QuadBoss 403168 Thermostat for Polaris ATP/Big Boss/Diesel/Magnum/Ranger/RZR/Scrambler/Sportsman

QuadBoss® Thermostats are a direct O.E. replacement that meets or exceeds factory specs. Installs and operates exactly like the factory unit.

• Helps maintain optimal engine operating temperature
• Precision engineered for consistent coolant flow
• OEM style replacement for reliable performance

The QuadBoss 403168 thermostat is a direct OE replacement designed to install and operate like the factory unit. It helps maintain optimal engine operating temperature and is precision engineered for consistent coolant flow and reliable performance.

This thermostat fits select Polaris powersports applications, including the 1999 and 2001 Polaris Worker 500; 2000–2002 Polaris Xpedition 425; 2004–2005 Polaris ATP 500; 2006–2007 Polaris Sportsman 450; and 2011 Polaris Sportsman 400 HO. Verify the vehicle application before ordering.

Manufacturer part number: 403168. Vendor part number: 403168. Brand: QuadBoss.

Features:

• Direct OE replacement designed to install and operate like the factory unit
• Helps maintain optimal engine operating temperature
• Precision engineered for consistent coolant flow
• OEM-style replacement for reliable performance
• Fits select 1999–2011 Polaris Worker, Xpedition, ATP, and Sportsman applications

