Centric 121.40039 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.40039

The Centric C-TEK Standard Disc Brake Rotor 121.40039 is engineered for reliable braking performance on Acura and Honda vehicles, specifically compatible with the Accord and CL models. Designed to meet OEM specifications, this vented disc brake rotor ensures consistent stopping power and durability.

• Compatible with Acura Accord and Honda CL models
• Part number 121.40039 for precise identification
• Vented rotor design for improved heat dissipation
• Nominal thickness of 0.906 inches (23.000 mm) with discard thickness at 0.827 inches (21.000 mm)
• Overall height of 1.850 inches (47.000 mm) and outside diameter of 10.236 inches (260.000 mm)
• Floating disc mounting with straight vane style for efficient cooling
• Four stud/lug holes with a diameter of 0.492 inches (12.500 mm)
• Smooth surface type for consistent pad contact

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 standards for fit, form, and function. This product line focuses on providing reliable braking components with precise dimensions and quality materials. The 121.40039 rotor features a vented design to help reduce heat buildup during braking, contributing to longer rotor life and consistent performance on Acura Accord and Honda CL vehicles.

Detailed Product Description

This Centric disc brake rotor features a vented construction with straight vanes that promote effective airflow and heat dissipation, reducing the risk of brake fade during extended use. The rotor’s nominal thickness is 0.906 inches (23.000 mm), with a discard thickness of 0.827 inches (21.000 mm), ensuring clear service limits for maintenance. The overall height measures 1.850 inches (47.000 mm), and the outside diameter is 10.236 inches (260.000 mm), matching OEM specifications for a direct replacement. The rotor mounts using a floating disc mounting system and includes four stud/lug holes sized at 0.492 inches (12.500 mm) diameter, with a mounting bolt hole circle diameter of 114.300 mm (4.500 inches). The smooth surface type ensures consistent brake pad contact and wear.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Acura Accord and Honda CL
• Resolves brake pulsation caused by uneven rotor surfaces
• Addresses reduced braking efficiency due to rotor thickness below discard limits
• Improves heat management to prevent brake fade during heavy use
• Restores proper rotor dimensions for safe and reliable braking

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean rotor surface to remove any protective coatings or debris prior to mounting
• Use proper torque specifications on mounting bolts to avoid rotor warping
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Check compatibility with ABS systems; this rotor does not include an ABS tone ring

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details for part number 121.40039 should be confirmed with the supplier, Centric typically offers coverage against defects in materials and workmanship. This rotor is designed to provide reliable braking performance for Acura Accord and Honda CL vehicles when installed and maintained according to manufacturer guidelines.