Spark Plugs

Spark plugs for the listed applications.

Part Number: AL303D

Fits

• Allis Chalmers - B, C, CA, D10, D12, D14, D15 (Early), D17 (To Sn# 75000), G, IB, RC, WC, WD, WF
• Allis Chalmers Crawler - H3
• Avery - BF, BG
• Case - S, SC, SC-3, SC-4, SI, SO
• Cockshutt - F550 (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
• John Deere - 820 2 cylinder, 80 (with Pony engine), 70, 720, 730 (Diesel with Pony Start), 840 (with Pony engine)
• Massey Ferguson - MF Tractor: 135, 150, 165, 175, 180, MF Industrial: 202 (Workbull with Perkins Gas), 204 (Workbull w/ Perkins Gas), MF Tractor: 255, 265, MF Industrial: 3165
• Minneapolis Moline - R, Z
• Oliver - AD, BD, BG, BGS, DD, OC-12, OC-3, OC-4

Replaces / Cross Reference

• Autolite 303
• Champion UJ8
• Champion J8
• Champion J8C
• ABC168B

Specs

• Set of 4
• 14 mm thread dia
• 3/8" reach
• 13/16" hex
• Medium hot
• Hotter range than AB-168D
• AL295

Notes

• Check before ordering.
• Some models may use more than one type.
• Plug gap .030" for Allis Chalmers B, C, CA, D10, D12, D14, D15 (Early), D17 (To Sn# 75000), G, IB, RC, WC, WD, WF and Minneapolis Moline R, Z.
• Plug gap .030" for Allis Chalmers Crawler H3.
• Plug gap .025" for Case S, SC, SC-3, SC-4, SI, SO; John Deere 820 2 cylinder, 80 (with Pony engine), 70, 720, 730 (Diesel with Pony Start), 840 (with Pony engine); Massey Ferguson 135, 150, 165, 175, 180, 202 (Workbull with Perkins Gas), 204 (Workbull w/ Perkins Gas), 255, 265, 3165; and Oliver AD, BD, BG, BGS, DD, OC-12, OC-3, OC-4.
• Plug gap .025" for Cockshutt F550 and Co-Op #2, #3.