Answer: sparkplugs

AnswerCrossword Clue
SPARKPLUGSGarage supply
SPARKPLUGSAuto necessities
SPARKPLUGSV-8's octet
SPARKPLUGSInspirational leaders
SPARKPLUGSMainsprings.
SPARKPLUGSEngine parts.
sparkplugsSPARKPLUG, to spark something off, in the manner of a sparkplug in a car carrying wires between which an electric spark passes to fire the explosive mixture of gases