Metelli PA1040 Engine Water Pump

Reliable Engine Water Pump for BMW 545i, 645Ci, 745i, 745Li, and X5

The Metelli PA1040 engine water pump is designed to maintain optimal engine temperature and ensure efficient coolant circulation in select BMW models. Engineered with durable materials and precise specifications, this water pump supports reliable cooling system performance for your BMW 545i, 645Ci, 745i, 745Li, and X5 vehicles.

• Includes gasket for secure and leak-free installation
• Aluminium housing for lightweight durability
• Brass impeller with 8 vanes for effective coolant flow
• Roller/ball bearing type with 34mm outside diameter for smooth operation
• Impeller outside diameter measures 70mm for optimal fit
• Brand new, not remanufactured, ensuring original quality

Technical Details of the Metelli PA1040 Water Pump

This engine water pump features an aluminium housing that offers corrosion resistance and strength while keeping weight low. The brass impeller, equipped with 8 vanes, is designed to provide consistent coolant flow and resist wear over time. The roller/ball bearing with a 34mm outside diameter supports smooth rotation and long service life. The pump comes complete with a gasket to ensure a proper seal during installation, reducing the risk of leaks. The impeller’s 70mm outside diameter is engineered to match the cooling system requirements of compatible BMW models.

Compatible BMW Models and Applications

This Metelli PA1040 water pump is compatible with the following BMW models: 545i, 645Ci, 745i, 745Li, and X5. It is specifically designed to meet the cooling system demands of these vehicles, making it a suitable replacement part for maintaining engine temperature and preventing overheating.

• Prevents engine overheating by maintaining coolant circulation
• Replaces worn or damaged water pumps causing coolant leaks
• Resolves noisy or failing water pump bearings
• Addresses reduced coolant flow affecting engine performance
• Eliminates coolant contamination from impeller corrosion

Installation Notes and Tips

When installing the Metelli PA1040 water pump, ensure the gasket is properly seated to prevent leaks. It is recommended to inspect the cooling system hoses and thermostat during installation for any signs of wear. Use manufacturer torque specifications for mounting bolts to avoid damage. Bleed the cooling system after installation to remove air pockets and ensure efficient coolant flow.

Quality Assurance and Warranty Information

The Metelli PA1040 engine water pump is a new, high-quality replacement part manufactured to meet OEM standards. It undergoes rigorous quality control to ensure durability and reliable performance. This product includes a gasket and is backed by Metelli’s warranty coverage, providing confidence in its fitment and function for your BMW 545i, 645Ci, 745i, 745Li, and X5 vehicles.