Metelli PA1138 Engine Water Pump

Metelli PA1138 Engine Water Pump

Metelli PA1138 is an engine water pump for select BMW performance models. It is listed for the BMW M3, BMW M5, and BMW M6 across the model years shown below, making it a direct-fit option for cooling system service on these applications.

Key Features

• Engine water pump for BMW cooling system repair
• Fits 2008-2013 BMW M3, N/A
• Fits 2006-2011 BMW M6, N/A
• Fits 2006-2010 BMW M5, N/A
• Metelli part number PA1138 for catalog matching and cross-reference
• This part cross-references GMB (e.g., 115-3310) for the same application.

Detailed Description

Use Metelli PA1138 when replacing a worn or leaking engine water pump on compatible BMW M3, BMW M5, and BMW M6 models. A water pump is a critical part of the engine cooling system, moving coolant through the engine and radiator circuit to help maintain stable operating temperatures. This part number, PA1138, is cataloged for 2008-2013 BMW M3, 2006-2011 BMW M6, and 2006-2010 BMW M5 applications.

What It Helps Address

• Coolant leakage from a failing pump housing or seal
• Overheating caused by reduced coolant circulation
• Noisy operation from a worn pump assembly
• Temperature fluctuations during normal driving
• Cooling system service on BMW M3, BMW M5, and BMW M6 models

Installation Notes and Tips

Verify engine code and cooling system configuration against the vehicle before installation. Inspect the thermostat, hoses, belts, and coolant condition at the same time, since related wear can affect pump performance. Always follow the vehicle service procedure for coolant refill and bleeding after replacement.

Quality Assurance

Metelli is an established aftermarket brand with coverage across European vehicle cooling components. PA1138 is listed with multiple interchange references, including OE-style numbers used for the same application, which helps confirm catalog matching during parts lookup.