Centric 121.65104 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Ford Super Duty and Excursion

The Centric C-TEK Standard Disc Brake Rotor 121.65104 is engineered to meet the braking demands of Ford Excursion, F-250 Super Duty, and F-350 Super Duty models. Designed with precision, this vented rotor ensures consistent performance and durability under heavy-duty conditions.

• Vented disc brake rotor with pillar vane design for improved heat dissipation
• Includes ABS tone ring for compatibility with ABS systems
• Nominal thickness of 1.496 inches (38.000 mm) with discard thickness at 1.417 inches (36.000 mm)
• Outside diameter measures 13.031 inches (331.000 mm) for exact fitment
• Eight stud/lug holes with 14 mm stud thread diameter and 1.5 mm bolt thread pitch
• Center hole diameter of 4.921 inches (125.000 mm) and mounting bolt hole circle diameter of 6.693 inches (170.000 mm)
• Weight approximately 47 lbs (21.36 kgs) for balanced handling
• Surface type is smooth to ensure proper pad contact and braking efficiency

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers a reliable replacement option designed to meet or exceed OEM specifications. This product line focuses on providing rotors with precise dimensions and features such as vented construction and ABS tone rings to maintain factory braking system integrity. The 121.65104 rotor is part of this line, ensuring compatibility and performance for Ford Super Duty and Excursion vehicles.

Product Details and Specifications

This disc brake rotor features a vented design with pillar-style vanes that enhance airflow and heat dissipation, reducing the risk of brake fade during heavy use. The rotor’s nominal thickness is 1.496 inches, with a discard thickness of 1.417 inches, indicating when replacement is necessary. The smooth surface type promotes even brake pad wear and consistent stopping power. The rotor includes an ABS tone ring, making it compatible with vehicles equipped with ABS systems. With eight lug holes and precise mounting dimensions, this rotor fits securely on the hub and rotor assembly of Ford Excursion, F-250 Super Duty, and F-350 Super Duty models.

Common Issues Addressed by This Rotor

• Warped or uneven rotor surfaces causing brake pulsation
• Reduced braking efficiency due to worn or thin rotors
• ABS sensor errors from missing or damaged tone rings
• Overheating and brake fade during heavy towing or hauling
• Corrosion or physical damage compromising rotor integrity

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface and hub mounting area to prevent uneven contact
• Torque lug nuts to manufacturer specifications for secure fitment
• Check ABS tone ring alignment and sensor clearance during installation
• Inspect brake pads and replace if worn to maintain optimal braking

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 121.65104 should be confirmed with the supplier, Centric typically offers coverage against defects in materials and workmanship. This rotor is engineered to provide consistent braking performance for Ford Excursion, F-250 Super Duty, and F-350 Super Duty vehicles.