Fits most Briggs and Stratton, Tecumseh side valve engines, equivalent to champion J19, NGK B2LM
21mm (13/16 inch) hexigon
3/8 inch reach
Fits most Briggs and Stratton, Tecumseh side valve engines, equivalent to champion J19, NGK B2LM
21mm (13/16 inch) hexigon
3/8 inch reach
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