Centric 320.39029H Disc Brake Rotor - Front

Centric GCX Front Brake Rotor Overview

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.39029H, is a front vented rotor built for Volvo applications that call for a 286 mm disc. It combines a fully coated finish with high-carbon metallurgy to support OE-style braking performance and long-term corrosion resistance.

Compatible With 1999-2009 Volvo S80, 2001-2009 Volvo S60, 2001-2007 Volvo V70, and 2003-2007 Volvo XC70 front brake applications.

Key Features

• Part number 320.39029H
• Fully coated disc finish with coated hat for added rust protection on non-mating surfaces
• High-carbon rotor construction for OE-matched metallurgy
• Vented rotor design with straight vanes
• 286 mm outside diameter, 26.0 mm nominal thickness, 23.0 mm discard thickness
• 5-lug pattern with 108 mm bolt circle and 68 mm center hole diameter
• Floating disc mounting and smooth surface type
• Centric GCX Elemental Protection Disc Brake Rotors line for application-specific coating patterns

Detailed Description

Centric GCX rotors are engineered to match original equipment braking characteristics while adding protection against rust and corrosion on exposed surfaces. The RS200 coating is applied to the non-mating areas, helping the rotor maintain a cleaner appearance over time. The GCX line also uses application-specific coating patterns and rotor metallurgy selected to align with the vehicle’s OEM profile. For Volvo S60, Volvo V70, Volvo XC70, and Volvo S80 front brake service, 320.39029H provides a direct-fit rotor option with the dimensions and vented construction required for these platforms.

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

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 heat-stressed rotor material
• Noise or vibration associated with uneven rotor wear
• Fitment issues on Volvo front brake systems requiring a 286 mm vented rotor

Installation Notes and Tips

Verify rotor diameter, thickness, center hole diameter, and bolt circle before installation. This rotor is for front axle use and does not include ABS tone ring or bearings. Inspect pads, calipers, and hub surfaces during service, and clean the hub face thoroughly to help prevent runout-related brake noise or pedal pulsation. Always follow the vehicle manufacturer’s torque specifications and bedding procedure after installation.

Quality Assurance

Centric designs the GCX rotor line to meet OE performance expectations while improving corrosion protection on non-mating surfaces. The brand’s application-specific coating patterns and high-carbon metallurgy are used to support consistent fit and braking behavior across a wide range of vehicles, including Volvo S60, V70, XC70, and S80 front brake applications.