Nissens 831385 Engine Auxiliary Water Pump

Nissens Electric Auxiliary Water Pump 831385

The Nissens 831385 engine auxiliary water pump is built for 12-volt electric cooling systems that need stable coolant circulation and reliable electrical compatibility. It is a direct-fit style replacement for select Lexus and Toyota applications, including Lexus NX350, RX350, TX350, Toyota Grand Highlander, Highlander, and Mirai.

Key Features

• Electric operation for auxiliary coolant flow control
• 12-volt design for the specified vehicle electrical systems
• Plastic housing for lightweight construction
• Mounting bracket included for installation support
• Fully tested for pumping efficiency and electrical compatibility
• Built with high-grade materials to help resist overheating and vibration

Product Details

This Nissens electric water pump, part number 831385, is engineered for engine cooling circuits that rely on an auxiliary pump to move coolant when the main system alone is not enough. The design focuses on consistent flow, fitment accuracy, and electrical match-up for the listed Lexus and Toyota models. It is a practical replacement choice for drivers searching for an auxiliary water pump for 2022-2025 Lexus NX350, 2023-2025 Lexus RX350, 2024-2025 Lexus TX350, 2024-2025 Toyota Grand Highlander, 2023-2024 Toyota Highlander, or 2021-2024 Toyota Mirai.

This part cross-references Gates 41564E for the same application.

What It Helps Address

• Coolant circulation problems in the auxiliary cooling circuit
• Overheating caused by a weak or failed electric water pump
• Noise or vibration from a worn pump assembly
• Electrical mismatch from an incorrect replacement pump
• Poor fitment when replacing the original auxiliary pump

Installation Notes

• Confirm vehicle application by year, make, and model before ordering.
• Gasket or seal is not included, so inspect the sealing components during service.
• Hardware is not included.
• Use the included mounting bracket as required by the application.
• Verify connector condition and system voltage before installation.

Quality Assurance

Nissens manufactures this auxiliary water pump with tested pumping performance, fit, and electrical compatibility in mind. The part number 831385 is produced using materials selected to help protect the cooling system from heat-related wear and vibration-related stress.