Mr Heater Buddy OEM Replacemnet Pilot kit for Part number F278527 OEM Enerco Mr Heater replacement component. The F278527 replacement pilot assembly from Enerco fits the following models:

Mr. Heater Models:
MH12HB Buddy Heater
MH18B Big Buddy Portable Heater
F274806 Big Buddy Portable Propane Heaters
F274800 Big Buddy Portable Propane Heaters
F274805 Big Buddy Portable Propane Heaters
The F278527 replacement pilot assembly from fits the following Enerco model with the Stanley Black and Decker models:* * * Heater Models:* * *DXH12B Cordless Propane Heater Product ID #: 304871252* * * F332000 DeWalt Propane Heater Internet #: 089301003361 The F278527 Pilot ODS Assembly is the newest version replacement Buddy and Big Buddy pilot assembly with thermocouple wires for the Buddy-style portable propane heaters.
This OEM pilot assembly with thermocouple wires has a 10 Inch wire that is connected with a 3/16 female spade connector to one side of the tip switch and then a 7 Inch that is connected with a 3/16 female spade connected to the other side of the tip switch.

This F278527 Pilot Assembly is also the same as the part number 78422 but does not come in the blister package.
The 78422 replacement pilot assembly from Enerco fits the following models:

Enerco Models:
MH12HB Buddy Heater
MH18B Big Buddy Portable Heater
F274806 Big Buddy Portable Propane Heaters
F274800 Big Buddy Portable Propane Heaters
F274805 Big Buddy Portable Propane Heaters
DXH12B Cordless Propane Heater Product ID #: 304871252
F332000 DXH12B Propane Heater Internet #: 089301003361