Webjun 13, 2021 · i have an application that calls for champion h10 spark plugs. Are h10c's just the new listing with copper? Webreplacement spark plugs for autolite 216+. Huge cross reference with up to 112 different brands. Webfind the right autolite copper core spark plug for your vehicle at o'reilly auto parts. Place your order online and pick it up at your local store for free. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration. Copper core center electrode for higher thermal conductivity. Cross reference spark plug…