Wagner Brake MX9 Disc Brake Pad Set - Front or Rear

Wagner ThermoQuiet MX9 Rear Brake Pads

Wagner Brake ThermoQuiet MX9 disc brake pads are built for rear applications that call for a semi-metallic friction formula and quieter operation. The zero-copper friction material and Integrally Molded Insulator (IMI) technology are engineered to reduce brake noise while maintaining consistent pedal feel.

Compatible with select Aston Martin, Jaguar, and Maserati rear brake applications, the Wagner ThermoQuiet MX9 is a fitment-focused replacement for vehicles such as the Jaguar XJS, Jaguar XJ6, and Maserati Quattroporte. This part number is also referenced as MX9 for catalog and interchange lookup.

Key Features

• Semi-metallic disc brake pad set for rear brake service
• Zero-copper friction formulation
• Integrally Molded Insulator (IMI) technology for quieter operation
• Outer pad friction material thickness: 0.605
• Inner pad friction material thickness: 0.605
• FMSI number: 721-D9
• Pad wear sensor not included
• Shims, abutment clips, and chamfered edges not included
• Slotted design: no

Product Details

The Wagner Brake ThermoQuiet line focuses on controlled friction behavior and noise reduction through pad construction rather than added hardware. On this MX9 pad set, the semi-metallic composition supports rear braking performance, while the IMI layer helps isolate vibration at the pad backing plate. That makes it a practical choice for older luxury and performance vehicles that require a rear pad with OE-style fitment and a quieter brake response.

This part cross-references Raybestos Brakes PGD9M for the same application.

What It Helps Address

• Rear brake squeal during normal stopping
• Brake vibration caused by pad resonance
• Worn rear pads on OE-style brake systems
• Reduced braking consistency from aged friction material
• Fitment replacement needs for Jaguar XJS, Jaguar XJ6, and Maserati Quattroporte rear brakes

Installation Notes

Verify rotor condition, caliper operation, and pad fitment before installation. Because shims, abutment clips, and wear sensors are not included, reuse or replace those components as required by the vehicle and brake system. Confirm the rear application and serial-number notes where listed, including the 1993 Jaguar XJRS rear fitment note.

Fits 1997 Aston Martin DB7, rear; 1990-1994 Aston Martin Virage, rear; 1993 Jaguar XJRS, rear; 1976-1992 Jaguar XJS, rear; 1987-1988 Aston Martin Zagato, rear; 1982-1987 Jaguar Vanden Plas, rear; 1972-1987 Jaguar XJ6, rear; 1980-1986 Maserati Quattroporte, rear; 1968-1970 Maserati Quattroporte, rear; 1973-1979 Jaguar XJ12, rear; 1969-1971 Jaguar XJ, rear.

Quality Assurance

Wagner Brake ThermoQuiet pads are built around a zero-copper friction formulation and IMI noise-control technology for consistent rear brake service. The MX9 part number is cataloged for multiple OE-style applications across Aston Martin, Jaguar, and Maserati platforms.