Centric 320.42120F Disc Brake Rotor - Front

Centric GCX Front Brake Rotor

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.42120F, is a front vented rotor built for vehicles that need consistent braking performance and corrosion-resistant surface protection. Its fully coated finish and coated hat help protect exposed metal surfaces, while the smooth braking surface supports even pad contact.

Compatible With select INFINITI and Nissan front brake applications, including INFINITI Q50, Nissan Murano, Nissan Z, INFINITI Q60, INFINITI QX60, Nissan 370Z, Nissan Pathfinder, INFINITI QX50, and INFINITI JX35. This rotor is sized for a 319.8 mm outside diameter and 28.0 mm nominal thickness, with a 26.0 mm discard thickness.

Key Features

• Part number 320.42120F front disc brake rotor
• Fully coated disc finish with coated hat finish for added surface protection
• Vented rotor design with straight vane style
• Smooth surface type for stable pad-to-rotor contact
• 5-lug pattern with 114.3 mm bolt circle diameter
• Floating disc mounting and 68.0 mm center hole diameter
• Outside diameter: 319.8 mm; overall height: 49.3 mm

Product Details

Centric GCX Elemental Protection Disc Brake Rotors are built for front axle service where rotor fit, finish, and corrosion resistance matter. The GCX full coating helps protect the rotor surfaces and hat area from environmental exposure, making it a practical choice for daily-driven vehicles that see wet or salted-road conditions. This rotor cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Fits 2014-2023 INFINITI Q50, front. Fits 2015-2023 Nissan Murano, front. Fits 2023 Nissan Z, front. Fits 2022 INFINITI Q60, front. Fits 2017-2021 INFINITI Q60, front. Fits 2014-2020 INFINITI QX60, front. Fits 2020 Nissan 370Z, front. Fits 2013-2020 Nissan Pathfinder, front. Fits 2016-2017 INFINITI QX50, front. Fits 2013 INFINITI JX35, front.

Common Issues This Rotor Can Address

• Front brake pulsation caused by worn or uneven rotor surfaces
• Brake noise related to rotor wear or surface scoring
• Reduced braking consistency from rotor thickness loss
• Corrosion on exposed rotor and hat surfaces
• Fitment issues when replacing a front vented 320 mm rotor

Installation Notes and Tips

Verify rotor diameter, thickness, center hole, and bolt pattern before installation. This rotor uses a floating mounting design and is intended for front applications only. Inspect pads, calipers, and hub surfaces during service, and confirm the vehicle’s brake package matches the listed fitment notes, especially on INFINITI Q60 applications with 320 mm front discs.

Quality Assurance

Centric manufactures brake components for OE-style replacement use, and the GCX Elemental Protection line focuses on coated rotor protection and consistent service fitment. Part number 320.42120F is specified for the listed INFINITI and Nissan front applications.