Centric 320.44141F Disc Brake Rotor - Rear

Rear Brake Rotor for Lexus IS and GS

Centric GCX Elemental Protection Disc Brake Rotor, part number 320.44141F, is a rear disc brake rotor built for OE-style fit and corrosion resistance. It is engineered for Lexus applications including IS250, IS350, GS350, GS450h, GS460, GS430, and GS300 models across the listed years.

The GCX FC full-coating design uses Centric’s RS200 finish on non-mating surfaces to help protect the rotor from rust while maintaining a clean appearance over time. This rotor also uses application-specific metallurgy and coating patterns to align with the brake pad friction type and OEM-style rotor requirements.

Key Features

• Part number 320.44141F rear disc brake rotor
• Fully coated disc finish with coated hat surface
• Vented rotor design with smooth surface type
• Outside diameter: 310 mm (12.205 in)
• Nominal thickness: 17.8 mm (0.701 in)
• Discard thickness: 16.5 mm (0.650 in)
• 5-lug pattern with 114.3 mm (4.500 in) bolt circle
• Floating disc mounting and straight vane style
• Center hole diameter: 62.0 mm (2.441 in)

Product Details

Centric GCX Elemental Protection Disc Brake Rotors are built to match OE performance targets while adding corrosion protection on exposed surfaces. The full coating helps reduce rust on the hat and other non-mating areas, which is useful for maintaining rotor appearance on Lexus IS250 rear brake rotor and Lexus GS350 rear brake rotor applications. The rotor metallurgy is matched to OEM-style requirements, with Centric using enhanced carbon or high carbon alloy formulations depending on the application profile. Part number 320.44141F is a direct-fit rear rotor choice for drivers servicing Lexus IS and GS platforms.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rear brake pulsation caused by worn rotor surfaces
• Rust buildup on exposed rotor areas
• Uneven braking feel from rotor wear
• Noise related to rotor surface condition
• Service replacement needs on Lexus rear brake systems

Installation Notes and Tips

Verify rotor dimensions, hub fitment, and brake pad condition before installation. Clean the hub mounting surface and inspect calipers, slides, and pads for wear before replacing the rotor. This rotor is listed for rear position only and fits the confirmed Lexus applications shown below.

• Fits 2010-2015 Lexus IS250, rear
• Fits 2006-2015 Lexus IS350, rear
• Fits 2011-2013 Lexus IS250, rear, Sport Susp
• Fits 2007-2011 Lexus GS350, rear
• Fits 2007-2011 Lexus GS450h, rear
• Fits 2008-2011 Lexus GS460, rear
• Fits 2006-2007 Lexus GS430, rear
• Fits 2006 Lexus GS300, rear

Quality Assurance

Centric designs the GCX FC rotor line for OE-style performance and corrosion protection, with application-specific coating patterns and metallurgy matched to the vehicle platform. Part number 320.44141F is part of Centric’s GCX coverage for a wide range of Lexus rear brake applications.