Raybestos 56631FZN Disc Brake Rotor - Front

Reliable Vented Disc Brake Rotor for Buick, Oldsmobile, Pontiac

The Raybestos Element3; Coated Rotor 56631FZN is engineered to provide consistent braking performance for select Buick, Oldsmobile, and Pontiac models. Designed as a vented disc brake rotor, it offers effective heat dissipation and durability for vehicles like the Bonneville, Grand Prix, and LeSabre.

• Vented rotor design for improved heat management
• Coated surface to resist rust and corrosion
• Nominal thickness of 1.270 inches (32.250 mm) with discard thickness at 1.208 inches (30.700 mm)
• Overall height of 2.050 inches (52.050 mm)
• Outside diameter measuring 10.940 inches (277.900 mm)
• Five mounting bolt holes with a 118.000 mm bolt circle diameter
• Center hole diameter of 2.782 inches (70.650 mm)
• Conventional rotor type compatible with drum-in-hat setups

About the Raybestos Element3; Coated Rotor Line

The Element3; Coated Rotor line from Raybestos focuses on delivering rotors with a protective coating that helps prevent rust and corrosion, extending the rotor's service life. This coating is especially beneficial for vehicles exposed to moisture and road salt. The 56631FZN rotor maintains the precise dimensions and vented design required for optimal braking performance on compatible Buick, Oldsmobile, and Pontiac models.

Technical Details and Compatibility

This disc brake rotor features a vented design that enhances cooling during braking, reducing the risk of brake fade. The nominal thickness of 1.270 inches (32.250 mm) ensures structural integrity, while the discard thickness of 1.208 inches (30.700 mm) indicates when replacement is necessary. The rotor's overall height is 2.050 inches (52.050 mm), and it fits vehicles with a 5-lug mounting pattern and a 118.000 mm bolt circle diameter. The center hole diameter of 2.782 inches (70.650 mm) ensures proper hub fitment.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Buick LeSabre and Pontiac Grand Prix
• Addressing brake noise and vibration issues caused by uneven rotor surfaces
• Improving braking performance on Oldsmobile Intrigue and Buick Regal
• Restoring proper rotor thickness to maintain safe braking distances
• Preventing rust-related rotor damage in humid or salted road conditions

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surfaces to prevent rotor runout and vibration
• Use proper torque specifications for the 5 mounting bolts
• Inspect brake pads and replace if worn to ensure even rotor wear
• Follow vehicle-specific service manual for brake system procedures

Quality Assurance and Warranty

Raybestos rotors, including the Element3; Coated Rotor 56631FZN, are manufactured to meet or exceed OEM specifications. The protective coating helps extend rotor life by resisting corrosion. While specific warranty details vary, Raybestos typically offers coverage against defects in materials and workmanship. Always verify warranty terms with the supplier or manufacturer.