Flat Spark Plug Seat Index Washers: 14mm (10 each of .043",.054",and .064")

These washers are used by many racers to properly index their spark plugs in the combustion chamber for piston dome clearance or for added power.

• Come 30 to a pack, 10 of each different thicknesses

• Available for 14mm fl at seat or 14mm taper seat plugs

• These washers are a great addition to our indexer kit