Gates 41537E Engine Auxiliary Water Pump

Electric Auxiliary Water Pump Overview

Gates 41537E is an electric engine auxiliary water pump built for steady cooling-system and heating-system circulation. It is a direct OE-performance replacement for select Mercedes-Benz ML320, ML430, and ML55 AMG applications, with a plastic housing and plastic impeller for lightweight, durable operation.

The Gates Water Pump (Electric) line focuses on OE-style fit and reliable operation for vehicles using electric coolant circulation. Part number 41537E serves popular Mercedes-Benz applications and helps restore proper coolant flow when the original auxiliary pump is no longer performing as expected.

Key Features

• Electric drive style for auxiliary coolant circulation
• Plastic housing and plastic impeller
• Standard impeller rotation
• Single outlet configuration
• OE Performance comparison rating
• No back housing, pulley, or fan clutch included

Detailed Product Description

This Gates engine auxiliary water pump is engineered for vehicles that rely on an electric pump to move coolant through the heating and cooling circuits. The 41537E uses a plastic housing and impeller to support dependable operation under demanding driving conditions, while its OE-performance rating reflects a fit and function approach aligned with original equipment expectations. It is a practical replacement for Mercedes-Benz ML320, ML430, and ML55 AMG models that require an electric auxiliary water pump.

Cross-reference part numbers for this application include Dorman - OE Solutions 902-074 and Genuine 0018356064.

What It Helps Address

• Weak or inconsistent cabin heat from reduced auxiliary coolant flow
• Cooling-system circulation issues caused by a failing electric pump
• Temperature control problems during idle or low-speed operation
• Noisy or worn auxiliary pump operation
• Loss of proper heating and cooling system performance

Installation Notes and Tips

• Verify the vehicle uses an electric auxiliary water pump before ordering.
• Confirm connector, outlet, and mounting details against the original unit.
• Inspect coolant condition and hoses during replacement.
• Bleed the cooling system after installation to remove trapped air.
• Use the vehicle service procedure for Mercedes-Benz ML320, ML430, and ML55 AMG applications.

Quality Assurance

Gates manufactures this electric water pump using premium materials for durable operation and OE-quality fit. Part number 41537E is built to restore proper cooling and heating system performance in supported Mercedes-Benz applications.