Centric 320.39028H Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor Overview

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.39028H, is built for rear brake service on select Volvo S40 and V40 applications, plus Mitsubishi Space Star models. It combines a fully coated finish with high-carbon metallurgy to support OE-style braking performance and corrosion resistance.

For drivers searching for a rear brake rotor for 1999-2012 Volvo S40, 1999-2004 Volvo V40, or 2003-2004 Mitsubishi Space Star, this Centric GCX rotor is engineered around vehicle-specific fitment and material matching.

Key Features

• Part number 320.39028H Centric GCX Elemental Protection Disc Brake Rotor
• Fully coated disc finish with coated hat and non-mating surfaces protected against rust
• High-carbon rotor metallurgy for OE-style thermal and wear characteristics
• Solid rotor design with smooth surface type
• Rear position fitment for select Volvo S40, Volvo V40, and Mitsubishi Space Star applications
• 4-lug mounting pattern with 114.3 mm bolt circle diameter
• 260 mm outside diameter and 10.0 mm nominal thickness

Detailed Description

Centric’s GCX Elemental Protection line is built to match original equipment performance while adding corrosion protection across the rotor’s exposed surfaces. The RS200-style coating on non-mating areas helps preserve appearance and resist rust, while the application-specific coating pattern is matched to brake pad friction type. The rotor metallurgy uses Centric’s high-carbon formulation to align with OEM-style material profiles for the vehicle.

This part number 320.39028H is a rear disc brake rotor for 2001-2012 Volvo S40, 1999-2004 Volvo V40, and 2003-2004 Mitsubishi Space Star models. It is a solid, smooth rotor with a floating disc mounting design, 4 lug holes, a 90.1 mm center hole diameter, and a 41 mm overall height.

What This Rotor Helps Address

• Rear brake vibration caused by worn or uneven rotor surfaces
• Brake noise related to rotor wear or surface corrosion
• Rust buildup on exposed rotor areas
• Reduced braking consistency from rotor thickness loss
• Fitment issues when replacing a rear rotor on select Volvo S40, Volvo V40, or Mitsubishi Space Star vehicles

Installation Notes and Tips

Verify rear axle fitment, 4-lug configuration, and rotor dimensions before installation. This rotor is listed for rear use only and should be matched to the vehicle’s brake pad type and caliper setup. Clean the hub mounting surface thoroughly before installing the rotor to help prevent runout from debris or corrosion. Part number 320.39028H is also searched as a rear brake rotor for Volvo S40 and Volvo V40 applications.

Quality Assurance

Centric designs the GCX rotor line to align with OE performance targets and vehicle-specific metallurgy requirements. The fully coated finish and high-carbon construction are intended to provide durable corrosion protection and consistent service life across the listed applications.