Raybestos 981787R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 981787R

The Raybestos R-Line Disc Brake Rotor 981787R is engineered for Subaru Forester models requiring reliable braking performance. This vented rotor is designed to meet precise specifications, ensuring consistent stopping power and durability under various driving conditions.

• Compatible with Subaru Forester vehicles
• Part number 981787R for exact fitment
• Vented disc brake rotor design for improved heat dissipation
• Overall height: 2.496 inches (63.4 mm)
• Outside diameter: 10.937 inches (277.8 mm)
• Inside diameter: 7.913 inches (201 mm)
• Mounting bolt hole quantity: 5 with 0.512 inch (13 mm) diameter
• Center hole diameter: 2.283 inches (58 mm)
• Nominal thickness: 0.709 inches (18 mm), discard thickness: 0.630 inches (16 mm)
• Conventional rotor type with 5 stud/lug holes

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on delivering dependable brake components that meet or exceed OEM specifications. This product line emphasizes precision manufacturing and material quality, providing rotors like the 981787R that maintain consistent thickness and structural integrity. The vented design in this line helps reduce heat buildup, which is critical for maintaining braking efficiency and rotor longevity in Subaru Forester applications.

Technical Description and Specifications

The 981787R disc brake rotor features a vented design that enhances airflow to dissipate heat generated during braking. Its nominal thickness of 0.709 inches (18 mm) ensures a robust braking surface, while the discard thickness of 0.630 inches (16 mm) indicates the minimum safe thickness before replacement is necessary. The rotor’s outside diameter measures 10.937 inches (277.8 mm), and the inside diameter is 7.913 inches (201 mm), matching Subaru Forester specifications for proper fit and function. The mounting bolt hole circle diameter is 3.937 inches (100 mm) with five bolt holes, each 0.512 inches (13 mm) in diameter, ensuring secure installation. The overall height of 2.496 inches (63.4 mm) aligns with OEM dimensions for compatibility.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Improving heat dissipation to reduce brake fade during extended use
• Restoring proper rotor dimensions for consistent brake pad contact
• Ensuring secure mounting with correct bolt hole pattern and size

Installation Notes and Tips

• Verify compatibility with Subaru Forester model year before installation
• Inspect hub surface for cleanliness and flatness prior to rotor mounting
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Replace brake pads simultaneously to ensure even wear and optimal braking
• Check rotor thickness with a micrometer to confirm discard limits before installation

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring dimensional accuracy and material consistency. The 981787R rotor undergoes rigorous testing to comply with OEM requirements for Subaru Forester vehicles. While specific warranty details should be confirmed with the point of purchase, Raybestos typically offers coverage against defects in material and workmanship, supporting long-term reliability and safety.