CHAMPION, COPPER PLUS SPARK PLUG. RN12YC
4-pack. (5R6A). 14mm threaded, 3/4" (19mm) long reach. Use with a 21mm spark plug socket. Copper-core center electrode with the patented SAC-9 semiconductor resistor. Spark plug comes with the patented Ultraseal™ coated shell, to help keep the spark plug body corrosion free and better looking for a longer period of time.
Fits: > L79-80 B.T. (NU)
mcs nr 931604