What is the fan belt?by caacarOctober 27, 2019 1. Fan belt A belt driven by the crankshaft, its main purpose is to drive the engine fan and pump. Tags:Professional nounsproper nouns Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment. Δ