Item # AL295D; Allis Chalmers - B, C, CA, D10, D12, D14, D15 (Early), D17 (To Sn# 75000), G, IB, RC, WC, WD, WF, Crawler: H3 (Plug gap .030"); Autolite - 295; Avery - Avery: BF, BG (Plug gap .030"); Case - S, SC, SC-3, SC-4, SI, SO (Plug gap .025"); Champion - Replacement for: UJ8, J8, J8C; Cockshutt - 550 (using GO198 Hercules engine), Co-Op (with Flathead engines by Duplex Machinery made in Battle Creek, Arthurdale, Shelbyville, St. Paul etc 1937 thru 1950): #2, #3 (Plug gap .025"); JD - 820 2 cylinder, 820 2 cylinder, 80 (with Pony engine), 70, 720, 730 (Diesel with Pony Start), 840 (with Pony engine Plug gap .025"); Massey Ferguson -180, 175, 165, 150, 135 , MF Industrial: 202, 204 (Workbull w/ Perkins Gas), MF Tractor: 255, 265, MF Industrial: 3165 (Plug gap .025"); Minneapolis Moline - R, Z (Plug gap .030"); Oliver -OC-12, OC-3, OC-4, AD, BD, BG, BGS, DD, (Plug gap .025"); 14 mm thread dia - 3/8" reach - 13/16" hex - Medium hot; Sold in set of 4