Up for auction is a 7/8” thread, used, Green Hex SPLITDORF spark plug with a PRIMER CUP attached. This style of plug DID NOT come with a primer cup. To my knowledge all Splitdorf plugs that were primers originally had an extension crudely welded to the side of body to accept the cup. Although this is functioning properly, not an original piece.

*This type of plug with a petcock screwed into the base would serve as a way to introduce gasoline into the combustion chamber to help start vehicles on cold days and also provide a temporary “compression release” when either cranking over a hand cranked vehicle i.e. (Ford Model T) or a kick start on an old motorcycle.

 **Please note that I always combine shipping costs on multiple items won. Please do not pay invoice until I adjust to the appropriate cost. Thanks for your bidding.**