Definition of overhauler in US English:

overhauler

noun

  • A person who overhauls; a company, etc., in the business of overhauling.

Origin

Mid 19th century; earliest use found in Charles Tomlinson (1808–1897), science teacher and writer. From overhaul + -er.

Pronunciation

overhauler

/ˈəʊvəˌhɔːlə/