Spark Plug Indexing Washers

$22.49 Package of 30

B&B’s copper spark plug indexing washers allow engine builders to index a plug for the giving cylinder. This provides a performance improvement by posteniiong the spark at the most desirable location for proper flame travel.

These washers come in 3 thicknesses for both tapered seat plugs, .010″, .021″ & .032″.

The Standard Flat Seat Plugs Washers are available in .043″ .054″ & .064″ versions.

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