Centric 120.44189 Disc Brake Rotor - Rear

Overview of Centric Premium Disc Brake Rotor 120.44189

The Centric Premium Disc Brake Rotor 120.44189 is engineered for reliable braking performance on select Lexus models. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking for vehicles such as the Lexus GS350 and IS300.

• Compatible with Lexus GS200t, GS300, GS350, GS450h, IS200t, IS300, IS350, RC200t, RC300, and RC350
• Part number 120.44189 for precise fitment
• Vented disc design for improved heat management
• Coated hat finish to resist corrosion
• 5 bolt holes with 114.3 mm bolt circle diameter
• Nominal thickness of 18.0 mm and discard thickness of 16.5 mm
• Overall diameter of 310 mm (12.205 inches)
• Smooth surface type for consistent pad contact

Details on Centric Premium Disc Brake Rotors

The Centric Premium Disc Brake Rotors line focuses on delivering rotors that meet or exceed OEM standards for fit, form, and function. This product line emphasizes durability and performance, featuring rotors with vented designs to enhance cooling and reduce brake fade. The 120.44189 rotor includes a coated hat finish to protect against rust and corrosion, extending the rotor's service life. Its smooth surface ensures even brake pad wear and quiet operation, making it suitable for daily driving conditions on Lexus vehicles.

Technical Specifications and Features

This disc brake rotor features a vented design with an outside diameter of 310 mm and an overall height of 67.4 mm. The nominal thickness is 18.0 mm, with a discard thickness of 16.5 mm, indicating when replacement is necessary. The rotor includes five bolt holes arranged on a 114.3 mm bolt circle diameter, compatible with the specified Lexus models. The center hole diameter measures 62 mm, and the rotor uses a floating mounting type. Note that this rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor corrosion or surface damage affecting braking efficiency
• Improving heat dissipation to reduce brake fade during extended use
• Restoring proper rotor thickness to maintain safe braking performance
• Ensuring compatibility with Lexus GS and IS series models for reliable fitment

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below 16.5 mm discard thickness
• Ensure proper cleaning of hub surface to prevent rotor runout
• Use correct torque specifications on mounting bolts to avoid warping
• Check compatibility with vehicle ABS system as 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 Premium Disc Brake Rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details for part number 120.44189 should be confirmed with the supplier, Centric generally offers coverage against defects in materials and workmanship. Proper installation and maintenance are essential to maximize rotor lifespan and performance.