Centric 320.44089F Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor for Lexus and Toyota

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.44089F, is a rear solid rotor built for select Lexus RX300 and Toyota Highlander applications. Its fully coated disc finish and coated hat help protect exposed surfaces, while the smooth braking surface supports consistent rear brake service.

Key Features

• Centric GCX Elemental Protection Disc Brake Rotors - Full Coating
• Part number 320.44089F
• Rear disc brake rotor for select 1999-2003 Lexus RX300 and 2001-2003 Toyota Highlander applications
• Fully coated disc finish with coated hat finish
• Smooth surface type for rear brake replacement service
• Solid rotor design
• 5-lug pattern with 114.3 mm bolt circle
• Outside diameter: 288.0 mm; nominal thickness: 10.0 mm

Product Details

Centric GCX Elemental Protection Disc Brake Rotors are built for drivers who need a direct rear rotor replacement with corrosion protection on exposed metal surfaces. This rotor measures 288.0 mm in outside diameter, 10.0 mm nominal thickness, and 60.1 mm overall height, with a 62.0 mm center hole diameter and 5 lug holes on a 114.3 mm bolt circle. The solid rotor construction and smooth finish support rear brake service on the Lexus RX300 and Toyota Highlander listed below. The part number 320.44089F is a fitment-specific rear rotor for these applications.

Fits 1999-2003 Lexus RX300, rear. Fits 2001-2003 Toyota Highlander, rear. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Rotor Helps Address

• Rear brake rotor wear that affects braking consistency
• Surface corrosion on exposed rotor areas
• Brake pulsation related to rotor thickness variation
• Noisy or uneven rear braking from worn rotor surfaces
• Replacement needs for service-worn rear brake components

Installation Notes and Tips

Verify rear axle fitment, bolt circle, center hole diameter, and rotor dimensions before installation. Clean the hub mounting surface thoroughly so the rotor seats flat, and inspect pads, calipers, and hardware condition during brake service. Confirm the rotor matches the vehicle’s rear application before assembly. Part number 320.44089F is listed for rear use on the vehicles shown above.

Quality Assurance

Centric GCX Elemental Protection rotors use a full coating on the disc and a coated hat finish to help protect the rotor surfaces during normal service and storage. The product specifications provided here support accurate fitment selection for Lexus RX300 and Toyota Highlander rear brake replacement.