Spark Plug Index Shims 14mm Small O.D. Spark Plug Washer - Small OD - Indexing - 14 mm Flat Seat - 60 and 90 Degree Shims - ALL-PRO Heads - Set of 24

Spark Plug 14mm Thread Spark Plug - 14 mm Thread - 0.500 in Reach - Gasket Seat - Non-Resistor - Each

Spark Plug Indexer - Hex Head Vise Mount - 14 mm Flat / Tapered Plugs - Aluminum - Black Anodized - Each

Spark Plug Index Tool Spark Plug Indexer - 14 mm Flat / Tapered Plugs - Plastic - Black - Each

SparK Plug - Racing 14mm x 3/4 Reach Spark Plug - 14 mm Thread - 0.750 in Reach - Gasket Seat - Non-Resistor - Each

Spark Plug Index Washers Tapered Seat Spark Plug Washer - Indexing - 14 mm Tapered Seat - 0.010 in / 0.021 in / 0.032 in Thick - Set of 30