Yeah, they are no different than if you had bought a new briggs engine, the new briggs engines have their logo on the plugs sometimes that come from the factory that are made by champion(or whomever) for briggs with their logo, and not just the standard champion logo. Physically the plus are no different than a standard champion plug, just different branding/ink. I can only assume its (or was) no different for Tecumseh when they were still in buisness...most likely anyway