Bosch 0392023456 Engine Auxiliary Water Pump

Bosch Engine Auxiliary Water Pump

The Bosch Engine Auxiliary Water Pump, part number 0392023456, is a new OE-style replacement built to match original equipment specifications. It is designed for vehicles that need reliable auxiliary coolant circulation, including Volkswagen e-Golf, Volkswagen Golf, Volkswagen Passat, and Audi A3 applications.

This Bosch auxiliary water pump is tested for torque and vacuum leak integrity to verify proper impeller-to-shaft engagement and sealing performance. Bosch also checks component fitment against original equipment parts to confirm correct mounting and alignment.

Key Features

• Brand: Bosch Engine Auxiliary Water Pump
• Part number: 0392023456
• New replacement designed to OE specifications
• Torque-tested to verify impeller and shaft coupling
• Vacuum leak-tested to confirm sealing at the housing, seals, tube joint, and cap
• Fitment verification uses original equipment components for alignment checks
• Cross-reference: 2Q0965567A

Detailed Description

Use this Bosch auxiliary water pump when servicing the engine cooling system on 2015-2017 Volkswagen e-Golf, 2015 Volkswagen Golf, 2015 Volkswagen Passat, and 2016 Audi A3, including the Audi A3 listing with holder noted in fitment data. The Bosch 0392023456 is intended for auxiliary coolant circulation where stable flow and proper sealing are required for consistent thermal management.

Bosch’s Engine Auxiliary Water Pump line focuses on OE-level fit and function for cooling system service. For buyers searching for a Bosch auxiliary water pump for Volkswagen e-Golf, Volkswagen Golf, or Volkswagen Passat, this part number 0392023456 provides a direct replacement option with application-specific fitment.

What It Is Used For

• Replacing a leaking auxiliary coolant pump
• Restoring coolant circulation in the engine auxiliary cooling circuit
• Addressing overheating concerns tied to pump wear or seal failure
• Correcting noise or poor operation caused by internal pump damage
• Servicing OE-style cooling system components on Volkswagen and Audi models

Installation Notes and Tips

Confirm vehicle fitment by year, make, and model before installation. This part fits 2015-2017 Volkswagen e-Golf, 2016 Audi A3, 2015 Volkswagen Golf, and 2015 Volkswagen Passat, all in N/A position listings for engine auxiliary water pump applications. Inspect related cooling system components, electrical connections, and mounting surfaces during replacement to help ensure proper operation after installation.

Quality Assurance

Bosch tests each water pump for torque and vacuum leak performance and verifies component fit using original equipment parts. These checks help confirm proper impeller engagement, sealing, and mounting alignment for the Bosch 0392023456 auxiliary water pump.