Spark Plug Indexing Washers Flat Seat, .040", .050", .064"
30 per pack, 10 each size
Designed for use on all 14mm spark plugs with 5/8" hex
With three thicknesses in each package, one will correct the electrode placement on any plug and simplify the time-consuming task of spark plug indexing
The washers are precision stamped from copper for perfect sealing and heat transfer