Spark Plug Application Chart (1972-1977)



Serial No. 2551 to 20000
MODEL BRAND PLUG NUMBER
JDX4 AC
Champion
NGK
Bosch
S42XL
N-3, N-3G
B8ES, B8EV
W260T2, W260S2S
400, 500, 600 AC
Champion
NGK
Bosch
S-42F
L-81, L-6G
B8HZ, B6HV
W225T1
JDX8 AC
Champion
NGK
Bosch
S40F
L-78, L-4G
B9HC, B7HV
W280MZ1, W280S2S

Serial No. 20001 to 30000
MODEL BRAND PLUG NUMBER
300 AC
Champion
NGK
Bosch
S42XLR
RN3, RN3G
BR8ES, BR8ESA
W260T2, W260S2S
400, 500, 600
JDX4 Special, JDX6, JDX8
AC
Champion
S42XLR
RN2, N2G*
295/S AC
Champion
NGK
Bosch
SV4XL
N-19V
BR9ES
W280MZ2, W280S2S

Serial No. 30001 and up
MODEL BRAND PLUG NUMBER
300 AC
Champion
NGK
Bosch
S42XLR
RN3
BR8ES, BR8ESA
W260T2, W260S2S
400, 500, 600
JDX4, JDX6
AC
Champion
NGK
Bosch
S42XLR
RN2, N2G
BR9ES
W280MZ2, W280S2S
800, JDX8 AC
Champion
NGK
Bosch
S41XLR
RN2, N2G*
BR9ES
W280MZ2, W280S2S
Cyclone, Liquifire, Liquidator Champion
NGK
Bosch
QN-19V
BUE, BUEW
WET2
JD340/S Champion
NGK
Bosch
N-19V
BUE, BUEW
WET2

*For continuous high-speed operation or high performance on 800 and JDX8 models, substitute Champion N59G or NGK B9EV for Champion N2G.

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