Spark Plug Adapter 18 mm to 14 mm (set of 3) – AT-SPEED
Spark Plug Adapter 18 mm to 14 mm (set of 3) – AT-SPEED
Spark Plug Adapter Bushing
JEGS W80577: Compression Tester Spark Plug Hole Adapters | Set of 4 | 10 mm x 1.0 | 12 mm x 1.25 | 18 mm x 1.5 | Special 16 mm x 1.5 Ford adapter - JEGS
Brief Shipping Info | Complete Automobilist
Tam's Model A Parts. A12405ADP ~ Spark Plug Adapter
Amazon.com: V-Twin Manufacturing Spark Plug Adapter Set 32-0057 : Automotive
Spark Plug Air Hose Adapter, 14, 18 mm Thread, 12 in Rubber Hose, Kit