THIS LISTING IS FOR (1) CHAMPION 525 OR 25 SPARK PLUG. IT IS A TAPERED SEAT PLUG WITH A 7/8 HEX HEAD. IT HAS THE 1/2 NPT THREAD WITH A 1 REACH. IT IS A NON-RESISTOR PLUG MADE WITH NICKEL COPPER ALLOY. FITS MANY OLD STATIONARY HIT & MISS ENGINES INCLUDING MAYTAG. THANK YOU FOR LOOKING AND PLEASE VIEW MY OTHER LISTINGS. The item “(1) CHAMPION 525 25 HIT & MISS ENGINE SPARK PLUG HERCULES MAYTAG FAIRBANKS MORSE” is in sale since Saturday, September 01, 2012. This item is in the category “Business & Industrial\Light Equipment & Tools\Stationary Engines\Parts”. The seller is “stephens-race-engines” and is located in Camp Hill, Alabama. This item can be shipped worldwide.