Raybestos 980646 Disc Brake Rotor - Front

Overview of Raybestos Specialty - Street Performance Rotor

The Raybestos Specialty - Street Performance disc brake rotor, part number 980646, is engineered for Jaguar vehicles including the S-Type, Super V8, Vanden Plas, XF, XJ, XJR, XK, and XKR models. Designed to meet precise specifications, this vented rotor offers reliable braking performance for street-driven Jaguars.

• Compatible with Jaguar S-Type, Super V8, Vanden Plas, XF, XJ, XJR, XK, and XKR
• Part Number: 980646
• Vented disc brake rotor with smooth surface finish
• Nominal thickness: 1.260 inches (32.000 mm)
• Discard thickness: 1.181 inches (30.000 mm)
• Outside diameter: 13.945 inches (354.200 mm)
• Inside diameter: 8.661 inches (220.000 mm)
• Overall height: 1.890 inches (48.000 mm)
• Mounting bolt hole quantity: 5 with 0.546 inch (13.850 mm) diameter
• Center hole diameter: 2.795 inches (71.000 mm)
• Mounting bolt hole circle diameter: 4.252 inches (108.000 mm)
• Conventional rotor type

Raybestos Specialty - Street Performance Product Line

The Specialty - Street Performance line by Raybestos focuses on delivering rotors designed for street-driven vehicles that require dependable braking under everyday and spirited driving conditions. This product line balances durability and performance, making it suitable for Jaguar models that demand consistent stopping power without compromising rotor longevity.

Detailed Product Description

This Raybestos disc brake rotor 980646 is a vented, conventional rotor designed to optimize heat dissipation and reduce brake fade during operation. The smooth surface finish ensures consistent pad contact and braking efficiency. With a nominal thickness of 1.260 inches and a discard thickness of 1.181 inches, this rotor maintains structural integrity throughout its service life. The rotor’s outside diameter of 13.945 inches and inside diameter of 8.661 inches are engineered to fit precisely on Jaguar S-Type, Super V8, Vanden Plas, XF, XJ, XJR, XK, and XKR models. The 5-bolt mounting pattern with a 4.252-inch bolt circle diameter and 0.546-inch bolt hole diameter ensures secure installation and compatibility with factory hardware.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Jaguar S-Type and XF models
• Addressing brake fade caused by overheating during street performance driving
• Resolving uneven brake pad wear due to rotor surface irregularities
• Improving braking consistency on Jaguar XJ and XJR vehicles
• Upgrading from drum-in-hat or solid rotors to vented rotors for better heat management

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern compatibility with your Jaguar model before installation
• Ensure mounting surfaces are clean and free of debris to prevent rotor runout
• Torque mounting bolts to manufacturer specifications to avoid warping
• Inspect brake pads and calipers during rotor replacement for optimal braking performance
• Follow proper bedding-in procedures after installation to maximize rotor and pad life

Quality Assurance and Warranty

Raybestos rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The Specialty - Street Performance rotor line undergoes rigorous quality control to ensure durability and consistent braking performance. While specific warranty details for part number 980646 should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship.