YOU GET 4 RN6 RN-6 CHAMPION SPARK PLUGS CROSS REFERENCES TO CHAMPION RN5C BOSCH 7504 DENSO W20ESR-U SPLITFIRE SF40D 4 PC LOT NEW OLD STOCK 14mm Thread Size, 19mm (3/4") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Resistor, Copper Core, Heat Range 5 *Available to sell smaller quantities upon request. Inquire with the number of units needed. I USUALLY HAVE MORE STOCK OF ALL MY ITEMS AND CAN SAVE YOU MONEY IF YOU ARE INTERESTED IN LARGER QUANTITY PURCHASES Other countries must contact me for a postage quote. Please look at my other items in my STORE and add me to your favorites list. Click on See all Categories for additional products. PLEASE SEND ONAN PART NUMBERS OR MODEL AND SPEC. NUMBERS WHEN INQUIRING ABOUT OTHER PARTS. .... Cheers, Mike Powered by Turbo Lister The free listing tool. List your items fast and easy and manage your active items.