Raybestos 680989R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 680989R

The Raybestos R-Line Disc Brake Rotor 680989R is engineered for reliable braking performance on Lincoln MKT vehicles. Designed as a vented, drum-in-hat rotor, it offers precise fitment and consistent stopping power tailored to this specific make and model.

• Compatible with Lincoln MKT models
• Part number 680989R for exact replacement
• Vented rotor design for improved heat dissipation
• Drum-in-hat type rotor with integrated parking brake drum
• 5 mounting bolt holes with 114.3 mm bolt circle diameter
• Smooth surface finish for consistent pad contact
• Nominal thickness of 22.0 mm and discard thickness of 20.0 mm
• Outside diameter of 342.0 mm and inside diameter of 255.5 mm
• Overall height of 55.7 mm

Detailed Specifications and Features

This Raybestos R-Line rotor features a vented design that enhances cooling during braking, reducing the risk of brake fade. The drum-in-hat configuration integrates a parking brake drum within the rotor, making it suitable for vehicles like the Lincoln MKT that require this dual functionality. The rotor has a smooth surface type, ensuring even pad wear and reliable braking response.

Key dimensions include an outside diameter of 342 mm and an inside diameter of 255.5 mm, with a nominal thickness of 22 mm and a discard thickness of 20 mm, indicating when the rotor should be replaced. The mounting bolt hole circle diameter is 114.3 mm with five bolt holes, matching the Lincoln MKT’s specifications. The overall height of 55.7 mm and center hole diameter of 68 mm ensure proper fitment and alignment.

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 for specific vehicle applications. This line emphasizes precise fitment and consistent performance, making it suitable for professional repairs and maintenance. The 680989R rotor exemplifies the R-Line’s commitment to matching factory specifications for the Lincoln MKT.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Lincoln MKT
• Addresses brake noise caused by uneven rotor surfaces
• Resolves reduced braking efficiency due to rotor overheating
• Fixes parking brake issues related to drum-in-hat rotor wear
• Eliminates vibration or pulsation during braking

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 20.0 mm before installation. Clean the rotor surface to remove any protective coatings or debris. Verify the mounting bolt hole pattern and center hole diameter match the vehicle hub. Properly torque all mounting bolts to manufacturer specifications. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM standards, providing dependable braking performance. While specific warranty details for part number 680989R should be confirmed with the supplier, Raybestos typically offers coverage against defects in materials and workmanship. This ensures confidence in the rotor’s durability and fitment for Lincoln MKT vehicles.