front

Overview of Raybestos Disc Brake Rotor 981957PER

The Raybestos Specialty - Street Performance; S-Groove Technology disc brake rotor 981957PER is engineered for Subaru Legacy models requiring reliable braking performance. This solid rotor is designed to meet specific thickness and dimension standards to ensure proper fit and function.

• Compatible with Subaru Legacy vehicles
• Part number: 981957PER
• Solid disc brake rotor design
• Outside diameter: 11.555 inches (293.5 mm)
• Nominal thickness: 1.102 inches (28.0 mm)
• Discard thickness: 1.024 inches (26.0 mm)
• Overall height: 2.232 inches (56.7 mm)
• Mounting bolt hole quantity: 4 with 0.512 inch (13.0 mm) diameter
• Center hole diameter: 2.283 inches (58.0 mm)
• Mounting bolt hole circle diameter: 4.5 inches (114.3 mm)
• Stud/lug hole quantity: 4

Detailed Product Description

This Raybestos disc brake rotor 981957PER is a conventional, solid rotor designed specifically for Subaru Legacy models. The rotor features precise dimensions including an outside diameter of 11.555 inches and a nominal thickness of 1.102 inches, ensuring compatibility with the vehicle's braking system. The discard thickness of 1.024 inches indicates the minimum thickness before replacement is necessary, helping maintain safe braking performance. The rotor's overall height of 2.232 inches and mounting specifications, such as the 4 mounting bolt holes and 4 stud/lug holes, align with Subaru Legacy's factory requirements.

The rotor is part of the Specialty - Street Performance; S-Groove Technology line by Raybestos, which focuses on street performance applications. This product line incorporates design features aimed at improving braking consistency and rotor longevity under typical street driving conditions.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Subaru Legacy
• Restores proper braking thickness and rotor dimensions
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking stability and pedal feel
• Suitable for routine maintenance and brake system overhauls

Installation Notes and Tips

• Verify rotor dimensions against vehicle specifications before installation
• Ensure mounting surfaces and bolt holes are clean and free of debris
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Inspect brake pads for wear and replace if necessary during rotor installation
• Perform a proper bed-in procedure after installation for optimal braking performance

Quality Assurance and Warranty

Raybestos disc brake rotors undergo rigorous quality control to meet OEM standards for fit and function. The Specialty - Street Performance; S-Groove Technology line is engineered for durability and consistent braking performance. Warranty details are provided by Raybestos and typically cover defects in materials and workmanship under normal use conditions. Refer to Raybestos documentation for specific warranty terms related to part number 981957PER.