18mm Hex Size Spark Plug T-Wrench – Ultra Thin Wall Design

Description

Fits NGK “D” (NOT “DC”) AND “X” series plugs w/ 12mm threads and 18mm hex size (see NGK SKU decoder chart). Will fit other 18mm hex plugs provided insulator is less than 12mm diameter and 40mm in height.

4″ Long with thin wall allows access to deeply recessed plugs on many Motorcycles and ATVs like Honda XR400 or TRX400EX.
84-04110 made by Emgo