Spark Plug Index Shims 14mm Spark Plug Washer - Indexing - 14 mm Flat Seat - 60 and 90 Degree Shims - Set of 24

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

Spark Plug - Double Platinum - 14 mm Thread - 1 in Reach - Gasket Seat - Resistor - Each

871 Spark Plug Spark Plug - Champion Copper Plus Small - 14 mm Thread - 0.375 in Reach - Gasket Seat - Resistor - Each