NGK or Champion

V

Vahevala

Seaman Apprentice
Joined
Mar 5, 2003
Messages
43
My 80-81 Mercury 7.5 manual lists a Champion L77J4<br />I've been told to use NGK B9HS-10. :confused: Are these the same plugs and if soo which one should I use. :confused: Is the BR9HS-10 the same as the B9HS-10. Or is the BR9HS-10 the resistor plug. :confused: Any info would be muchly appreciated :) <br /><br />Shawn :cool:
 
Z

zzzzz

Lieutenant Junior Grade
Joined
Jan 13, 2003
Messages
1,094
Re: NGK or Champion

the merc parts catalog specs out NGK on newer mercs and champions on the older.any NGK with the R in the number is a resistor plug :)
 
O

ob

Admiral
Joined
Aug 16, 2002
Messages
6,992
Re: NGK or Champion

Vahevala,According to my search your engine takes the NGK B9HS-10 plug.The BR9HS-10 is the same heat range plug but, is a resistor plug.Either will work.
 
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