Nissens 831114 Engine Auxiliary Water Pump

Engine Auxiliary Water Pump for Prius Hybrid Cooling

This Nissens engine auxiliary water pump is built for thermal management in the 2004-2009 Toyota Prius with Heat Storage Tank Assy. application. It uses a 12-volt electrical design, an oval connector shape, and a plastic/steel housing to match the vehicle’s auxiliary cooling system requirements.

Key Features

• Engine auxiliary water pump for hybrid cooling system service
• 12-volt electrical specification
• Oval connector shape for the listed application
• Plastic / steel housing construction
• No pulley, gasket or seal, mounting bracket, or bolts included
• Compatible with 2004-2009 Toyota Prius, Heat Storage Tank Assy.

Detailed Description

Nissens Part Number 831114 is an engine auxiliary water pump developed for thermal and engine efficiency systems. In the Toyota Prius, this component supports coolant circulation in the Heat Storage Tank Assy. setup, helping maintain proper temperature control in hybrid operation. Nissens Part Number 831114 is engineered with a plastic and steel housing and an oval connector shape to align with the listed vehicle application. This part cross-references Dayco 89034 for the same application.

Common Problems This Part Can Address

• Loss of auxiliary coolant circulation in the hybrid thermal system
• Temperature control issues related to the Heat Storage Tank Assy.
• Electrical pump failure in a 12-volt auxiliary cooling circuit
• Connector or housing mismatch during replacement service
• Coolant flow interruption affecting Prius thermal management

Installation Notes and Tips

Verify the connector shape, voltage, and mounting points before installation. This pump does not include a pulley, gasket or seal, mounting bracket, or bolts, so confirm the vehicle’s service requirements before beginning the repair. For 2004-2009 Toyota Prius applications, match the part to the Heat Storage Tank Assy. configuration and inspect the surrounding cooling components for wear or leakage during service.

Quality Assurance

Nissens develops thermal management components with a focus on consistent manufacturing standards across its aftermarket range. Part Number 831114 is produced as a dedicated auxiliary water pump for the listed Prius application, with construction and electrical specifications aligned to the original system requirements.