Centric 320.38017H Disc Brake Rotor - Front

Centric GCX Front Brake Rotor Overview

Centric GCX Elemental Protection Disc Brake Rotor 320.38017H is a front vented rotor built for OE-style braking performance and corrosion resistance. It is a fitment-based replacement for select Saab 9-3, Saab 9-3X, and Cadillac BLS applications with a 302mm front disc setup.

The GCX Elemental Protection line uses a full coating on non-mating surfaces and a high-carbon rotor metallurgy profile to match the original equipment design intent. For drivers searching for a front brake rotor for 2003-2011 Saab 9-3 or 2007-2008 Cadillac BLS, this part number 320.38017H is built around the factory dimensions and mounting pattern.

Key Features

• Part number: 320.38017H
• Front disc brake rotor for select Saab and Cadillac applications
• Fully coated disc finish with coated hat for rust and corrosion protection
• Vented rotor design with straight vanes
• High-carbon metallurgy for OE-matched rotor construction
• Surface type: smooth
• 5-lug pattern with 110 mm bolt circle diameter
• Outside diameter: 302 mm (11.890 in.)
• Nominal thickness: 28.000 mm (1.102 in.)
• Discard thickness: 25.000 mm (0.984 in.)

Product Line Details

Centric GCX Elemental Protection rotors are application-specific, with coating patterns and metallurgy selected to align with the brake pad friction type and OEM rotor profile. The RS200 finish is applied to non-mating surfaces to help preserve appearance and resist corrosion over time. This makes the Centric GCX line a practical choice for drivers who want a direct replacement rotor with factory-style fit and finish.

Fitment

• Fits 2009-2011 Saab 9-3, front, 302mm front disc; Performance Package.
• Fits 2003-2011 Saab 9-3, front, 302mm front disc.
• Fits 2010-2011 Saab 9-3X, front, 292mm rear disc; 302mm front disc.
• Fits 2009 Saab 9-3, front, 302mm front disc; Base Brakes.
• Fits 2007-2008 Cadillac BLS, front, 2.8L; 302mm front disc.

What This Rotor Helps Address

• Front brake pulsation caused by worn or below-spec rotors
• Brake noise related to uneven rotor surfaces
• Corrosion on exposed rotor surfaces and hat areas
• Loss of braking consistency from rotor wear near discard thickness
• Fitment issues when replacing a 302mm front disc rotor on Saab 9-3, Saab 9-3X, or Cadillac BLS models

Installation Notes and Tips

Verify rotor diameter, thickness, center hole diameter, and bolt circle before installation. This rotor uses a floating disc mounting design, a 69.900 mm center hole diameter, and a 5-lug, 110 mm bolt circle. Confirm pad condition, caliper operation, and hub cleanliness during brake service to help ensure even rotor contact and proper seating.

Quality Assurance

Centric engineers the GCX line to match OE performance targets and vehicle-specific metallurgy requirements. The rotor is fully coated on non-mating surfaces for added protection against rust and corrosion, and the application-specific design helps ensure the correct rotor profile for the listed Saab 9-3, Saab 9-3X, and Cadillac BLS fitments.