Centric 121.58004 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.58004

The Centric C-TEK Standard Disc Brake Rotor 121.58004 is engineered for reliable braking performance on Jeep Grand Cherokee models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Jeep Grand Cherokee vehicles
• Vented disc brake rotor design for improved cooling
• Overall diameter of 13.78 inches (350 mm)
• Nominal thickness of 1.102 inches (28.0 mm) with discard thickness at 1.096 inches (27.85 mm)
• Five lug holes with a 5-inch (127 mm) bolt circle diameter
• Center hole diameter of 2.835 inches (72 mm)
• Weight approximately 23.55 lbs (10.7 kgs)
• ABS tone ring not included

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 routine maintenance and repair on vehicles like the Jeep Grand Cherokee. The 121.58004 rotor maintains the original equipment dimensions and vented design to ensure proper heat management and rotor longevity.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to enhance airflow and reduce brake fade during operation. The smooth surface finish supports even pad contact and wear. With a nominal thickness of 1.102 inches (28.0 mm) and a discard thickness of 1.096 inches (27.85 mm), this rotor provides a clear service limit for safe replacement. The rotor’s overall height is 2.693 inches (68.4 mm), and it includes five lug holes sized at 0.642 inches (16.3 mm) diameter on a 5-inch (127 mm) bolt circle, ensuring compatibility with Jeep Grand Cherokee wheel hubs. The center hole diameter of 2.835 inches (72 mm) allows for proper mounting and alignment.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Improving braking performance on Jeep Grand Cherokee models
• Resolving noise or vibration issues related to rotor surface irregularities
• Maintaining proper rotor cooling to prevent brake fade

Installation Notes and Tips

Ensure the rotor surface is clean and free of rust or debris before installation. Verify the rotor thickness with a micrometer to confirm it meets minimum specifications. Use proper torque settings on lug nuts to avoid rotor warping. Since this rotor does not include bearings or an ABS tone ring, reuse existing components or replace separately as needed. It is recommended to replace brake pads simultaneously for optimal braking performance.

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 for part number 121.58004 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.