Centric 121.39033 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.39033

The Centric C-TEK Standard Disc Brake Rotor 121.39033 is engineered for reliable braking performance on Volvo 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 XC90 vehicles
• Part number 121.39033 for precise identification
• Vented disc brake rotor design for improved cooling
• Overall diameter of 12.114 inches (307.7 mm)
• Nominal thickness of 0.787 inches (20.0 mm) with discard thickness at 0.709 inches (18.0 mm)
• Five stud/lug holes with a 4.252 inch (108 mm) bolt circle diameter
• Center hole diameter of 2.677 inches (68.0 mm)
• Weight approximately 16 lbs (7.27 kgs)

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor 121.39033 is a vented rotor featuring straight vanes that enhance airflow and heat dissipation during braking. The smooth surface finish ensures consistent pad contact and braking efficiency. With an overall height of 2.551 inches (64.8 mm), this rotor is designed to meet the exact specifications required for Volvo XC90 models. The rotor includes five mounting holes spaced on a 108 mm bolt circle diameter, accommodating the vehicle’s wheel hub assembly. The nominal thickness of 0.787 inches (20 mm) and discard thickness of 0.709 inches (18 mm) provide clear service limits for maintenance and replacement.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors engineered to meet or exceed OEM specifications for fit, form, and function. This product line focuses on providing reliable braking performance with standard vented rotor designs suitable for a wide range of vehicles, including the Volvo XC90. These rotors are manufactured with quality materials and precise machining to ensure consistent braking and durability under normal driving conditions.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Resolving uneven brake pad wear due to rotor surface imperfections
• Improving braking performance by restoring proper rotor dimensions
• Eliminating noise and vibration related to damaged rotors

Installation Notes and Tips

• Ensure rotor thickness is measured before installation to confirm discard limits
• Clean rotor surface and hub mounting area to prevent runout
• Torque lug nuts to manufacturer specifications for secure fitment
• Check compatibility with Volvo XC90 brake calipers and hardware
• Inspect brake pads and replace if worn to optimize braking system performance

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured under strict quality control standards to ensure durability and performance. While specific warranty details for part number 121.39033 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to meet OEM standards for the Volvo XC90, providing confidence in fit and function.