Lisle 12320 3/8" dr Fuel Line Socket Wrenches for Cummins ISX / ISB 19mm & 22mm

Designed to Replace Fuel Line Fittings on Cummins ISB and ISX engines.

The sockets reduce the possibility of fuel leaks and prevent damage to fitting, fuel rail, and fuel line. The 22mm is used on the newest ISX Cummins motors and the 19mm is found on 2011 and older diesel engines. Use with 3/8" square drive.