Raybestos 96958R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 96958R

The Raybestos R-Line Disc Brake Rotor 96958R is engineered for reliable braking performance on select BMW models. Designed as a vented, drum-in-hat type rotor, it offers effective heat dissipation and durability for vehicles like the BMW 318i, 318is, 320i, 323is, 328i, and 328is.

• Vented disc brake rotor with drum-in-hat design
• Overall height: 2.365 inches (60.050 mm)
• Outside diameter: 11.020 inches (279.900 mm)
• Nominal thickness: 0.390 inches (9.900 mm)
• Discard thickness: 0.331 inches (8.400 mm)
• Mounting bolt hole quantity: 5 with 0.576 inch (14.650 mm) diameter
• Center hole diameter: 2.955 inches (75.050 mm)
• Mounting bolt hole circle diameter: 4.724 inches (120.000 mm)
• Stud/lug hole quantity: 5

Detailed Product Description

The Raybestos R-Line 96958R rotor is a vented disc brake rotor featuring a drum-in-hat design, which integrates a parking brake drum within the rotor assembly. This design is common in many BMW models, including the 318i, 318is, 320i, 323is, 328i, and 328is, providing both braking and parking brake functions in one component. The rotor measures 11.020 inches (279.900 mm) in outside diameter and has an overall height of 2.365 inches (60.050 mm), ensuring proper fitment and clearance within the brake system.

The nominal thickness of 0.390 inches (9.900 mm) allows for effective heat absorption and dissipation during braking, while the discard thickness of 0.331 inches (8.400 mm) indicates the minimum safe thickness before replacement is necessary. The rotor includes five mounting bolt holes with a 4.724-inch (120.000 mm) bolt circle diameter and 0.576-inch (14.650 mm) hole diameter, matching the factory specifications for the compatible BMW models.

R-Line Product Line Information

The R-Line by Raybestos is designed to meet or exceed OEM specifications for disc brake rotors, focusing on consistent performance and durability. This product line emphasizes precise fitment and reliable braking characteristics, making it suitable for drivers seeking a direct replacement rotor for their BMW 3 Series vehicles. The 96958R rotor maintains the vented and drum-in-hat design typical of the original equipment, ensuring compatibility and function.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Resolving noise or vibration issues related to rotor surface irregularities
• Upgrading to a rotor that supports integrated parking brake function
• Ensuring proper fitment for BMW 318i, 318is, 320i, 323is, 328i, and 328is models

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets nominal specifications
• Clean mounting surfaces to prevent uneven rotor seating
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Check parking brake adjustment after installation due to drum-in-hat design

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. The 96958R rotor undergoes rigorous testing to comply with OEM fitment and safety requirements. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship, providing confidence in the product's reliability.