F221857 Electrode Spark Plug Kit is a replacement electrode for Mr. Heater and HeatStar brand 50,000 BTU - 210,000 BTU kerosene forced air heaters for models manufactured in 2005 and later.

The F221857 Electrode Spark Plug Kit was used on all Mr Heater and HeatStar kerosene and diesel fired heaters produced after 2005.

This F221857 Spark Plug Electrode kit will fit the following Models:

MH50K MH75KT MH125KT MH175KT MH210KT
Year 2005-2006
Serial Numbers: 0149000 thru 0215151

MH50K MH75KT MH125KT MH175KT MH210KT
Year 2006-2007
Serial Numbers: 0215152 thru 0253699

MH50K MH75KT MH125KT MH175KT MH210KT
Year 2007-2008
Serial Numbers: 0253700 thru 0296656

MH50KT
Year 2008-2009
Serial Numbers: 270250-08001001 to 08005152

MH75KT
Year 2008-2009
Serial Numbers: 270275-08001001 to 08005496

MH125KT
Year 2008-2009
Serial Numbers: 270325-08001001 to 08005385

MH175KT
Year 2008-2009
Serial Numbers: 270375-08001001 to 08004605

MH210KT
Year 2008-2009
Serial Numbers: 270380-08001001 to 08002005

MH50KTR
Year 2009-2010
Serial Numbers: 270255 thru 09001001

MH75KTR
Year 2009-2010
Serial Numbers: 270270 thru 09001001

MH125KTR
Year 2009-2010
Serial Numbers: 270320 thru 09001001

MH175KTR
Year 2009-2010
Serial Numbers: 270370 thru 09001001

MH210KTR
Year 2009-2010
Serial Numbers: 270385 thru 09001001

MH50KTR
Year 2010-2011
Serial Numbers:LN-2702550001001

MH75KTR
Year 2010-2011
Serial Numbers: LN-2702550001001

MH125KTR
Year 2010-2011
Serial Numbers: LN-2703200001001

MH175KTR
Year 2010-2011
Serial Numbers: LN-2703700001001

MH210KTR
Year 2010-2011
Serial Numbers: LN-2703850001001

MH50KTR
Year 2011-2012
Serial Numbers: LN-270255 thru 11001001

MH75KTR
Year 2011-2012
Serial Numbers: LN-270255 thru 11001001

MH125KTR
Year 2011-2012
Serial Numbers: LN-270320 thru 11001001

MH175KTR
Year 2011-2012
Serial Numbers: LN-270370 thru 11001001

MH210KTR
Year 2011-2012
Serial Numbers: LN-270385 thru 11001001

SAME DAY SHIPPING ON ORDERS PLACE BEFORE 2:00PM EASTERN TIME