Raybestos 980488R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 980488R

The Raybestos R-Line Disc Brake Rotor 980488R is engineered for reliable braking performance on select Lexus models. Designed as a vented, drum-in-hat type rotor, it offers precise fitment and durability for vehicles like the Lexus GS300, GS350, GS430, GS450h, GS460, IS250, and IS350.

• Vented disc brake rotor with drum-in-hat design
• Overall height: 2.642 inches (67.1 mm)
• Outside diameter: 12.205 inches (310 mm)
• Mounting bolt hole quantity: 5 with 0.573 inch (14.55 mm) diameter
• Center hole diameter: 2.441 inches (62 mm)
• Mounting bolt hole circle diameter: 4.5 inches (114.3 mm)
• Nominal thickness: 0.709 inches (18 mm)
• Discard thickness: 0.650 inches (16.5 mm)

Detailed Product Description

This Raybestos R-Line rotor (part number 980488R) is a vented disc brake rotor featuring a drum-in-hat design, which integrates the parking brake drum into the rotor assembly. The vented construction improves heat dissipation during braking, helping to maintain consistent performance and reduce brake fade. With an outside diameter of 12.205 inches and an overall height of 2.642 inches, this rotor is engineered to meet the exact specifications required for Lexus GS and IS series vehicles. The rotor includes five mounting bolt holes with a 4.5-inch bolt circle diameter, ensuring secure and precise installation.

R-Line Product Line Information

The Raybestos R-Line product line focuses on delivering reliable, OE-quality brake components designed to meet or exceed factory specifications. The R-Line rotors are engineered for durability and consistent braking performance, making them suitable for drivers who require dependable replacement parts for their Lexus GS and IS models. This line balances quality and value without compromising on fit or function.

Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Restores braking efficiency on Lexus GS300, GS350, GS430, GS450h, GS460, IS250, and IS350
• Addresses rotor thickness below discard limits (0.650 inches)
• Improves heat dissipation to reduce brake fade during heavy use
• Supports proper parking brake function with integrated drum-in-hat design

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match vehicle specifications before installation
• Ensure mounting surfaces are clean and free of debris for proper rotor seating
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Check rotor thickness and discard limits to confirm suitability for reuse or replacement

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship. Using this rotor helps maintain the safety and reliability of your Lexus braking system.