Champion Spark Plug RA8HC #810 #810C Card Replaces: D6EA Brand Champion Purchase is for one spark plug. Keep the engines in your outdoor power equipment operating with the Champion Spark Plug for Motorcycles, Mopeds, Mowers, Chain Saws, Pumps and Trimmers. The spark plug comes equipped with a resistor and has a 12 mm thread. Conventional Spark Plug with Nickel Alloy Electrodes. Copper Core Center Electrode Allows for Increased Conductivity and Heat Control. Champion copper plus small engine plugs resist fouling and provide superior corrosion resistance For use with chain saws, lawn mowers, pumps and trimmers Works with most small-engine brands and models Thread: 0.472" (12 mm), Reach: 0.75" (19 mm) and Hex size: 5/8" (16 mm) Equipped with a resistor Seat type: Gasket Taper diameter: 0.2" Installed height: 1.99" Gap: 0.022-0.028" (0.56-0.71 mm) Center and Ground Electrode Material: Nickel Copper Alloy Classification: Champion Copper Plus Small Engine MPN: 810C UPC: 037551011926 USA domestic shipments are shipped USPS First Class Mail with Tracking International shipments are shipped USPS First Class International Mail with Tracking