Centric 121.39057 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.39057

The Centric C-TEK Standard Disc Brake Rotor 121.39057 is engineered for reliable braking performance on select Volvo models. Designed as a solid, smooth-surface rotor, it provides consistent stopping power and durability for vehicles like the Volvo S60, S90, V60, V60 Cross Country, V90, V90 Cross Country, and XC60.

• Compatible with Volvo S60, S90, V60, V60 Cross Country, V90, V90 Cross Country, and XC60
• Part number 121.39057 for precise identification
• Solid disc brake rotor with smooth surface finish
• Outside diameter of 11.890 inches (302 mm)
• Nominal thickness of 0.472 inches (12.000 mm) and discard thickness of 0.374 inches (9.500 mm)
• Overall height of 1.701 inches (43.200 mm)
• Floating disc mounting design with 5 lug holes (0.618 inches diameter)
• Center hole diameter of 2.500 inches (63.500 mm) and mounting bolt hole circle diameter of 108.000 mm (4.252 inches)
• Weight approximately 11.7 lbs (5.32 kgs)
• ABS tone ring not included

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for fit, form, and function. This product line focuses on providing solid rotors with smooth surfaces that ensure consistent braking performance and long service life. The 121.39057 rotor is part of this line, delivering dependable stopping power for various Volvo models without ABS tone ring integration.

Technical Details and Specifications

This Centric rotor features a solid construction with a smooth surface type, optimized for standard braking applications. The rotor measures 11.890 inches in outside diameter and has a nominal thickness of 0.472 inches, with a discard thickness of 0.374 inches, indicating when replacement is necessary. The overall height is 1.701 inches, and it mounts using a floating disc design with a 5-lug hole pattern, each lug hole measuring 0.618 inches in diameter. The center hole diameter is 2.500 inches, and the mounting bolt hole circle diameter is 108.000 mm, ensuring precise fitment on compatible Volvo vehicles.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Volvo S60, S90, V60, V60 Cross Country, V90, V90 Cross Country, and XC60
• Addresses brake pulsation and vibration issues caused by uneven rotor surfaces
• Restores proper rotor thickness to maintain effective braking performance
• Eliminates noise and uneven pad wear associated with damaged rotors
• Ensures safe and consistent stopping power for daily driving conditions

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the rotor thickness to confirm it meets or exceeds the discard thickness specification of 0.374 inches. Use proper torque specifications for the 5 lug nuts to avoid rotor warping. This rotor does not include an ABS tone ring, so confirm compatibility with your vehicle's ABS system. Bearings are not included and should be inspected separately during installation.

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for quality and durability. While specific warranty details for part number 121.39057 are not provided here, Centric typically offers coverage against defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.