Bosch Auxiliary Water Pump - 0392022010

The Bosch Auxiliary Water Pump (part number 0392022010) is a 100% new electric water pump engineered as a direct OE-replacement cooling system component for a wide range of Mercedes-Benz vehicles. Designed to meet exact original equipment specifications, this Bosch electric auxiliary water pump helps keep coolant circulating properly to the engine, heater core, and supporting systems — making it a critical repair part for any Mercedes owner dealing with cooling or heater performance issues.

Key Features & Benefits

• 100% New Construction: This is a completely new pump — not remanufactured or rebuilt — so you get full service life from day one without inheriting the wear of a core.
• Built to OE Specifications: Designed to meet exact original equipment specifications, ensuring a proper fit and function that matches what came on your Mercedes from the factory.
• 100% Tested Before Shipment: Each unit is fully tested to ensure proper functionality, so you can install with confidence knowing the pump has already been verified to operate correctly.
• Vacuum Leak Tested for Sealing Integrity: Water pumps in this line are vacuum leak tested to ensure proper sealing — a process that detects leaks throughout the housing, seals, tube binding, and plug leakage. This extra step catches failures that visual inspection alone would miss.
• Electric Operation: As an electrically driven auxiliary pump, it operates independently of engine belt speed, delivering consistent coolant flow precisely when and where the cooling system demands it.
• Cross-References OEM Part Numbers: This pump is a direct replacement for Mercedes-Benz OEM part numbers including 0005000186, 0005000386, 000500038660, and 000500038680, simplifying the sourcing process.
• Trusted Bosch Engineering: Bosch is a recognized supplier of original equipment components to major European automakers, and this auxiliary pump carries that same standard of quality into the aftermarket replacement segment.

Specifications

• Brand: Bosch
• Part Number: 0392022010
• Type: Auxiliary Water Pump — Electric
• Condition: 100% New
• OEM Cross-References: Mercedes-Benz 0005000186, 0005000386, 000500038660, 000500038680

Fitment

The Bosch 0392022010 auxiliary water pump is compatible with a broad range of Mercedes-Benz models. Based on available fitment data, compatible applications include:

• Mercedes-Benz C230
• Mercedes-Benz CL55
• Mercedes-Benz CLS55
• Mercedes-Benz E320
• Mercedes-Benz E350
• Mercedes-Benz E500
• Mercedes-Benz E55
• Mercedes-Benz E550
• Mercedes-Benz E63
• Mercedes-Benz G55
• Mercedes-Benz GLE400
• Mercedes-Benz GLE450
• Mercedes-Benz GLE550
• Mercedes-Benz S550

Note: Fitment years and trim levels vary. Always verify your specific vehicle's year, model, and engine against OEM part number 0005000186, 0005000386, 000500038660, or 000500038680 to confirm compatibility before ordering. If you're uncertain, our team at ThreePiece.us can assist with fitment verification.

Why Buy from ThreePiece.us

• Free Shipping on Every Order: No minimum purchase required — your Bosch auxiliary water pump ships free to your door.
• Affirm Financing Available: Spread the cost of your repair over time with flexible financing through Affirm, available at checkout.
• Expert Fitment Help: Not sure if this pump fits your specific Mercedes-Benz build? Our team is here to help you confirm compatibility so you order right the first time.

Frequently Asked Questions

Q: What Mercedes-Benz vehicles does the Bosch 0392022010 fit?
A: This electric auxiliary water pump is compatible with several Mercedes-Benz models including the C230, S550, CL55, CLS55, E320, E350, E500, E55, E550, E63, G55, GLE400, GLE450, and GLE550, among others. Because fitment can vary by year and engine, we recommend cross-referencing your vehicle's OEM part number (0005000186, 0005000386, 000500038660, or 000500038680) to confirm a match.

Q: Is this a new pump or a remanufactured unit?
A: This is a 100% new auxiliary water pump — not remanufactured or rebuilt. It is built to meet exact original equipment specifications and is fully tested before shipment.

Q: What does an auxiliary water pump do on a Mercedes-Benz?
A: The engine auxiliary water pump is a component in the vehicle's cooling system that helps circulate coolant to the engine, heater core, and supporting systems. Unlike the main belt-driven pump, it is electrically operated, allowing it to function on demand regardless of engine speed — which is why a failure can affect both engine cooling and cabin heat performance.

Q: What OEM part numbers does Bosch 0392022010 replace?
A: The Bosch 0392022010 is a direct replacement for Mercedes-Benz OEM part numbers 0005000186, 0005000386, 000500038660, and 000500038680.