Centric 121.39041 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.39041

The Centric C-TEK Standard Disc Brake Rotor 121.39041 is engineered for reliable braking performance on Volvo S80 models. Designed as a solid rotor with a smooth surface, it offers consistent stopping power and durability for everyday driving conditions.

• Compatible with Volvo S80 vehicles
• Part number: 121.39041
• Solid disc brake rotor with smooth surface finish
• Outside diameter: 11.890 inches (302 mm)
• Nominal thickness: 0.472 inches (12 mm)
• Discard thickness: 0.394 inches (10 mm)
• Overall height: 2.736 inches (69.5 mm)
• 5 lug holes with 0.614 inch (15.6 mm) diameter
• Center hole diameter: 2.504 inches (63.6 mm)
• Mounting bolt hole circle diameter: 4.252 inches (108 mm)
• Weight approximately 14.85 lbs (6.75 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 OEM-quality replacement rotors designed to meet factory specifications. This product line focuses on providing solid rotors with smooth surfaces that ensure consistent brake pad contact and reliable braking performance. The 121.39041 rotor fits within this line, delivering dependable stopping power for Volvo S80 owners seeking a direct replacement part.

Product Details and Specifications

This disc brake rotor features a solid design with a smooth surface type, which helps maintain even pad wear and consistent braking feel. The rotor measures 11.890 inches (302 mm) in outside diameter and has a nominal thickness of 0.472 inches (12 mm), with a discard thickness of 0.394 inches (10 mm) indicating when replacement is necessary. The overall height is 2.736 inches (69.5 mm), and it includes five lug holes sized at 0.614 inches (15.6 mm) diameter arranged on a 4.252 inch (108 mm) bolt circle diameter. The center hole diameter is 2.504 inches (63.6 mm). 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 Volvo S80
• Addresses brake pulsation or vibration issues
• Restores proper rotor thickness for safe braking
• Eliminates uneven brake pad wear caused by rotor surface imperfections
• Improves braking consistency after rotor damage or corrosion

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets or exceeds the nominal thickness of 0.472 inches (12 mm). Replace rotors when thickness reaches the discard limit of 0.394 inches (10 mm). Clean the rotor surface to remove any protective coatings or contaminants before mounting. Verify compatibility with the Volvo S80 model year and brake system specifications. Since this rotor does not include bearings or an ABS tone ring, confirm those components are in good condition or replaced as needed during installation.

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet or exceed OEM standards for fit, form, and function. The 121.39041 rotor undergoes rigorous quality control to ensure durability and consistent braking performance. Warranty coverage details should be confirmed with the product documentation or manufacturer, as they may vary by region or distributor.