Metelli PA856 Engine Water Pump

Reliable Engine Water Pump for BMW 540i, 740i, X5, and Z8

The Metelli PA856 engine water pump is designed to maintain optimal engine temperature in select BMW models. Engineered with durable materials and precise specifications, this water pump ensures consistent coolant flow and reliable performance for your BMW 540i, 740i, 740iL, X5, and Z8 vehicles.

Key Features of the Metelli PA856 Water Pump

• Includes gasket for a complete installation
• Aluminium housing for lightweight durability
• Metal impeller with 7 vanes for efficient coolant circulation
• Roller/ball bearing type with 36mm outside diameter for smooth operation
• Impeller outside diameter measures 74mm for optimal fit and performance
• Brand new, not remanufactured, ensuring original quality

Detailed Description of the Metelli PA856 Engine Water Pump

This engine water pump from Metelli features a robust aluminium housing that offers corrosion resistance and strength while keeping weight low. The metal impeller, equipped with seven vanes, is designed to maximize coolant flow through the engine’s cooling system. The roller/ball bearing with a 36mm outside diameter supports smooth rotation and long service life. Supplied as a new unit, the PA856 includes a gasket to ensure a proper seal during installation, reducing the risk of leaks. This water pump is engineered specifically for BMW models including the 540i, 740i, 740iL, X5, and Z8, providing a precise fit and reliable cooling system performance.

Common Applications and Issues Addressed

• Replacement for failing or leaking water pumps in BMW 540i, 740i, 740iL, X5, and Z8
• Prevents engine overheating caused by coolant circulation failure
• Resolves coolant leaks due to worn seals or gaskets
• Eliminates noise or rough operation from worn bearings
• Restores proper coolant flow for engine temperature regulation

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Replace the included gasket to prevent coolant leaks
• Check the condition of related components such as belts and hoses
• Torque mounting bolts to manufacturer specifications
• Bleed the cooling system after installation to remove air pockets

Quality Assurance and Warranty

The Metelli PA856 engine water pump is manufactured to meet OEM standards for fit and function. As a new part, it undergoes quality control inspections to ensure reliability and durability. The included gasket is designed to provide a secure seal, minimizing the risk of leaks. Warranty coverage details should be confirmed with the distributor or installer, as they may vary by region.