Gates 42330 Engine Water Pump

Engine Water Pump for Toyota Timing Belt Applications

The Gates 42330 engine water pump is built for Toyota timing belt driven cooling systems that require a standard rotation pump with OE-style fitment. It is a direct replacement for select Toyota MR2 and Celica applications, including 1991-1995 Toyota MR2 and 1990-1993 Toyota Celica models.

Key Features

• Cast aluminum housing for strength and corrosion resistance
• Cast iron impeller for consistent coolant movement
• Standard impeller rotation
• Timing belt driven design
• Pulley included
• Includes water pump, gasket, and 2 O-rings
• No back housing included
• No thermostat or housing included
• No fan clutch included

Gates Water Pump Standard Line

Gates Water Pump (Standard) products focus on OE-quality replacement fit and dependable operation for everyday service work. Part number 42330 is manufactured with premium alloy materials and tested for seal and bearing function as well as leakage integrity before release. For Toyota MR2 and Toyota Celica timing belt service, this water pump supports a clean replacement path when the cooling system is being serviced alongside the belt drive.

This part cross-references Airtex AW9140 and GMB 170-2107 for the same application.

Vehicle Fitment

• Fits 1991-1995 Toyota MR2, N/A; Timing Belt Driven; Water Pump (Standard)
• Fits 1990-1993 Toyota Celica, N/A; Timing Belt Driven; Water Pump (Standard)
• Fits 1986 Toyota Celica, N/A; Timing Belt Driven; Water Pump (Standard)

Common Repair Uses

• Coolant leaks from a worn pump seal or casting
• Noise from failing pump bearings
• Overheating caused by reduced coolant circulation
• Timing belt service that includes water pump replacement
• Cooling system maintenance on Toyota MR2 and Celica models

Installation Notes and Quality Assurance

Verify timing belt driven application, impeller rotation, and pulley alignment before installation. Replace the gasket and O-rings during service, and inspect adjacent cooling system components for wear or leakage. Gates tests each new pump for seal and bearing function and performs leakage checks on both the casting and assembled unit to support consistent operation.