⚠️ Fitment note: The Make/Model filter is for guidance only. Please verify model / year / engine size in the product description before purchase. The product description is the definitive fitment reference. If you’re unsure, message us and we’ll confirm fitment. 21mm Universal Spark Plug Spanner is designed for use with 14mm thread spark plugs on both air-cooled and water-cooled engines. Made from durable carbon steel with a silver zinc finish, it ensures reliability and longevity. Features Classic-style spanner for versatile use Compatible with air-cooled and water-cooled engines Made from carbon steel for durability Silver zinc finish for corrosion resistance Specifications Size: 21mm Compatible Thread: 14mm Material: Carbon steel Finish: Silver zinc 21mm Universal Spark Plug Spanner is designed for use with 14mm thread spark plugs on both air-cooled and water-cooled engines. Made from durable carbon steel with a silver zinc finish, it ensures reliability and longevity. Features Classic-style spanner for versatile use Compatible with air-cooled and water-cooled engines Made from carbon steel for durability Silver zinc finish for corrosion resistance Specifications Size: 21mm Compatible Thread: 14mm Material: Carbon steel Finish: Silver zinc