Centric 121.63090 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.63090

The Centric C-TEK Standard Disc Brake Rotor 121.63090 is engineered for reliable braking performance on Ram ProMaster City vehicles. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Ram ProMaster City models
• Vented disc brake rotor design for improved cooling
• Overall diameter of 12.008 inches (305 mm)
• Nominal thickness of 1.102 inches (28 mm) with discard thickness at 1.004 inches (25.5 mm)
• Floating disc mounting with pillar vane style and 93 OEM vane count
• 5 lug holes with 0.520 inch (13.2 mm) diameter each
• Weight approximately 19.05 lbs (8.64 kgs)
• Does not include ABS tone ring or bearings

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric focuses on providing OEM-quality replacement rotors that meet or exceed factory specifications. This product line emphasizes precise fitment and consistent braking performance, making it suitable for vehicles like the Ram ProMaster City that require dependable stopping power under normal driving conditions.

Technical Specifications and Features

This disc brake rotor features a vented design with pillar-style vanes, totaling 93 OEM vane counts, which enhances airflow to reduce heat buildup during braking. The rotor's smooth surface ensures even pad contact and wear. With an overall height of 1.803 inches (45.8 mm) and a center hole diameter of 2.327 inches (59.1 mm), it is designed for a floating disc mounting system. The mounting bolt hole circle diameter measures 3.858 inches (98 mm) with five lug holes, each 0.520 inches (13.2 mm) in diameter, ensuring secure installation on the Ram ProMaster City.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ram ProMaster City
• Addresses brake pulsation caused by uneven rotor thickness
• Improves heat dissipation to reduce brake fade during extended use
• Restores proper rotor thickness for safe braking performance
• Eliminates noise and vibration related to damaged rotors

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the rotor thickness is within the nominal range and above discard thickness limits. Use proper torque specifications for the 5 lug bolts to avoid warping. This rotor does not include bearings or an ABS tone ring, so reuse existing components if applicable. It is recommended to replace brake pads simultaneously for optimal braking efficiency.

Quality Assurance and Warranty

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