Gates 42237 Engine Water Pump

Gates Water Pump for Toyota and Geo Applications

The Gates 42237 engine water pump is built for dependable cooling-system service on select Toyota, Geo, and Chevrolet applications. It uses a cast aluminum housing and a stamped steel impeller with standard rotation, and it includes a gasket for installation.

Gates Water Pump (Standard) components are manufactured for OE-quality fit and are individually tested for seal and bearing function as well as leakage before release.

Key Features

• Cast aluminum housing for durable cooling-system construction
• Stamped steel impeller with standard rotation
• Accessory belt drive style
• Water pump and gasket included
• No back housing, thermostat housing, fan clutch, or pulley included
• Not timing belt driven

Detailed Description

The Gates 42237 is a standard engine water pump for vehicles that use an accessory belt drive. It is engineered with premium alloy materials and built to match OE-style fitment requirements for service replacement. This part cross-references Airtex AW9076 and GMB 170-1630 for the same application. Common search terms for this part include Toyota Corolla water pump replacement, Geo Prizm engine water pump, and Chevrolet Nova cooling system repair.

Compatible With 1990-1992 Geo Prizm, N/A; 1987-1991 Toyota Corolla, N/A; 1985-1989 Toyota MR2, N/A; and 1988 Chevrolet Nova, N/A. The Gates 42237 is also a relevant search match for Toyota Corolla and MR2 water pump replacement service where the original setup uses an accessory belt-driven pump.

Common Problems This Part Can Address

• Coolant leakage from a worn pump seal or casting surface
• Noise from failing pump bearings
• Reduced coolant circulation through the engine
• Overheating caused by an inefficient water pump
• Service replacement for a damaged or corroded original pump

Installation Notes and Tips

Verify accessory belt routing before installation and confirm the pump matches the original standard-rotation configuration. Inspect the mating surface carefully, replace the gasket supplied with the pump, and check the cooling system for contamination or belt wear before returning the vehicle to service. Confirm fitment by year, make, model, and engine configuration before ordering.

Quality Assurance

Gates tests each new water pump for seal and bearing function and performs leakage testing on both the casting and assembled unit. The result is a replacement water pump built for consistent operation and OE-quality fit on the listed applications.