Gates 43548 Engine Water Pump

Gates Water Pump for Subaru Timing Belt Applications

The Gates 43548 engine water pump is built for Subaru timing belt-driven cooling systems that require a reverse-rotation design. It is a direct-fit replacement for a range of Subaru WRX, WRX STI, Impreza, Legacy, Outback, Forester, Baja, and Saab 9-2X applications with interference engines.

Key Features

• Cast aluminum housing for strength and corrosion resistance
• Stamped steel impeller with reverse rotation
• Timing belt driven design for matched engine service
• Pulley included for application-specific fitment
• Outlet quantity: 3
• Includes water pump, metal gasket, L-shaped gasket, and O-ring
• OE-quality fit for Subaru cooling system service

Product Details

Gates Water Pump, Standard line components are built for dependable operation and are tested for seal and bearing function as well as leakage before release. Part number 43548 uses premium alloy construction and is specified for timing belt-driven Subaru engines that call for a reverse-rotation pump. This makes it a practical choice for Subaru WRX STI, Subaru WRX, and other listed models where water pump service is commonly performed during timing belt maintenance.

This part cross-references Beck/Arnley 131-2446 for the same application.

What This Water Pump Helps Address

• Coolant leakage from a worn pump housing or seal
• Overheating caused by reduced coolant circulation
• Bearing noise from a failing water pump assembly
• Timing belt service replacement on interference-engine Subaru applications
• Cooling system maintenance on high-mileage Subaru and Saab 9-2X vehicles

Installation Notes

• Compatible With 2020-2021 Subaru WRX STI, N/A; interference engine application; timing belt driven.
• Compatible With 2013-2018 Subaru WRX STI, N/A; interference engine application; timing belt driven.
• Compatible With 2012-2016 Subaru WRX, N/A; interference engine application; timing belt driven.
• Compatible With 2004-2014 Subaru Impreza, N/A; interference engine application; timing belt driven.
• Compatible With 2005-2009 Subaru Legacy, N/A; interference engine application; timing belt driven.
• Compatible With 2006-2009 Subaru Outback, N/A; interference engine application; timing belt driven.
• Compatible With 2004-2007 Subaru Forester, N/A; interference engine application; timing belt driven.
• Compatible With 2004-2006 Subaru Baja, N/A; interference engine application; timing belt driven.
• Compatible With 2005 Saab 9-2X, N/A; interference engine application; timing belt driven.
• Compatible With 2005 Subaru Outback, N/A; VIN 4th Digit B; interference engine application; timing belt driven.

Verify engine code, VIN details, and timing belt orientation before installation. The reverse-rotation impeller and timing belt drive style must match the original cooling system configuration.

Quality Assurance

Gates manufactures this water pump with 100 percent functional testing of seals and bearings and a 100 percent leakage test for both the casting and assembled unit. The result is a replacement built to OE-quality fit standards for the listed Subaru and Saab applications.