Historical clue formulations

• Part of an auto engine — 2019-06-26
• Auto part driven by the crankshaft — 2014-12-02
• Alternator driver — 2009-10-24
• Water pump turner — 2008-11-04
• Radiator adjunct — 2004-05-05
• Radiator adjunct — 2003-10-11
• A crankshaft drives it — 2003-04-18