Part numbers: 78422 ,F278527, F273401, 73404.
For Mr.Heater, Heat Star and Enerco MH9B & MH9BX MH18B Buddy Heaters.
Fits Mr Heater: MH9B(2001-2008), MH9BX (2009-current),Heat Star and Enerco MH18B Buddy Heaters.
Pilot Assembly Compatible Dewalt Small Propane Heater.
For Portable ODS Mr.Heater Big Buddy MH18B MH9B MH9BX and Dewalt Small Propane Heater Parts.
The wire insulation on the replacement part.Be careful to Route it so it is not touching any metal pieces.