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Tohatsu

Tohatsu spark plug

Tohatsu Outboard NGK Spark Plug Guide

NGK spark plugs are original equipment on many outboard motors and are excellent replacements for everyday engine maintenance. Please view the application guide below. You may also find the NGK spark plug code helpful.

Model Type Capacity Year Cylinder Engine Gap Standard Resistor [?]
2.5 M2.5A         0.6mm (.024") BP6HS BPR6HS
3.5 M3.5A   1985-     0.7mm (.028") B7HS BR7HS
3.5 M3.5A   1986-     0.6mm (.024") BP6HS BPR6HS
5 M5A2 S         0.7mm (.028") B7HS BR7HS
5 M5B S         0.7mm (.028") BP7HS  
8 M8A         0.7mm (.028") B7HS BR7HS
9.8 M9.8A         0.7mm (.028") B7HS BR7HS
9.9 M9.9A         0.7mm (.028") B7HS BR7HS
9.9 M9.9B         1.0mm (.040") B7HS-10 BR7HS-10
12 M12A         0.7mm (.028") B7HS BR7HS
12 M12B         0.7mm (.028") B7HS BR7HS
12 M12C         1.0mm (.040") B7HS-10 BR7HS-10
15 M15A         0.7mm (.028") B7HS BR7HS
15 M15B         1.0mm (.040") B7HS-10 BR7HS-10
16 M16A2         0.7mm (.028") B7HS BR7HS
18 M18A         0.7mm (.028") B7HS BR7HS
18 M18C   1982-1986     1.0mm (.040") B7HS-10 BR7HS-10
20 M20A2         0.7mm (.028") B7HS BR7HS
25 M25A2         0.7mm (.028") B7HS BR7HS
25 M25B   1984-     0.7mm (.028") B7HS BR7HS
25 M25B   1985-     1.0mm (.040") B7HS-10 BR7HS-10
25 M25C   1984-1986     1.0mm (.040") B7HS-10 BR7HS-10
25 M25C2   1986-2006     1.0mm (.040") B7HS-10 BR7HS-10
25 MSF25A   2004-2006   4-Stroke 0.7mm (.028") DCPR6E  
30 M30A   1985-     0.7mm (.028") B7HS BR7HS
30 M30A   1986-     1.0mm (.040") B7HS-10 BR7HS-10
30 M30A2   1984-     0.7mm (.028") B7HS BR7HS
30 M30A2   1985-     1.0mm (.040") B7HS-10 BR7HS-10
30 M30A3   2004-2006     1.0mm (.040") B7HS-10 BR7HS-10
30 MSF30A   2004-2006   4-Stroke 0.7mm (.028") DCPR6E  
35 M35B         0.7mm (.028") BP7HS  
40 M40C   1983-2006     1.0mm (.040") B7HS-10 BR7HS-10
40 M40C   1984-     0.7mm (.028") BP7HS  
40 M40C   1985-     1.0mm (.040") B7HS-10 BR7HS-10
40 MD40ATLDI   2004-2006     1.1mm (.044") ZFR6F-11  
40 MD40BTLDI   2004-2006     0.8mm (.032") PZFR6H  
50 M50C   2004-2006     1.0mm (.040") B8HS-10 BR8HS-10
50 MD50ATLDI   2004-2006     1.1mm (.044") ZFR6F-11  
50 MD50BTLDI   2004-2006     0.8mm (.032") PZFR6H  
55 M55A         1.0mm (.040") B8HS-10 BR8HS-10
55 M55B   2004-2006     1.0mm (.040") B8HS-10 BR8HS-10
55 M55B         1.0mm (.040") B8HS-10 BR8HS-10
60 M60A   2004-2006     1.0mm (.040") B8HS-10 BR8HS-10
60 M60B   1992-2006     1.0mm (.040") B8HS-10 BR8HS-10
70 M70A   2004-2006     1.0mm (.040") B8HS-10 BR8HS-10
70 M70A         1.0mm (.040") B8HS-10 BR8HS-10
70 MD70ATLDI   2004-2006     1.1mm (.044") ZFR6F-11  
70 MD70BTLDI   2004-2006     0.8mm (.032") PZFR6H  
90 M90A   1997-2006     1.0mm (.040") BR8HS-10  
90 MD90ATLDI   2004-2006     1.1mm (.044") ZFR6F-11  
90 MD90BTLDI   2004-2006     0.8mm (.032") PZFR6H  
115 M115A   2004-2006     1.0mm (.040") B8HS-10 BR8HS-10
120 M120A   2004-2006     1.0mm (.040") B8HS-10 BR8HS-10
140 M140A   1997-2006     1.0mm (.040") BR8HS-10