Centric 121.66026 Disc Brake Rotor - Front

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

The Centric C-TEK Standard Disc Brake Rotor 121.66026 is engineered to meet the braking demands of heavy-duty trucks like the Chevrolet K3500, Dodge Ram 2500, Ram 3500, and Ram 3500 Van. Designed with precision, this vented rotor ensures consistent performance and durability under rigorous conditions.

• Vented disc brake rotor with smooth surface for effective heat dissipation
• Overall diameter of 12.492 inches (317.3 mm) for optimal fitment
• Nominal thickness of 1.539 inches (39.1 mm) with discard thickness at 1.465 inches (37.21 mm)
• Eight mounting bolt holes with a bolt circle diameter of 6.5 inches (165.1 mm)
• Center hole diameter of 5.409 inches (137.4 mm) for precise hub alignment
• Weight of approximately 24.5 lbs (11.14 kgs) suitable for heavy-duty applications
• Disc mounting behind the hub with straight vane style for efficient cooling

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to provide dependable braking components that meet or exceed OEM specifications. This product line focuses on delivering rotors with consistent thickness, balanced weight, and proper venting to maintain braking efficiency and rotor longevity. The 121.66026 rotor is part of this line, offering a solid balance of performance and durability for Chevrolet, Dodge, and GMC heavy-duty trucks.

Technical Details and Compatibility

This disc brake rotor features a vented design with straight vanes to enhance airflow and reduce heat buildup during braking. The smooth surface type ensures even pad contact and wear. With eight mounting bolt holes and a mounting bolt hole diameter of 0.646 inches (16.4 mm), it fits securely behind the hub. The rotor’s overall height is 2.756 inches (70 mm), making it compatible with the braking systems of Chevrolet K3500, Dodge Ram 2500, Ram 3500, and Ram 3500 Van models.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Resolving noise issues related to uneven rotor surfaces
• Improving heat dissipation to prevent brake fade in heavy-duty use
• Ensuring proper fitment for Chevrolet K3500 and Dodge Ram 2500/3500 series trucks

Installation Notes and Tips

• Verify rotor thickness before installation; discard thickness is 1.465 inches (37.21 mm)
• Ensure mounting surfaces and hub are clean and free of debris
• Use proper torque specifications on the eight mounting bolts for secure fitment
• Check for ABS tone ring compatibility; this rotor does not include an ABS tone ring
• Inspect brake pads for wear and replace if necessary during rotor installation

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring consistent thickness and balanced weight for reliable braking performance. While specific warranty details for part number 121.66026 are not provided here, Centric typically offers coverage against defects in materials and workmanship. Always consult product documentation or manufacturer resources for warranty terms.