Raybestos 980378R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 980378R

The Raybestos R-Line Disc Brake Rotor 980378R is engineered for Subaru vehicles including the B9 Tribeca, Tribeca, and WRX models. Designed as a vented, drum-in-hat type rotor, it offers reliable braking performance tailored to these specific vehicles.

• Compatible with Subaru B9 Tribeca, Tribeca, and WRX
• Part number 980378R for precise identification
• Vented disc brake rotor with drum-in-hat design
• Overall height: 2.654 inches (67.400 mm)
• Outside diameter: 12.589 inches (319.750 mm)
• Nominal thickness: 0.704 inches (17.900 mm)
• Discard thickness: 0.630 inches (16.000 mm)
• Mounting bolt hole quantity: 5 with 4.500 inch (114.300 mm) bolt circle diameter

Detailed Specifications and Features

This Raybestos R-Line rotor (part number 980378R) is a vented disc brake rotor featuring a drum-in-hat design, which integrates the parking brake drum within the rotor itself. The rotor measures 12.589 inches (319.750 mm) in outside diameter and has an overall height of 2.654 inches (67.400 mm). Its nominal thickness is 0.704 inches (17.900 mm), with a discard thickness of 0.630 inches (16.000 mm), ensuring clear service limits for safe operation. The rotor includes five mounting bolt holes arranged on a 4.500 inch (114.300 mm) bolt circle diameter, matching the factory specifications for Subaru B9 Tribeca, Tribeca, and WRX models.

About the Raybestos R-Line Product Line

The R-Line by Raybestos is a product line focused on delivering reliable, OE-quality brake components designed to meet the specific requirements of various vehicle applications. This line emphasizes precise fitment and consistent performance, making it suitable for Subaru owners seeking replacement rotors that align with factory standards. The 980378R rotor exemplifies the R-Line’s commitment to quality and compatibility.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Subaru B9 Tribeca, Tribeca, and WRX
• Addresses brake pulsation and vibration issues caused by uneven rotor surfaces
• Restores proper braking performance and pedal feel
• Solves noise and squeal problems related to rotor wear
• Ensures safe parking brake operation with integrated drum-in-hat design

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 0.630 inches (16.000 mm)
• Ensure mounting surfaces and bolt holes are clean and free of debris
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Check compatibility with vehicle’s parking brake system due to drum-in-hat design
• Inspect brake pads and hardware during rotor replacement for optimal performance

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM standards, providing consistent braking performance and durability. While specific warranty details for part number 980378R should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to maintain safety and reliability for Subaru B9 Tribeca, Tribeca, and WRX vehicles.