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1
Clearance Item: t
Fitment:
1995 Polaris Magnum 425 2X4 Base
1995 Polaris Magnum 425 4X4 Base
1996 Polaris Magnum 425 2X4 Base
1996 Polaris Magnum 425 4X4 Base
1996 Polaris Magnum 425 6X6 Base
1996 Polaris Sportsman 500 4X4 Base
1997 Polaris Magnum 425 2X4 Base
1997 Polaris Magnum 425 4X4 Base
1997 Polaris Magnum 425 6X6 Base
1997 Polaris Scrambler 500 4X4 Base
1997 Polaris Sportsman 500 4X4 Base
1997 Polaris Xplorer 500 4X4 Base
1998 Polaris Big Boss 500 6X6 Base
1998 Polaris Magnum 425 2X4 Base
1998 Polaris Magnum 425 4X4 Base
1998 Polaris Scrambler 500 4X4 Base
1998 Polaris Sportsman 500 4X4 Base
1999 Polaris Big Boss 500 6X6 Base
1999 Polaris Magnum 500 4X4 Base
1999 Polaris Scrambler 500 4X4 Base
1999 Polaris Sportsman 500 4X4 Base
1999 Polaris Sportsman 500 Rse Base
1999 Polaris Worker 500 Base
2000 Polaris Magnum 500 4X4 Base
2000 Polaris Scrambler 500 4X4 Base
2000 Polaris Sportsman 500 4X4 Base
2000 Polaris Sportsman 500 6x6 Base
2000 Polaris Sportsman 500 Rse Base
2000 Polaris Xpedition 425 Base
2001 Polaris Magnum 500 4X4 Base
2001 Polaris Scrambler 500 2X4 Base
2001 Polaris Scrambler 500 4X4 Base
2001 Polaris Sportsman 400 Base
2001 Polaris Sportsman 500 6x6 Base
2001 Polaris Sportsman 500 HO Base
2001 Polaris Sportsman 500 HO DUSE Base
2001 Polaris Sportsman 500 HO RSE Base
2001 Polaris Worker 500 Base
2001 Polaris Xpedition 425 Base
2002 Polaris Magnum 500 4X4 Base
2002 Polaris Magnum 500 RMK Base
2002 Polaris Scrambler 500 2X4 Base
2002 Polaris Scrambler 500 4X4 Base
2002 Polaris Sportsman 400 Base
2002 Polaris Sportsman 500 6x6 Base
2002 Polaris Sportsman 500 HO Base
2002 Polaris Xpedition 425 Base
2003 Polaris Scrambler 500 4X4 Base
2003 Polaris Sportsman 400 Base
2003 Polaris Sportsman 500 6x6 Base
2003 Polaris Sportsman 500 HO Base
2004 Polaris Atp 500 Base
2004 Polaris Scrambler 500 4X4 Base
2004 Polaris Sportsman 400 Base
2004 Polaris Sportsman 500 6x6 Base
2004 Polaris Sportsman 500 HO Base
2005 Polaris Atp 500 Base
2005 Polaris Ranger 2x4 500 Base
2005 Polaris Scrambler 500 4X4 Base
2005 Polaris Sportsman 400 Base
2005 Polaris Sportsman 500 6x6 Base
2005 Polaris Sportsman 500 HO Base
2006 Polaris Ranger 2x4 500 Base
2006 Polaris Ranger 4x4 500 EFI Base
2006 Polaris Scrambler 500 4X4 Base
2006 Polaris Sportsman 450 Base
2006 Polaris Sportsman 500 6x6 Base
2006 Polaris Sportsman 500 Efi Base
2006 Polaris Sportsman 500 EFI X2 Base
2006 Polaris Sportsman 500 HO Base
2007 Polaris Ranger 2x4 500 Base
2007 Polaris Ranger 4x4 500 EFI Base
2007 Polaris Scrambler 500 4X4 Base
2007 Polaris Sportsman 450 Base
2007 Polaris Sportsman 500 6x6 Base
2007 Polaris Sportsman 500 Efi Base
2007 Polaris Sportsman 500 EFI Deluxe Base
2007 Polaris Sportsman 500 EFI X2 Base
2007 Polaris Sportsman 500 EFI X2 Deluxe Base
2008 Polaris Ranger 2x4 500 Base
2008 Polaris Ranger 4x4 500 EFI Base
2008 Polaris Scrambler 500 4X4 Base
2008 Polaris Sportsman 500 6x6 Base
2008 Polaris Sportsman 500 Efi Base
2008 Polaris Sportsman 500 EFI Touring Base
2008 Polaris Sportsman 500 EFI X2 Base
2008 Polaris Sportsman 500 HO Base
2009 Polaris Ranger 2x4 500 Base
2009 Polaris Ranger 4x4 500 EFI Base
2009 Polaris Scrambler 500 4X4 Base
2009 Polaris Sportsman 500 Efi Base
2009 Polaris Sportsman 500 EFI Touring Base
2009 Polaris Sportsman 500 EFI X2 Base
2009 Polaris Sportsman 500 HO Base
2010 Polaris Ranger 4x4 500 EFI Base
2010 Polaris Scrambler 500 4X4 Base
2010 Polaris Sportsman 500 EFI Touring Base
2010 Polaris Sportsman 500 HO Base
2011 Polaris Hawkeye 2x4 Base
2011 Polaris Ranger 4x4 500 EFI Base
2011 Polaris Scrambler 500 4X4 Base
2011 Polaris Sportsman 400 HO Base
2011 Polaris Sportsman 500 HO Base
2011 Polaris Sportsman 500 HO Touring Base
2012 Polaris Scrambler 500 4X4 Base
2012 Polaris Sportsman 400 HO Base
2012 Polaris Sportsman 500 HO Base
2012 Polaris Sportsman 500 HO Polaris Pursuite LE Base
2012 Polaris Sportsman 500 HO Touring Base
2013 Polaris Sportsman 400 HO Base
2013 Polaris Sportsman 400 HO South Edition Base
2013 Polaris Sportsman 500 HO Base
2013 Polaris Sportsman 500 HO Touring Base
2014 Polaris Sportsman 400 HO Base
2014 Polaris Sportsman 400 HO South Edition Base
2016 Polaris RZR XP 4 Turbo EPS Base
2016 Polaris RZR XP Turbo EPS Base
2017 Polaris RZR XP 4 Turbo EPS Base
2017 Polaris RZR XP Turbo EPS Base
2018 Polaris RZR XP 4 Turbo EPS Base
2018 Polaris RZR XP 4 Turbo EPS DYNAMIX Edition Base
2018 Polaris RZR XP 4 Turbo EPS Fox Edition Base
2018 Polaris RZR XP Turbo EPS Base
2018 Polaris RZR XP Turbo EPS DYNAMIX Edition Base
2018 Polaris RZR XP Turbo EPS Fox Edition Base
2018 Polaris RZR XP Turbo S Base
2019 Polaris RZR XP 4 Turbo EPS Base
2019 Polaris RZR XP 4 Turbo EPS DYNAMIX Edition Base
2019 Polaris RZR XP 4 Turbo EPS LE Base
2019 Polaris RZR XP 4 Turbo S Base
2019 Polaris RZR XP Turbo EPS Base
2019 Polaris RZR XP Turbo EPS DYNAMIX Edition Base
2019 Polaris RZR XP Turbo EPS LE Base
2019 Polaris RZR XP Turbo S Base
2020 Polaris RZR XP 4 Turbo Base
2020 Polaris RZR XP 4 Turbo S Base
2020 Polaris RZR XP 4 Turbo S Velocity Base
2020 Polaris RZR XP Turbo Base
2020 Polaris RZR XP Turbo S Base
2020 Polaris RZR XP Turbo S Velocity Base
2021 Polaris RZR XP 4 Turbo Base
2021 Polaris RZR XP Turbo Base