Centric 121.20018 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.20018

The Centric C-TEK Standard Disc Brake Rotor 121.20018 is engineered for reliable braking performance on select Jaguar models. Designed as a vented, smooth surface rotor, it provides consistent stopping power and heat dissipation for vehicles like the Jaguar S-Type, Super V8, Vanden Plas, and XJR.

• Compatible with Jaguar S-Type, Super V8, Vanden Plas, and XJR models
• Part number 121.20018 for precise identification
• Vented disc design with pillar-style vanes for improved cooling
• Nominal thickness of 1.260 inches (32.000 mm) and discard thickness of 1.181 inches (30.000 mm)
• Overall height of 2.815 inches (71.500 mm) and outside diameter of 14.370 inches (365.000 mm)
• Floating disc mounting with 5 stud/lug holes, each 0.551 inches (14.000 mm) in diameter
• Center hole diameter of 2.791 inches (70.900 mm) and mounting bolt hole circle diameter of 4.252 inches (108.000 mm)
• Weight approximately 25.5 lbs (11.59 kgs)
• 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 rotors designed to meet or exceed OEM specifications for standard braking applications. This product line focuses on delivering consistent performance with smooth surface rotors that are vented to enhance heat dissipation. The 121.20018 rotor fits within this line, providing a balance of durability and reliable braking for Jaguar vehicles requiring replacement rotors that maintain factory standards.

Technical Details and Specifications

This disc brake rotor features a vented design with pillar-style vanes that promote efficient airflow to reduce heat buildup during braking. The nominal thickness of 1.260 inches (32.000 mm) ensures structural integrity, while the discard thickness of 1.181 inches (30.000 mm) indicates the minimum safe thickness before replacement is necessary. The rotor’s overall height measures 2.815 inches (71.500 mm), and the outside diameter is 14.370 inches (365.000 mm), matching the original equipment dimensions for proper fitment.

The rotor mounts using a floating disc mounting system with five lug holes sized at 0.551 inches (14.000 mm) diameter, arranged on a 4.252 inch (108.000 mm) bolt circle diameter. The center hole diameter is 2.791 inches (70.900 mm), ensuring precise alignment on the hub. This rotor does not include an ABS tone ring or bearings, so those components must be sourced separately if required.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Jaguar S-Type, Super V8, Vanden Plas, and XJR
• Addresses brake pulsation caused by uneven rotor surfaces
• Restores proper braking performance and pedal feel
• Helps reduce brake fade by improving heat dissipation with vented design
• Corrects rotor thickness below manufacturer discard limits

Installation Notes and Tips

• Verify rotor part number 121.20018 matches vehicle specifications before installation
• Inspect hub and mounting surfaces for cleanliness and damage prior to mounting
• Ensure proper torque on lug nuts to manufacturer specifications to avoid rotor warping
• Replace brake pads simultaneously to ensure even wear and optimal braking
• Check rotor thickness with a micrometer to confirm it is above discard thickness before installation

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. Each rotor undergoes quality control inspections to ensure dimensional accuracy and material integrity. While specific warranty details for part number 121.20018 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship under normal use.