Centric 121.42042 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.42042

The Centric C-TEK Standard Disc Brake Rotor 121.42042 is engineered for reliable braking performance on Nissan 240SX vehicles. Designed as a solid rotor with a smooth surface, this part ensures consistent stopping power and durability for everyday driving conditions.

• Compatible with Nissan 240SX models
• Part number 121.42042 for precise identification
• Solid disc brake rotor with smooth surface finish
• Outside diameter of 10.157 inches (258 mm)
• Nominal thickness of 0.354 inches (9.000 mm) and discard thickness of 0.315 inches (8.000 mm)
• Overall height of 1.831 inches (46.500 mm)
• Floating disc mounting design
• Four stud/lug holes with 0.502 inch (12.750 mm) diameter
• Center hole diameter of 2.677 inches (68.000 mm)
• Does not include ABS tone ring or bearings
• Weight approximately 8.5 lbs (3.86 kgs)

Details on C-TEK Standard Disc Brake Rotors Product 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 delivering rotors with precise dimensions and consistent quality, suitable for vehicles like the Nissan 240SX. The 121.42042 rotor maintains the original equipment fit and function, providing a direct replacement option without modifications.

Technical Specifications and Features

This disc brake rotor features a solid design with a smooth surface type, which is typical for standard braking systems. The rotor’s nominal thickness is 0.354 inches (9.000 mm), with a discard thickness of 0.315 inches (8.000 mm), indicating when the rotor should be replaced to maintain safe braking performance. The overall height measures 1.831 inches (46.500 mm), and the outside diameter is 10.157 inches (258 mm), ensuring compatibility with the Nissan 240SX brake assembly. The rotor mounts using a floating disc mounting system and includes four stud/lug holes with a diameter of 0.502 inches (12.750 mm) arranged on a 4.5 inch (114.300 mm) bolt circle diameter. 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 Nissan 240SX
• Restores proper braking performance and pedal feel
• Addresses rotor thickness below discard limits to prevent brake fade
• Eliminates vibration or pulsation caused by uneven rotor surfaces
• Suitable for standard driving conditions requiring OEM-spec rotors

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum specifications
• Clean rotor surface and hub mounting area to prevent uneven wear
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with existing brake pads and hardware
• ABS tone ring and bearings are not included and must be installed separately if applicable

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.42042 are not provided here, Centric typically offers coverage against defects in materials and workmanship. It is recommended to consult the product packaging or Centric’s official documentation for exact warranty terms.