Bosch 039202401D Auxiliary Electric Water Pump

The Bosch 039202401D is an electric auxiliary water pump engineered to provide supplemental coolant circulation in vehicles equipped with turbocharged engines or advanced HVAC systems. Unlike the primary mechanical water pump driven by the engine belt, this electric pump operates independently to ensure consistent coolant flow to the heater core, turbocharger, and other thermal management components — even when the engine is at idle or has been shut off.

Manufactured by Bosch, a globally recognized leader in automotive components, this auxiliary coolant pump is built to OEM standards for reliable, long-lasting performance. It is a direct-fit replacement designed to restore proper cooling and heating system function.

Key Features:

• Electric auxiliary water pump for supplemental coolant circulation
• Supports turbocharger cooldown and heater core performance
• OEM-quality construction to Bosch manufacturing standards
• Direct-fit replacement for easy installation
• Operates independently of the main engine-driven water pump
• Helps maintain proper thermal management at idle and post-engine shutoff

The Bosch 039202401D auxiliary water pump is ideal for restoring original equipment performance in vehicles where the secondary coolant pump has failed, which can result in reduced heat output, overheating of the turbocharger, or cooling system warning indicators.