Tapered Spark Plug Seat Index Washers: 14mm (10 each of .010",.021", & .032")

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