JEGS Spark Plug Indexer
Contemporary, high compression race engines require ''indexing'' of spark plugs. This operation prevents contact between piston dome and the ground wire of spark plugs. This ''indexer'' enables selection of spark plugs that will not make such contact. Designed for both flat and taper-seat 14mm spark plugs. .
JEGS Performance Products 14mm Spark Plug Indexer Made in the USA
14mm Spark Plug Indexer