1973 Corvette Fan Belts Big Block 1973 Corvette Belts (Big Block) Year Description GM # Quanta # Choose Date Code for Belt 1973 Generator, 454, w/o PS 326093 B-220 3Q72 4Q72 1Q73 2Q73 1973 Generator, 454, w/ PS 326092 B-221 3Q72 4Q72 1Q73 2Q73 1973 Water Pump, 454 3952336 B-223 3Q72 4Q72 1Q73 2Q73 1973 Power Steering, 454 326084 B-213 3Q72 4Q72 1Q73 2Q73 1973 A.I.R. Pump, 454, w/o AC 9433611 B-226 3Q72 4Q72 1Q73 2Q73 1973 Air Conditioning / A.I.R. Pump, 454 3921905 B-227 3Q72 4Q72 1Q73 2Q73