DURAMAX WATER IN FUEL SENSOR WRENCH MST1310 | eBaydiy Tools

Two tools in one: one end is designed to fit the odd shaped 40mm 12 sided sensor found on 2001 to 2010 trucks; the other end fits the 42mm 6 sided sensor on 2011 to current trucks
Used every time a fuel filter is replaced due to the plastic sensor that can easily be damaged by using pliers and other nonspecific designed tools