Centric 320.42046F Disc Brake Rotor - Front

Centric GCX Front Brake Rotor for Nissan 300ZX

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.42046F, is built for front brake service on select Nissan 300ZX models. It combines OE-style fitment with a fully coated finish to help resist rust on exposed surfaces while maintaining the braking surface needed for consistent pad contact.

Key Features

• Part number 320.42046F for front brake applications
• Fits 1989-1990 Nissan 300ZX, front
• Vented rotor design with smooth surface type
• Fully coated disc finish and coated hat finish for corrosion resistance
• Outside diameter: 280.0 mm (11.024 in.)
• Nominal thickness: 26.1 mm (1.028 in.); discard thickness: 24.0 mm (0.945 in.)
• 5-lug pattern with 114.3 mm bolt circle and 68.1 mm center hole
• Straight vane style and floating disc mounting

Product Line Details

Centric GCX Elemental Protection Disc Brake Rotors are application-specific rotors engineered to match OE performance targets while adding protection on non-mating surfaces. The GCX full coating approach uses Centric’s RS200 finish to help reduce rust and corrosion, and the rotor metallurgy is matched to OEM-style carbon content for the vehicle application. For the Nissan 300ZX, this helps maintain proper rotor fit, finish, and braking feel over time. Part number 320.42046F is part of that GCX line.

What This Rotor Helps Address

• Front brake rotor rust on exposed surfaces
• Brake pulsation caused by worn or below-spec rotors
• Reduced braking consistency from uneven rotor wear
• Noise or vibration related to rotor surface condition
• Fitment issues when replacing a front rotor on a Nissan 300ZX

Installation Notes and Tips

Verify rotor dimensions, hub fit, and bolt pattern before installation. This rotor is for front position use on 1989-1990 Nissan 300ZX applications listed above, including 1989 Nissan 300ZX front and 1990 Nissan 300ZX front. Inspect pads, calipers, and hub surfaces during service to help ensure even bedding and proper rotor contact. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Centric designs GCX rotors to align with OE performance expectations and vehicle-specific metallurgy requirements. The fully coated finish on non-mating surfaces is intended to improve corrosion resistance and preserve appearance during service life. Part number 320.42046F is engineered for direct front brake rotor replacement on the listed Nissan 300ZX fitments.