Centric 121.65113 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Ford Super Duty Trucks

The Centric C-TEK Standard Disc Brake Rotor 121.65113 is engineered for dependable braking performance on Ford F-250 Super Duty and F-350 Super Duty models. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking under demanding conditions.

• Compatible with Ford F-250 Super Duty and F-350 Super Duty
• Part number 121.65113 for precise fitment
• Vented rotor design with straight vane style for enhanced cooling
• Nominal thickness of 1.339 inches (34.000 mm) with discard thickness at 1.276 inches (32.400 mm)
• Outside diameter measures 13.386 inches (340.000 mm)
• Overall height of 4.976 inches (126.400 mm)
• Eight stud/lug holes with 0.633 inch (16.070 mm) diameter
• Center hole diameter of 4.996 inches (126.900 mm)
• Solid smooth surface type without ABS tone ring

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM standards for durability and performance. This product line focuses on providing reliable, direct replacement rotors with precise dimensions and quality materials. The 121.65113 rotor is part of this line, delivering consistent braking performance for heavy-duty Ford trucks.

Product Details and Specifications

This disc brake rotor features a vented design with straight vanes that promote effective heat dissipation, reducing the risk of brake fade during heavy use. The nominal thickness of 1.339 inches (34.000 mm) and discard thickness of 1.276 inches (32.400 mm) ensure a long service life while maintaining safety standards. The rotor’s outside diameter of 13.386 inches (340.000 mm) and overall height of 4.976 inches (126.400 mm) are engineered for exact fitment on Ford F-250 and F-350 Super Duty models. The rotor includes eight lug holes with a diameter of 0.633 inches (16.070 mm) and a center hole diameter of 4.996 inches (126.900 mm), designed for secure mounting. This rotor does not include an ABS tone ring or bearings.

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 excessive brake noise from uneven rotor surfaces
• Improving heat dissipation to prevent brake fade during towing or heavy loads
• Ensuring proper rotor fitment for Ford F-250 and F-350 Super Duty vehicles

Installation Notes and Tips

Before installation, verify rotor dimensions against vehicle specifications to ensure compatibility. Clean the rotor surface to remove any protective coatings or debris. Use proper torque specifications on lug nuts to avoid rotor warping. Since this rotor does not include bearings or an ABS tone ring, ensure these components are inspected and replaced separately if necessary. It is recommended to replace rotors in pairs to maintain balanced braking performance.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring durability and consistent performance. While specific warranty details for part number 121.65113 should be confirmed with the supplier, Centric typically offers coverage against defects in materials and workmanship. This rotor is designed to provide reliable braking for Ford F-250 Super Duty and F-350 Super Duty trucks under normal operating conditions.