Centric 121.39052 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.39052

The Centric C-TEK Standard Disc Brake Rotor 121.39052 is engineered for reliable braking performance on Volvo XC60 and XC90 models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Volvo XC60 and XC90 vehicles
• Vented disc brake rotor design for improved cooling
• Nominal thickness of 1.181 inches (30.000 mm)
• Discard thickness at 1.083 inches (27.500 mm)
• Overall height of 1.898 inches (48.200 mm)
• Outside diameter measuring 14.409 inches (366.000 mm)
• Floating disc mounting for enhanced rotor alignment
• 5 stud/lug holes with 0.614 inch (15.600 mm) diameter
• OEM vane count of 160 with pillar-style vanes
• Weight approximately 29.1 lbs (13.2 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric focuses on providing dependable, direct replacement rotors that meet or exceed OEM specifications. This product line emphasizes consistent rotor thickness and precise fitment, ensuring proper braking performance and vehicle safety. The 121.39052 rotor maintains these standards with its vented design and smooth surface, suitable for Volvo XC60 and XC90 models requiring reliable stopping power.

Technical Details and Specifications

This Centric rotor features a vented design with pillar-style vanes, which promotes efficient heat dissipation during braking to reduce the risk of brake fade. The rotor’s nominal thickness is 1.181 inches (30.000 mm), with a discard thickness of 1.083 inches (27.500 mm), indicating when replacement is necessary. The overall height is 1.898 inches (48.200 mm), and the outside diameter is 14.409 inches (366.000 mm), matching OEM dimensions for proper fitment. The floating disc mounting system helps maintain rotor alignment and reduces stress on the braking components. It includes five stud/lug holes with a diameter of 0.614 inches (15.600 mm) and a mounting bolt hole circle diameter of 4.252 inches (108.000 mm). This rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Volvo XC60 and XC90
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking consistency by restoring proper rotor thickness
• Reduces overheating issues with vented design and pillar vanes
• Restores proper rotor alignment with floating disc mounting

Installation Notes and Tips

• Ensure rotor thickness is measured before installation to confirm discard limits
• Clean rotor surface and hub mounting area to prevent uneven wear
• Torque lug nuts to manufacturer specifications for secure fitment
• Check compatibility with vehicle ABS system as this rotor does not include an ABS tone ring
• Inspect brake pads and replace if worn to maintain optimal braking performance

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, ensuring consistent quality and performance. While specific warranty details for part number 121.39052 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult the product documentation or Centric directly for exact warranty terms.