Centric 121.65118 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Ford Explorer and Mercury Mountaineer

The Centric C-TEK Standard Disc Brake Rotor 121.65118 is engineered to provide consistent braking performance for Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer models. Designed with precision, this vented rotor ensures effective heat dissipation and durability under demanding driving conditions.

• Vented disc brake rotor with smooth surface for balanced braking
• Outside diameter of 12.016 inches (305.2 mm) for exact fitment
• Nominal thickness of 1.181 inches (30.0 mm) with discard thickness at 1.122 inches (28.5 mm)
• Overall height measures 2.138 inches (54.3 mm) for proper alignment
• Floating disc mounting with straight vane style for efficient cooling
• Five lug holes with 0.537 inch (13.65 mm) diameter and 4.5 inch (114.3 mm) bolt circle diameter
• Center hole diameter of 3.228 inches (82.0 mm) for secure installation
• Weight approximately 21.75 lbs (9.89 kgs) for balanced handling
• ABS tone ring not included; bearings not included

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers reliable replacement rotors designed to meet or exceed OEM specifications. This product line focuses on providing smooth surface rotors with vented designs to improve heat dissipation and reduce brake fade. The 121.65118 rotor is part of this line, delivering consistent performance and fitment for select Ford and Mercury vehicles.

Product Details and Specifications

This Centric disc brake rotor features a vented design with straight vanes that promote airflow and cooling during braking. The smooth surface finish ensures even pad contact and reduces noise. With a floating disc mounting type, the rotor allows slight movement to accommodate thermal expansion and improve braking efficiency. The rotor’s dimensions, including a 12.016 inch outside diameter and 1.181 inch nominal thickness, are engineered for direct compatibility with Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer models. The five lug holes and mounting bolt circle diameter provide secure attachment to the wheel hub assembly.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below discard limits to maintain safety
• Improving heat dissipation to reduce brake fade during heavy use
• Restoring smooth braking performance and reducing noise
• Ensuring proper fitment for Ford Explorer and Mercury Mountaineer brake systems

Installation Notes and Tips

Before installation, verify rotor dimensions against the vehicle’s specifications. Clean the rotor surface to remove any protective coating or debris. Ensure the hub mounting surface is free of rust and contaminants for proper rotor seating. Use proper torque specifications on lug nuts to avoid rotor warping. Since this rotor does not include bearings or an ABS tone ring, reuse existing components or replace separately as needed.

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. Each rotor undergoes quality inspections to ensure dimensional accuracy and material integrity. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms related to part number 121.65118.