John Deere Spark Plug Chart

 Year/s Model Original (champion) NGK Cross Ref
1972-73 400/500/60 L81 B7HS
1973 JDX4 N2 B9ES
1973 JDX8 L78 B7HS or B8HS
1974 300 RN3 BR8ES
1974 400/500/600 RN2 BR9ES
1974 JDX4S/JDX6/JDX8 RN2 BR9ES
1974 295/S N19-V BUE
1975 300 RN3 BR8ES
1975 400/600/800/JDX's RN2 BR9ES
1975 340/S N19-V BUE
1976 300 QN3 BR9ES
1976 400/Cyclone/Liquiufire  N1 BR10ES
1976  Liquidator N19-V BUE
1977 300 QN3 BR8ES
1977 Cyclone/Liquifire N1 BR10ES
1978 Cyclone/Liquifire QN1 BR10ES
1978-79 Spitfire QN3 BR8ES
1979-84 Trailfire 440/340 N3 BR8ES
1980-84 Liquifire 440 N2 BR9ES
1980-84 Sportfire 440 N2 BR9ES
1980-82 Spitfire 340 N3 BR8ES
1982-84 Snowfire 340 N3 BR8ES
1982-84 Sprintfire 340 N3 BR8ES