Nissens 831084 Engine Auxiliary Water Pump

Nissens Auxiliary Water Pump for BMW Turbo Cooling

The Nissens 831084 engine auxiliary water pump is built for BMW turbocharger cooling systems that require stable electric coolant circulation. It is a 12V unit with an oval connector, a plastic/steel housing, and an included mounting bracket for a direct-fit service replacement.

Compatible with BMW 650i Gran Coupe, 650i xDrive Gran Coupe, X6, M6, X5, 550i, 750i, and related turbocharged applications, this auxiliary pump supports the cooling circuit used to manage heat after boost and high-load driving. The Nissens 831084 is a practical OE-style replacement for vehicles that need dependable turbocharger cooling performance.

Key Features

• Engine auxiliary water pump for turbocharger cooling systems
• 12V electrical design with oval connector shape
• Plastic / steel housing construction
• Mounting bracket included
• No pulley included
• No gasket or seal included
• No bolts included
• Cross-references Genuine 11517629916 for the same application

Detailed Description

Nissens part number 831084 is engineered for BMW turbocharger cooling applications where an auxiliary electric pump circulates coolant independently of the main engine-driven system. This helps maintain thermal control around the turbocharger after spirited driving, idle heat soak, or shutdown conditions. Nissens develops thermal management components with a focus on consistent fit and function, and this pump follows that approach with the correct 12V electrical specification and oval connector layout.

Use this pump on BMW 650i, BMW X5, BMW X6, BMW M5, BMW M6, BMW 550i, and BMW 750i applications listed below. The Nissens 831084 also cross-references select aftermarket numbers including ACP1046 and AP8262 for the same application.

Vehicle Fitment

• Fits 2013-2019 BMW 650i Gran Coupe, turbocharger cooling.
• Fits 2013-2019 BMW 650i xDrive Gran Coupe, turbocharger cooling.
• Fits 2008-2019 BMW X6, turbocharger cooling.
• Fits 2012-2018 BMW 650i, turbocharger cooling.
• Fits 2012-2018 BMW 650i xDrive, turbocharger cooling.
• Fits 2012-2018 BMW M6, turbocharger cooling.
• Fits 2014-2018 BMW M6 Gran Coupe, turbocharger cooling.
• Fits 2011-2018 BMW X5, turbocharger cooling.
• Fits 2010-2017 BMW 550i GT xDrive, turbocharger cooling.
• Fits 2011-2016 BMW 550i, turbocharger cooling.
• Fits 2011-2016 BMW 550i xDrive, turbocharger cooling.
• Fits 2013-2016 BMW M5, turbocharger cooling.
• Fits 2010-2015 BMW 550i GT, turbocharger cooling.
• Fits 2009-2015 BMW 750i, turbocharger cooling.
• Fits 2010-2015 BMW 750i xDrive, turbocharger cooling.
• Fits 2009-2015 BMW 750Li, turbocharger cooling.
• Fits 2010-2015 BMW 750Li xDrive, turbocharger cooling.

Common Replacement Reasons

• Electric auxiliary pump failure causing reduced coolant circulation
• Turbocharger heat buildup after driving or engine shutdown
• Cooling system fault codes related to auxiliary pump operation
• Intermittent overheating concerns in turbocharged BMW models
• Loss of proper after-run cooling performance

Installation Notes

Confirm connector style, voltage, and mounting location before installation. Replace the gasket or seal separately if required, since it is not included. Verify the cooling system is properly bled after service and inspect related hoses, connectors, and wiring for wear before returning the vehicle to service.

Quality Assurance

Nissens is a thermal management manufacturer focused on engine efficiency components and aftermarket cooling solutions. Part number 831084 is produced to match the application requirements for BMW turbocharger cooling service and to support reliable replacement in the listed vehicles.