Champion RA8HC Spark Plug 810 The 810 Spark Plug provides increased conductivity and heat control for goof overall wear by its star feature copper core electrode. The 810 is known for its dependable performance and durability. The spark plug provides superior corrosion resistance and resists fouling. Interchangeable with Mercury 883323001 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Engine Parts Product MPN RA8HC Product UPC 037