UCA43800 Spark Plug ---Autolite 3116

18 mm thread---1/2" reach---7/8" hex

Fits: V, VA, VAC, VAH, VAI, VAO, VAS, VC, VO, D, DC, L
LA, 200, 300, 320, 350, 400, 500, 600, 700, 800, 900, 430, 440
470, 480, 530, 540, 570, 580, 630, 730, 770, 830, 870, 930, 970