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

Spark Plug - Revolution HT - 16 mm Thread - 1 in Reach - Tapered Seat - Resistor - Each

Racing Spark Plug Spark Plug - Racing - 14 mm Thread - 0.750 in Reach - Gasket Seat - Non-Resistor - Each