Metelli PA779 Engine Water Pump

Reliable Engine Water Pump for Audi and Volkswagen Models

The Metelli PA779 engine water pump with thermostat housing is designed to maintain optimal engine temperature in select Audi and Volkswagen vehicles. Engineered with durable materials and precise specifications, this water pump ensures efficient coolant circulation for reliable performance.

• Includes thermostat housing for integrated cooling system management
• Housing made from lightweight and corrosion-resistant aluminium
• Techno-polymer impeller with 7 vanes for effective coolant flow
• Ball/ball bearing type with 30mm outside diameter for smooth operation
• Comes with gasket and o-ring for secure installation and leak prevention
• New, not remanufactured, ensuring original quality and longevity

Product Line: With Thermostat Housing

The Metelli "With Thermostat Housing" product line integrates the thermostat housing directly with the water pump assembly. This design simplifies installation and improves cooling system reliability by reducing potential leak points. The PA779 model benefits from this integration, providing a streamlined replacement part for compatible Audi and Volkswagen vehicles.

Technical Details and Compatibility

The PA779 engine water pump features an aluminium housing that offers strength and resistance to corrosion, essential for long-term durability in engine cooling systems. The impeller is constructed from techno-polymer, a material chosen for its resistance to wear and efficient coolant movement, featuring 7 vanes and a 63.5mm outside diameter to optimize flow. The ball/ball bearing with a 30mm outside diameter ensures smooth rotation and reduces mechanical wear. This water pump is compatible with Audi A4, Audi A4 Quattro, and Volkswagen Passat models, making it a precise fit for these vehicles.

Common Applications and Issues Addressed

• Replacement for failing or leaking water pumps in Audi A4 and Volkswagen Passat engines
• Resolves overheating issues caused by inefficient coolant circulation
• Prevents coolant leaks by including a new gasket and o-ring
• Addresses noisy or worn bearings affecting water pump performance
• Improves engine temperature regulation with integrated thermostat housing

Installation Notes and Tips

When installing the Metelli PA779 water pump, ensure the engine is cool and the cooling system is depressurized. Replace the gasket and o-ring included in the package to prevent leaks. Verify compatibility with your specific Audi or Volkswagen model year before installation. Proper torque specifications should be followed to avoid damage to the aluminium housing. It is recommended to inspect the entire cooling system during installation for any additional wear or damage.

Quality Assurance and Warranty

The Metelli PA779 water pump is a new, original part manufactured to meet OEM standards. The use of high-quality materials such as aluminium for the housing and techno-polymer for the impeller ensures durability and reliable performance. The integrated thermostat housing design reduces potential failure points. Warranty coverage details should be confirmed with the distributor or installer, as they may vary by region.