fan belt

English Thesaurus

1. a belt driven by the crankshaft that drives a fan that pulls air through the radiator (noun.artifact)

hypernym	:	belt,
definition	:	endless loop of flexible material between two rotating shafts or pulleys (noun.artifact)

part meronym	:	cooling system, engine cooling system,
definition	:	equipment in a motor vehicle that cools the engine (noun.artifact)