Raybestos 681939PER Disc Brake Rotor - Rear

Overview of Raybestos Disc Brake Rotor 681939PER

The Raybestos Specialty - Street Performance; S-Groove Technology disc brake rotor 681939PER is engineered for reliable braking performance on Ford Transit models. Designed specifically for Transit-150, Transit-250, Transit-350, and Transit-350 HD, this solid rotor meets precise fitment requirements to ensure proper installation and function.

• Overall height: 1.008 inches (25.600 mm)
• Outside diameter: 12.126 inches (308.000 mm)
• Mounting bolt hole quantity: 5
• Center hole diameter: 4.803 inches (122.000 mm)
• Mounting bolt hole circle diameter: 5.906 inches (150.000 mm)
• Stud/lug hole quantity: 5
• Rotor type: Solid, conventional (drum-in-hat type)

Detailed Product Description

This Raybestos disc brake rotor, part number 681939PER, is a solid rotor designed for use on Ford Transit vans including the Transit-150, Transit-250, Transit-350, and Transit-350 HD. The rotor features a 12.126-inch outside diameter and a 1.008-inch overall height, providing the correct dimensions for optimal brake system performance. With five mounting bolt holes and a 5.906-inch bolt hole circle diameter, it ensures secure attachment to the vehicle hub. The center hole diameter of 4.803 inches allows for proper hub fitment, maintaining alignment and balance during braking.

This rotor is part of the Raybestos Specialty - Street Performance; S-Groove Technology line, which focuses on delivering consistent braking performance for street-driven vehicles. The S-Groove Technology enhances rotor durability and heat dissipation, contributing to stable braking under typical driving conditions. This product line is tailored for drivers seeking dependable stopping power without the complexity of vented or drilled rotors.

Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD
• Addresses brake pulsation caused by uneven rotor surfaces
• Resolves noise issues related to rotor wear or damage
• Improves braking consistency for street performance driving
• Suitable for vehicles requiring solid, conventional rotors

Installation Notes and Tips

• Verify compatibility with Ford Transit model and year before installation
• Inspect hub surface for cleanliness and damage prior to mounting
• Torque mounting bolts to manufacturer specifications to avoid rotor distortion
• Replace brake pads simultaneously to ensure even wear and optimal braking
• Perform a test drive to confirm proper brake function after installation

Quality Assurance and Warranty

Raybestos disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The 681939PER rotor undergoes rigorous quality control to ensure durability and consistent performance. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.