Centric 121.62042 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Chevrolet, Dodge, and GMC Trucks

The Centric C-TEK Standard Disc Brake Rotor 121.62042 is engineered for dependable braking performance on heavy-duty trucks like the Chevrolet K1500 Suburban, Dodge Ram 2500, and GMC K3500. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and durability under demanding conditions.

• Part Number: 121.62042
• Compatible with Chevrolet K1500 Suburban, K2500, K2500 Suburban, K3500, Dodge Ram 2500, and GMC Suburban 2500
• Vented disc brake rotor with straight vane design for improved cooling
• Outside diameter: 12.5 inches (317.5 mm)
• Nominal thickness: 1.295 inches (32.9 mm); discard thickness: 1.215 inches (30.86 mm)
• Overall height: 2.756 inches (70 mm)
• Mounting bolt hole quantity: 8 with 0.646 inch (16.4 mm) diameter holes
• Center hole diameter: 5.409 inches (137.4 mm)
• Surface type: smooth, solid mounting behind the hub
• Weight: approximately 20.5 lbs (9.32 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured 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, suitable for heavy-duty applications such as full-size Chevrolet, Dodge, and GMC trucks. The 121.62042 rotor is part of this line, delivering consistent performance and durability for demanding driving conditions.

Product Details and Specifications

This vented disc brake rotor features a straight vane design that enhances airflow to reduce heat buildup during braking. The rotor’s nominal thickness of 1.295 inches (32.9 mm) ensures a solid braking surface, while the discard thickness of 1.215 inches (30.86 mm) indicates the minimum safe thickness before replacement is necessary. The smooth surface type provides consistent pad contact and braking efficiency. With an outside diameter of 12.5 inches (317.5 mm) and an overall height of 2.756 inches (70 mm), this rotor mounts behind the hub using eight mounting bolt holes sized at 0.646 inches (16.4 mm) diameter on a 6.5 inch (165.1 mm) bolt circle diameter. The center hole diameter of 5.409 inches (137.4 mm) ensures proper fitment on compatible hubs.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Chevrolet K1500 Suburban and K2500 models
• Restores braking performance on Dodge Ram 2500 trucks experiencing brake fade
• Addresses vibration or pulsation issues caused by uneven rotor surfaces on GMC K3500
• Improves heat dissipation in heavy-duty braking scenarios for Suburban 2500 vehicles
• Ensures safe braking by maintaining proper rotor thickness and structural integrity

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 1.215 inches (30.86 mm)
• Ensure mounting surface and hub are clean and free of debris for proper rotor seating
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Check compatibility with ABS systems; this rotor does not include an ABS tone ring
• Inspect brake pads and hardware during rotor replacement for optimal braking system performance

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet strict quality standards, ensuring reliable fit and function for heavy-duty truck applications. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Using part number 121.62042 guarantees compatibility with Chevrolet, Dodge, and GMC trucks listed, supporting safe and effective braking performance.