QuadBoss thermostats are a direct OE replacement that meets or exceeds factory specs. Installs and operates exactly like the factory unit.
Product Note:
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Polaris
455 Diesel 4x4 1999-2001
ACE 325 2014-2016
ACE 325 HD 2015
ACE 570 2015-2018
ATP 500 4x4 2004-2005
General 1000 2016-2019
General 1000 Deluxe 2019-2020
General 4 1000 2017-2020
General XP 1000 2020
Hawkeye 325 2x4 2015
Hawkeye 400 H.O. 2x4 2011-2013
Magnum 500 2x4 2002
RZR 4 800 2010-2011
RZR 570 2012-2019
RZR 800 2008-2014
RZR 900 2014-2019
RZR Pro XP 2020
RZR Pro XP 4 2020
RZR RS1 2018-2020
RZR S 800 2009-2010
RZR S4 1000 2019-2020
RZR XP 1000 2014-2020
RZR XP 4 1000 2016-2020
RZR XP 4 900 2012-2014
RZR XP 4 900 Jagged X 2013
RZR XP 4 Turbo 2016-2020
RZR XP 4 Turbo S 2019-2020
RZR XP 900 2011-2013
RZR XP Turbo 2016-2020
RZR XP Turbo S 2018-2020
Ranger 500 2x4 2004-2009
Ranger 570 2014-2019
Ranger 700 4x4 2006-2009
Ranger 700 6x6 2007-2009
Ranger 800 2010-2011, 2013-2014
Ranger 800 6x6 2010
Ranger Crew 700 2008-2009
Ranger Crew 800 2010
Ranger ETX 2015-2016
Ranger XP 1000 2017-2019
Ranger XP 900 2013-2019
Scrambler 500 2x4 2001-2002, 2007-2009
Sportsman 400 2001-2005, 2011-2014
Sportsman 450 2006-2007, 2016-2019
Sportsman 500 4x4 1996-2006
Sportsman 550 2010-2014
Sportsman 550 Forest Tractor 2011-2013
Sportsman 570 2014-2019
Sportsman 600 2003-2005
Sportsman 700 2002-2006
Sportsman 700 EFI 2005-2007
Sportsman 800 Big Boss 6x6 2009-2014
Sportsman 800 EFI 2005-2014
Sportsman 800 Forest Tractor 2012-2013
Sportsman 800 Forest Tractor 6x6 2013-2015
Sportsman ETX 2015
Sportsman MV 700 2005
Sportsman Touring 550 2010-2014
Sportsman Touring 800 EFI 2008-2009
Sportsman X2 550 2010-2014
Sportsman X2 700 2008
Sportsman X2 800 2007-2009
Sportsman XP 550 2009-2010
Worker 500 1999-2001
Xpedition 425 2000-2002
Xplorer 500 1997
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