Centric 320.34075H Disc Brake Rotor - Front

Centric GCX Front Brake Rotor for BMW X3

The Centric GCX Elemental Protection Disc Brake Rotor is built for OE-style braking performance with added resistance to rust and corrosion. This fully coated, high-carbon vented front rotor is engineered for 2004-2010 BMW X3 applications and is designed to maintain a clean appearance while supporting consistent braking performance.

Key Features

• Fits 2004-2010 BMW X3, front
• Part number: 320.34075H
• Fully coated disc finish with coated hat for corrosion protection
• High carbon rotor metallurgy for OE-matched application requirements
• Vented rotor design with smooth surface type
• Outside diameter: 12.795 in. / 325.000 mm
• Nominal thickness: 0.984 in. / 25.000 mm
• Discard thickness: 0.921 in. / 23.400 mm
• 5-lug pattern with 120.000 mm bolt circle diameter
• Floating center mounting with straight vane style

Product Details

Centric’s GCX Elemental Protection line focuses on application-specific rotor construction, including coating patterns matched to brake pad friction characteristics and metallurgy selected to align with OEM-style vehicle requirements. For BMW X3 front brake service, part number 320.34075H provides a vented, smooth-surface rotor with full coating on non-mating surfaces to help reduce visible corrosion and preserve rotor appearance over time. The GCX line is built for broad coverage across many late-model vehicles, and this BMW X3 front rotor follows that approach with dimensions and construction tailored to the listed fitment.

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

Common Problems This Rotor Can Address

• Front brake rotor rust on exposed surfaces
• Brake pulsation caused by worn or below-spec rotors
• Reduced braking consistency from rotor wear
• Unsightly corrosion on the hat and non-mating surfaces
• Need for an OE-style replacement rotor for BMW X3 front service

Installation Notes and Tips

Verify rotor dimensions, hub fitment, and wheel clearance before installation. Clean the hub mounting surface thoroughly to help prevent runout-related issues, and inspect pads, calipers, and hardware condition during brake service. For best results, follow the vehicle manufacturer’s brake bedding procedure after installation. Fits 2004-2010 BMW X3, front.

Quality Assurance

Centric designs GCX rotors to match OE performance targets while using advanced RS200 coating on non-mating surfaces for added rust and corrosion protection. The high-carbon metallurgy and application-specific coating approach are intended to support long service life and consistent appearance on the vehicle.