champion indust. / agri plugs- boxed – rc78wyp15 champion industrial and agricultural spark plugs are backed by global engineering from federal-mogul. Precious metals, fiss and hot lock designs allow us to provide a plug that withstands today’s high-temperature/high load service environments. manufactured for superior performance and long-lasting durability designed for high compression and aggressive environments compatible with alternative fuels (gases) supports co2 reduction champion industrial 1221 spark plug (carton of 6)