Spark plug adapter sleeve kit allows 14mm plugs to be used in earlier heads with 18mm spark plug threads. Sold in a quantity of 2.
FITMENT
1936 / 1940 EL 1941 / 1947 FL MEASURMENTS
Inner Thread Depth: 7/8 inchesOuter Thread Depth: 11/16 inchesACCESSORY ITEMS
16-062316-0603
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