NGK STK 3994 - Possible spark plugs for

Alternative spark plugs for NGK STK 3994:

Brand Model
Autolite 4251
Denso W24EP-U
Denso stk 4028
NGK BP8ES SOLID

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SPARK PLUG CONVERTER

The Spark Plug Cross references are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.
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