Metelli PA579 Engine Water Pump

Engine Water Pump with Thermostat Housing

Metelli PA579 is a new engine water pump with thermostat housing for select Volkswagen and Audi applications. Built with an aluminium housing, metal impeller, and integrated gasket/seal, it is a direct-fit cooling system service part for vehicles that require the thermostat housing as part of the pump assembly.

Compatible With Volkswagen Cabrio, Golf, Jetta, Passat, Corrado, Fox, Quantum, Cabriolet, and Audi 80, 90, 4000 applications where the thermostat housing is specified. This part cross-references Gates 21719 and Beck/Arnley 131-1997 for the same application.

Key Features

• Brand: Metelli
• Part number: PA579
• Engine water pump with thermostat housing
• Aluminium housing construction
• Metal impeller with 6 vanes
• Ball/Ball bearing design
• Gasket or seal included
• O-ring included in package contents
• New, not remanufactured

Product Details

Metelli PA579 is built for cooling system service on older Volkswagen and Audi platforms that use a water pump with an integrated thermostat housing. The aluminium housing and metal impeller support durable operation in applications such as the Volkswagen Golf, Jetta, Passat, Cabrio/Cabriolet, Corrado, Fox, Quantum, and Audi 80, 90, and 4000. With a 30 mm bearing outside diameter and a 58.65 mm impeller outside diameter, this pump is specified for the listed fitments and should be matched carefully to the vehicle’s cooling system configuration.

What It Helps Address

• Coolant leakage at the water pump or housing interface
• Overheating caused by a worn or failing pump assembly
• Noisy operation from bearing wear in the pump
• Reduced coolant circulation from impeller wear or damage
• Thermostat housing service needs on listed Volkswagen and Audi models

Installation Notes

Verify engine and cooling system configuration before installation, especially on 1999 Volkswagen Jetta and 1984 Volkswagen Jetta applications with specific thermostat housing notes. Confirm the pump matches the vehicle’s housing style, hub size, and fitment requirements before removal of the existing part. Replace the O-ring and gasket/seal as part of the cooling system service, and inspect mating surfaces for corrosion or residue before assembly.

Quality Assurance

Metelli supplies this PA579 water pump as a new replacement part with integrated housing and sealing components for the listed Volkswagen and Audi applications. The design uses a metal impeller, aluminium housing, and ball bearings to meet the requirements of the specified fitments.