Centric 121.39025 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.39025

The Centric C-TEK Standard Disc Brake Rotor 121.39025 is engineered for reliable braking performance on select Volvo models. Designed as a solid rotor with a smooth surface, it provides consistent stopping power for vehicles like the Volvo S60, S80, V70, and XC70.

• Compatible with Volvo S60, S80, V70, and XC70 models
• Part number: 121.39025
• Solid disc brake rotor with smooth surface finish
• Outside diameter: 288 mm (11.339 inches)
• Nominal thickness: 12.0 mm (0.472 inches)
• Discard thickness: 10.0 mm (0.394 inches)
• Overall height: 64.8 mm (2.551 inches)
• 5 stud/lug holes with 16.5 mm diameter
• Center hole diameter: 68 mm (2.677 inches)
• Mounting bolt hole circle diameter: 108 mm (4.252 inches)
• Weight approximately 12.26 lbs (5.57 kgs)
• Does not include ABS tone ring or bearings

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers a range of rotors designed to meet OEM specifications for standard braking applications. This product line focuses on providing solid rotors with smooth surfaces that ensure consistent brake pad contact and reliable performance. The 121.39025 rotor fits within this line, delivering dependable braking for Volvo vehicles requiring a direct replacement part.

Detailed Product Description

This Centric disc brake rotor is a solid type rotor, meaning it does not have venting channels, which suits vehicles with standard braking demands. The smooth surface finish helps reduce brake pad wear and noise. With an outside diameter of 288 mm and a nominal thickness of 12 mm, this rotor meets the precise dimensions required for proper fitment on Volvo S60, S80, V70, and XC70 models. The rotor’s mounting specifications include a 5-lug hole pattern with a 108 mm bolt circle diameter and a center hole diameter of 68 mm, ensuring secure installation. The discard thickness of 10 mm indicates when the rotor should be replaced to maintain safe braking performance.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake vibration
• Restores braking efficiency on Volvo S60, S80, V70, and XC70
• Eliminates brake noise due to uneven rotor surfaces
• Addresses rotor thickness below manufacturer safety limits
• Suitable for vehicles without ABS tone ring requirements

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (10.0 mm) before installation
• Clean rotor surface to remove any protective coatings before mounting
• Verify bolt hole pattern and center hole diameter for proper fit
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check brake pads for wear and replace if necessary during rotor 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. While specific warranty details for part number 121.39025 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult product documentation or the manufacturer for exact warranty terms.