Raybestos 980644 Disc Brake Rotor - Rear

Overview of Raybestos 980644 Disc Brake Rotor

The Raybestos Specialty - Street Performance disc brake rotor 980644 is engineered for reliable braking performance on select Jaguar models. Designed to meet precise specifications, this rotor supports consistent stopping power and durability for vehicles like the Jaguar S-Type and XJ series.

• Compatible with Jaguar S-Type, Super V8, Vanden Plas, XF, XJ, XJ8, XJR, XK, and XKR models
• Part number 980644 ensures exact fitment and quality
• Vented rotor design for improved heat dissipation
• 5 mounting bolt holes with a 108 mm bolt circle diameter
• Nominal thickness of 0.787 inches (20.000 mm) with discard thickness at 0.709 inches (18.000 mm)
• Overall height of 1.496 inches (38.000 mm) and outside diameter of 12.827 inches (325.800 mm)
• Smooth surface type for consistent pad contact
• Conventional rotor type suitable for drum-in-hat configurations

Specialty - Street Performance Product Line

The Raybestos Specialty - Street Performance line focuses on delivering rotors that balance street driving demands with enhanced performance characteristics. This product line is tailored for drivers seeking dependable braking components that maintain OEM fitment and function while offering improved heat management through vented rotor designs. The 980644 rotor exemplifies this approach by combining precise dimensions and vented construction to support Jaguar vehicles in everyday and spirited driving conditions.

Technical Details and Specifications

This disc brake rotor features a vented design to facilitate heat dissipation during braking, reducing the risk of brake fade. The rotor's nominal thickness is 0.787 inches (20.000 mm), with a discard thickness of 0.709 inches (18.000 mm), indicating when replacement is necessary to maintain safe braking performance. The rotor measures 12.827 inches (325.800 mm) in outside diameter and 1.496 inches (38.000 mm) in overall height, ensuring compatibility with the specified Jaguar models. It includes five mounting bolt holes arranged on a 108 mm bolt circle diameter, with a center hole diameter of 2.538 inches (64.450 mm), designed for a conventional drum-in-hat rotor setup. The smooth surface type promotes even brake pad wear and consistent braking feel.

Applications and Problem Solving

• Replacement for worn or warped rotors on Jaguar S-Type and XJ series
• Addresses brake fade caused by overheating during street performance driving
• Restores proper rotor thickness to maintain braking efficiency and safety
• Eliminates vibration and noise associated with uneven rotor surfaces
• Supports reliable braking under varied driving conditions for Jaguar XF and XK models

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets discard specifications
• Clean rotor surface to remove any protective coatings or debris prior to mounting
• Use proper torque specifications on the 5 mounting bolts to avoid rotor warping
• Inspect brake pads and hardware for wear during rotor replacement
• Ensure compatibility with drum-in-hat brake systems on applicable Jaguar models

Quality Assurance and Warranty

Raybestos rotors, including part number 980644, are manufactured to meet or exceed OEM standards for fit, form, and function. The Specialty - Street Performance line undergoes rigorous quality control to ensure durability and consistent braking performance. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship, providing confidence in the product's reliability for Jaguar vehicle owners.