Wagner Brake MX688A Disc Brake Pad Set - Rear

Wagner ThermoQuiet MX688A Rear Brake Pads

Wagner Brake ThermoQuiet MX688A disc brake pads are built for rear brake service on select Jaguar applications. This set uses a semi-metallic friction formula with zero-copper construction and Integrally Molded Insulator (IMI) technology to support quieter braking performance.

Fits 1997-2006 Jaguar XK8, rear; Fits 1998-2003 Jaguar XJ8, rear; Fits 1998-2003 Jaguar Vanden Plas, rear; Fits 1998-2001 Jaguar XJR, rear; Fits 2002-2003 Jaguar Vanden Plas, rear without Brembo brakes; Fits 2002-2003 Jaguar XJR, rear without Brembo brakes; Fits 2003 Jaguar XJR, rear without Brembo brake system.

Key Features

• Semi-metallic friction material for rear disc brake service
• Zero-copper friction formulation
• Integrally Molded Insulator (IMI) technology for quieter operation
• Outer pad friction material thickness: 0.642
• Inner pad friction material thickness: 0.642
• FMSI number: 7563A-D688
• Part number: MX688A

Product Details

The Wagner ThermoQuiet line focuses on controlled braking feel and reduced noise through pad construction, not just friction material alone. MX688A is a rear disc brake pad set for Jaguar XK8, XJ8, Vanden Plas, and XJR models listed above, including OE-style rear brake applications and specific non-Brembo configurations where noted. The semi-metallic compound and IMI design work together to support consistent pedal response and quieter operation in everyday driving.

This part cross-references Raybestos Brakes PGD688AM for the same application. The Wagner Brake MX688A also cross-references Centric Parts 104.06881 for the same application.

Common Brake Issues It Can Address

• Rear brake noise during stops
• Worn friction material on Jaguar rear brake pads
• Uneven braking feel from aged pads
• Reduced braking performance caused by pad wear
• Service replacement for OE-style rear brake maintenance

Installation Notes and Tips

Verify rear brake fitment by year, model, and brake system before installation, especially on 2002-2003 Jaguar Vanden Plas and XJR applications with Brembo-related exclusions. Inspect rotors, caliper hardware, and pad contact surfaces before installing new pads. Because pad shims, abutment clips, chamfered edges, and wear sensors are not included, reuse or replace related components as needed during brake service. Proper bedding-in after installation helps establish stable pad-to-rotor contact.

Quality Assurance

Wagner Brake ThermoQuiet pads are engineered with a zero-copper friction formulation and IMI technology to support quieter rear brake operation. MX688A is identified by FMSI 7563A-D688 and is built for the confirmed Jaguar rear applications listed above.