Vtg Antique REX Primer Spark Plug. Hit Miss Gas Engine Tractor Boat Motor Priming. Here is an old barn fresh REX Primer Spark Plug. I have included many photos to show its condition. The primer valve works as it should. I checked the plug with an old magneto. It still throws a nice spark. It will make a nice addition to your collection. Please call if you need additional information. Package will be insured upon request. Most items are packaged with new bubble wrap and new packing peanuts. Sometimes prices are inflated due to the weight of the item. I require all international packages to be insured. Be sure to check out my other auctions and store PLUDGEWORKS. _gsrx_vers_586 GS 6.8 (586). Sellers: Get your own map today. The item “Vtg Antique REX Primer Spark Plug Hit Miss Gas Engine Tractor Boat Motor Priming” is in sale since Saturday, April 09, 2016. This item is in the category “Collectibles\Transportation\Automobilia\Spark Plugs”. The seller is “pludge” and is located in Carleton, Michigan. This item can be shipped worldwide.