Centric 121.44090 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.44090

The Centric C-TEK Standard Disc Brake Rotor 121.44090 is engineered for reliable braking performance on select Lexus models. Designed as a solid rotor with a smooth surface, it provides consistent stopping power for vehicles like the Lexus GS300, GS400, GS430, IS300, and SC430.

• Compatible with Lexus GS300, GS400, GS430, IS300, and SC430
• Part number: 121.44090
• Solid disc brake rotor with smooth surface finish
• Outside diameter: 12.087 inches (307.0 mm)
• Nominal thickness: 0.472 inches (12.0 mm)
• Discard thickness: 0.413 inches (10.5 mm)
• Overall height: 2.492 inches (63.3 mm)
• 5 lug holes with 0.571 inch (14.5 mm) diameter
• Center hole diameter: 2.441 inches (62.0 mm)
• Mounting bolt hole circle diameter: 4.5 inches (114.3 mm)
• Weight approximately 12.5 lbs (5.68 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers OEM-quality replacement rotors designed to meet factory specifications. This product line focuses on providing solid rotors with smooth surfaces that ensure consistent brake pad contact and reliable performance. The 121.44090 rotor is part of this line, delivering precise fitment and durability for Lexus vehicles requiring standard replacement rotors.

Detailed Product Description

This Centric disc brake rotor is a solid type rotor, meaning it does not have venting channels, which suits applications where standard braking performance is required without additional cooling features. The smooth surface finish helps reduce brake pad wear and noise. With a nominal thickness of 0.472 inches and a discard thickness of 0.413 inches, this rotor maintains safe braking performance until the minimum thickness is reached. The rotor’s outside diameter of 12.087 inches ensures proper fitment on compatible Lexus models. It features a 5-lug hole pattern with a 4.5-inch bolt circle diameter, matching factory specifications for secure mounting.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Lexus GS300, GS400, GS430, IS300, and SC430
• Eliminates brake pulsation caused by uneven rotor surfaces
• Restores proper braking performance and pedal feel
• Addresses rotor thickness below manufacturer discard limits
• Prevents brake noise related to rotor surface irregularities

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum specifications
• Clean rotor surface to remove any protective coatings or contaminants
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Check wheel bearing condition as bearings are not included with this rotor

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to provide consistent braking performance and durability when installed and maintained according to vehicle manufacturer guidelines.