Centric 121.20031 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.20031

The Centric C-TEK Standard Disc Brake Rotor 121.20031 is engineered for reliable braking performance on select Jaguar models. Designed as a vented, floating rotor, it offers consistent heat dissipation and durability for vehicles such as the Jaguar F-Type, XF, XFR, XFR-S, XJ, XJR, XJR575, XKR, and XKR-S.

• Vented disc brake rotor with straight vane design for improved cooling
• Nominal thickness of 1.020 inches (25.9 mm) with discard thickness at 0.945 inches (24 mm)
• Overall height of 1.654 inches (42 mm) ensuring proper fitment
• Outside diameter measures 14.803 inches (376 mm) for precise compatibility
• Floating disc mounting with 5 stud/lug holes, each 0.555 inches (14.1 mm) in diameter
• Center hole diameter of 2.539 inches (64.5 mm) and mounting bolt hole circle diameter of 4.252 inches (108 mm)
• Solid smooth surface type without ABS tone ring included
• Weight approximately 26.7 lbs (12.1 kgs) for balanced performance

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to meet or exceed OEM specifications for standard replacement rotors. This product line focuses on delivering consistent braking performance with quality materials and precise manufacturing tolerances. The 121.20031 rotor exemplifies this approach by providing a vented design that enhances heat dissipation and maintains structural integrity under normal driving conditions, making it suitable for various Jaguar models.

Detailed Product Description

This Centric disc brake rotor features a vented construction with straight vanes that facilitate efficient airflow to reduce heat buildup during braking. The floating disc mounting design allows for slight movement to accommodate thermal expansion and improve rotor longevity. With a nominal thickness of 1.020 inches and a discard thickness of 0.945 inches, this rotor ensures safe replacement intervals. The smooth surface type supports consistent pad contact and braking feel. The rotor’s dimensions, including a 14.803-inch outside diameter and 5 lug holes, are tailored for direct compatibility with Jaguar F-Type, XF, XFR, XFR-S, XJ, XJR, XJR575, XKR, and XKR-S models.

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 noise or vibration issues linked to uneven rotor surfaces
• Upgrading to a vented rotor for improved heat dissipation in daily driving
• Ensuring proper fitment and performance on Jaguar F-Type and XF series vehicles

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean rotor surface to remove any protective coatings or debris prior to mounting
• Use proper torque specifications on lug nuts to avoid rotor warping
• Inspect brake pads and hardware for wear and replace as necessary during rotor installation
• Ensure compatibility with vehicle ABS system; this rotor does not include an ABS tone ring

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details for part number 121.20031 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 Jaguar vehicles listed in the fitment.