Raybestos 980018R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 980018R

The Raybestos R-Line Disc Brake Rotor 980018R is engineered for BMW X5 models requiring reliable braking performance. This vented, drum-in-hat type rotor is designed to meet specific fitment and durability standards for optimal vehicle compatibility.

• Compatible with BMW X5 models
• Vented disc brake rotor with drum-in-hat design
• Outside diameter: 12.750 inches (323.85 mm)
• Nominal thickness: 0.472 inches (12.000 mm)
• Discard thickness: 0.409 inches (10.400 mm)
• Overall height: 3.154 inches (80.100 mm)
• Mounting bolt hole quantity: 5 with 0.654 inch (16.600 mm) diameter
• Center hole diameter: 2.953 inches (75.000 mm)
• Mounting bolt hole circle diameter: 4.724 inches (120.000 mm)
• Stud/lug hole quantity: 5

Detailed Product Description

The Raybestos R-Line 980018R disc brake rotor is a vented rotor featuring a drum-in-hat design, which integrates a parking brake drum within the rotor assembly. This design is common in BMW X5 vehicles, providing both braking and parking brake functions in one component. The rotor measures 12.750 inches in outside diameter and has a nominal thickness of 0.472 inches, ensuring sufficient material for heat dissipation and durability. The discard thickness is 0.409 inches, indicating the minimum thickness before replacement is necessary. The overall height of 3.154 inches accommodates the rotor’s vented structure, which improves cooling during braking. The rotor mounts with five bolt holes, each 0.654 inches in diameter, arranged on a 4.724-inch bolt circle diameter, matching the BMW X5 hub specifications. The center hole diameter of 2.953 inches ensures proper fitment on the vehicle’s hub assembly.

R-Line Product Line Information

The Raybestos R-Line product line focuses on delivering reliable, OE-quality brake components designed to meet or exceed original equipment specifications. The R-Line rotors, including the 980018R, are engineered for consistent performance and durability, making them suitable for vehicles like the BMW X5 that demand precise fitment and dependable braking under various driving conditions.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Upgrading from solid to vented rotors for improved heat dissipation
• Resolving brake noise or vibration related to rotor surface irregularities
• Addressing rotor thickness below manufacturer discard limits
• Ensuring proper fitment for BMW X5 parking brake drum-in-hat systems

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match BMW X5 specifications before installation
• Inspect hub surface for cleanliness and damage prior to mounting the rotor
• Torque mounting bolts to manufacturer-recommended specifications
• Check parking brake components integrated within the drum-in-hat rotor for wear
• Perform a proper bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet stringent quality standards, ensuring consistent performance and durability. While specific warranty details for part number 980018R should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to provide reliable service life when installed and maintained according to manufacturer guidelines.