Thread: 18 to 14mm Spark Plug Adapter.
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Old 08-11-2019, 07:32 PM   #1
frnkeore
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Default 18 to 14mm Spark Plug Adapter.
Where can I get adapters for my aluminum 18mm heads, to use 14mm plugs, either 3/8 or 3/4" reach?

Frank
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