Diagram reference number 8 in the image below:
" Fitment: 1998 TOYOTA COROLLA - 4 door

Application Notes:

Category: HVAC

SubCategory: A/C Clutch and Compressor

Position: General

Part Number: 8840306060


This is a A/C Compressor Clutch Hub that fits the 1998 TOYOTA COROLLA - 4 door with the 1ZZFE engine. The A/C Compressor Clutch Hub is designed by TOYOTA to be part of the HVAC-A/C Clutch and Compressor. The A/C Compressor Clutch Hub has a position on the vehicle of General. The 1998 TOYOTA COROLLA A/C Compressor Clutch Hub is a factory made TOYOTA OEM part and it comes with a 12 month 12,000 mile warranty (parts only). Do not be fooled by an aftermarket TOYOTA COROLLA A/C Compressor Clutch Hub! Buy a factory TOYOTA part and receive peace of mind!
This factory part has a part number of 8840306060.