20 Prestolite spark plugs . # 14F7N. 14 mm threads with tapered seat.
Replaces Champion D-J8J, Bosch HS8E, NGK BM6F
Used on many brands including-----

McCULLOCH----Chainsaw models---Mini Mac Series, Mac 10 Series, 1-10,2-10, 1010 series,
WILDCAT series, Power Mac series. Also many trimmers and leaf blowers.

HOMELITE-----Chainsaw models----XL, XL2, SUPER 2, 150, 330, 350, 360, 410, 240, 245, 250,
                                                     DM 40, Also many of the trimmers and leaf blowers.