Gates 42204BH Engine Water Pump

Gates Water Pump for Mazda Cooling Systems

The Gates 42204BH engine water pump is a standard replacement for select Mazda applications, including Mazda 3, Mazda 3 Sport, CX-30, CX-5, CX-50, CX-9, and Mazda 6 models. Built with a cast aluminum housing and plastic impeller, it is made for accessory-belt-driven cooling systems and includes the gasket needed for installation.

Key Features

• Gates Water Pump (Standard) line for OE-style replacement fitment
• Cast aluminum housing for strength and corrosion resistance
• Plastic impeller with standard rotation
• Accessory belt drive type; not timing-belt driven
• Includes back housing and gasket
• Outlet quantity: 1
• No pulley, fan clutch, or thermostat housing included

Product Details

Gates 42204BH is an engine water pump built for Mazda cooling systems that use an accessory belt drive. Gates tests each new pump for seal and bearing function, then performs leakage checks on both the casting and assembled unit to verify sealing performance before release. The Water Pump (Standard) line focuses on direct-fit replacement parts for routine cooling system service, making this part a practical choice for Mazda CX-5, Mazda CX-9, and other listed applications.

This part cross-references PY8W15010 and 145-2570 for the same application.

What It Helps Address

• Coolant circulation problems caused by a worn pump
• Coolant leaks from the pump housing or seal area
• Overheating tied to reduced coolant flow
• Noise or bearing wear from a failing water pump assembly
• Cooling system service on Mazda 3, CX-30, CX-5, CX-50, CX-9, and Mazda 6 models

Installation Notes

Verify accessory-belt-driven water pump application before ordering. This pump uses standard impeller rotation and includes a gasket, while the pulley, fan clutch, and thermostat housing are not included. Confirm the vehicle’s year, model, and cooling system configuration against the listed fitment before installation.

Quality Assurance

Gates manufactures this water pump with premium alloy materials and performs functional testing of seals and bearings along with leakage testing of the casting and assembled pump. The result is an OE-quality fit for the listed Mazda applications.

Fits 2022-2025 Mazda 3, N/A. Fits 2022-2025 Mazda 3 Sport, N/A. Fits 2022-2025 Mazda CX-30, N/A. Fits 2019-2025 Mazda CX-5, N/A. Fits 2023-2025 Mazda CX-50, N/A. Fits 2016-2023 Mazda CX-9, N/A. Fits 2019-2021 Mazda 6, N/A.