Nissens 831074 Engine Auxiliary Water Pump

Nissens 831074 Auxiliary Water Pump

The Nissens 831074 engine auxiliary water pump is an electric 12V cooling component built for vehicles that use a separate auxiliary coolant circuit. It features a plastic and steel housing, includes a gasket or seal, and is supplied without a pulley, mounting bracket, or bolts.

Compatible With select Honda, Toyota, and Lexus hybrid applications, including Honda Clarity, Honda Insight, Toyota Prius, Toyota Prius C, Toyota Prius V, Toyota Prius Plug-In, Honda Accord, and Lexus CT200h. This part cross-references Airtex Water Pumps (e.g., AW6682) for the same application.

Key Features

• Electric auxiliary water pump for 12V systems
• Plastic / steel housing for cooling-system service
• Gasket or seal included for installation sealing
• No pulley included
• No mounting bracket included
• No bolts included
• Nissens Genuine Nissens Quality manufacturing approach

Detailed Description

Nissens 831074 is an auxiliary water pump used in engine cooling and thermal management systems where electric coolant circulation is required. As an electric unit, it supports coolant flow independently of a belt-driven pump, making it a direct-fit service part for specific hybrid and gasoline applications. The design uses a plastic and steel housing and is specified for 12V operation. Nissens develops thermal and engine efficiency components for the aftermarket, and this part reflects that focus on OE-style replacement quality. Part number 831074 is also referenced by Gates 41500E for the same application.

What It Helps Fix

• Coolant circulation faults in the auxiliary cooling circuit
• Overheating caused by weak or failed electric coolant pumping
• Poor heater performance tied to coolant flow issues
• Temperature control problems in hybrid cooling systems
• Diagnostic trouble codes related to auxiliary pump operation

Installation Notes and Tips

Verify the vehicle’s original pump style, electrical connection, and mounting layout before installation. Replace the gasket or seal during service and inspect the surrounding coolant hoses, connectors, and housing surfaces for wear or contamination. Because this unit is electric, confirm proper voltage supply and system operation after installation. Fitment includes 2010-2015 Toyota Prius, 2012-2019 Toyota Prius C, 2012-2017 Toyota Prius V, 2013-2015 Toyota Prius Plug-In, 2011-2017 Lexus CT200h, 2014-2015 Honda Accord, 2017 Honda Accord, 2018-2021 Honda Clarity, and 2019-2021 Honda Insight.

Quality Assurance

Nissens is a market-leading manufacturer of thermal and engine efficiency components, and its aftermarket range is developed and manufactured to consistent quality standards. The 831074 auxiliary water pump is built to match the specified application requirements for selected Honda, Toyota, and Lexus vehicles.