Diagram reference number 5 in the image below:
" Fitment: 1990 TOYOTA CELICA ST - 2 door

Application Notes:

Category: Brake

SubCategory: Brake Hardware

Position: Front Left

Part Number: 4775020370


This is a Disc Brake Caliper that fits the 1990 TOYOTA CELICA ST - 2 door with the 4AFE engine. The Disc Brake Caliper is designed by TOYOTA to be part of the Brake-Brake Hardware. The Disc Brake Caliper has a position on the vehicle of Front Left. The 1990 TOYOTA CELICA Disc Brake Caliper 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 CELICA Disc Brake Caliper! Buy a factory TOYOTA part and receive peace of mind!
This factory part has a part number of 4775020370.