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ARCTIC CAT Alterra 450 KN-621 K&N Oil Filter

Quick overview
K&N® premium oil filters for powersports vehicles utilize an innovative, highly efficient synthetic-blend filtration media designed to be compatible with synthetic, petroleum-based, and blended oils, including the high concentrations of synthetic racing oils. The heavy-duty canister is engineered to be exceptionally durable, and a 17mm welded hex nut can be used for quick and easy filter removal. Engineered to support exceptionally high flow rates while providing outstanding protection from harmful engine contaminants, each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Designed to allow high flow rates and a consistent flow of oil to your engine
Pleated synthetic-blend filtration media removes most harmful contaminants
Fast and easy Wrench-Off® removal using the welded 17mm hex nut
Pre-drilled nut for safety wire attachment
Heavy-duty canister for outstanding durability
Laboratory tested to ensure excellent capacity, efficiency, and mechanical strength
Designed to operate with all synthetic, conventional, and blended motor oils
Description
K&N® premium oil filters for powersports vehicles utilize an innovative, highly efficient synthetic-blend filtration media designed to be compatible with synthetic, petroleum-based, and blended oils, including the high concentrations of synthetic racing oils. The heavy-duty canister is engineered to be exceptionally durable, and a 17mm welded hex nut can be used for quick and easy filter removal. Engineered to support exceptionally high flow rates while providing outstanding protection from harmful engine contaminants, each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Designed to allow high flow rates and a consistent flow of oil to your engine
Pleated synthetic-blend filtration media removes most harmful contaminants
Fast and easy Wrench-Off® removal using the welded 17mm hex nut
Pre-drilled nut for safety wire attachment
Heavy-duty canister for outstanding durability
Laboratory tested to ensure excellent capacity, efficiency, and mechanical strength
Designed to operate with all synthetic, conventional, and blended motor oils
This product will suit the bikes listed below.
MakeModelYear
ARCTIC CATAlterra 5002017,2018
ARCTIC CATAlterra 7002017,2018
ARCTIC CATAlterra 700XT2017,2018
ARCTIC CATProwler 5002017,2018
ARCTIC CATWildcat 4X2014,2015,2016,2017,2018
ARCTIC CATWildcat Sport LTD2015,2016,2017,2018
ARCTIC CATWildcat Sport XT2015,2016,2017,2018
ARCTIC CATWildcat Trail2015,2016,2017,2018
ARCTIC CATWildcat Trail LTD2015,2016,2017,2018
ARCTIC CATWildcat Trail SE2016,2017,2018
ARCTIC CATWildcat Trail XT2015,2016,2017,2018
ARCTIC CATWildcat X2016,2017,2018
ARCTIC CATWildcat X LTD2014,2015,2016,2017,2018
ARCTIC CAT1000 XT2013,2014,2015,2016,2017
ARCTIC CAT5002014,2015,2016,2017
ARCTIC CATAlterra 4002016,2017
ARCTIC CATAlterra 550XT2017
ARCTIC CATAlterra 902017
ARCTIC CATAlterra TRV1000XT2017
ARCTIC CATAlterra TRV5002017
ARCTIC CATAlterra TRV550XT2016,2017
ARCTIC CATAlterra TRV700XT2017
ARCTIC CATDVX902017
ARCTIC CATHDX 500XT2016,2017
ARCTIC CATHDX 700 Crew XT2017
ARCTIC CATHDX 700XT2016,2017
ARCTIC CATMudPro 1000 LTD2012,2013,2014,2015,2017
ARCTIC CATMudPro 700 LTD2012,2013,2014,2015,2016,2017
ARCTIC CATProwler XT 10002016,2017
ARCTIC CATProwler XT 7002015,2016,2017
ARCTIC CATTBX7002014,2015,2016,2017
ARCTIC CATAlterra 4502016
ARCTIC CATAlterra 500XT2016
ARCTIC CATHDX 700 SE Hunter Edition2016
ARCTIC CATMudPro 1000 SE2016
ARCTIC CATTBX700 SE2016
ARCTIC CATTRV1000 XT L7e2016
ARCTIC CATTRV550 XT2013,2014,2015,2016
ARCTIC CATTRV700 SE2016
ARCTIC CATTRV700 T3S2016
ARCTIC CATWildcat Sport2015,2016
ARCTIC CATWildcat X SE2016
ARCTIC CATWildcat X Special Edition2016
ARCTIC CATXC4502015,2016
ARCTIC CAT4002015
ARCTIC CAT4502015
ARCTIC CAT700 XT2013,2014
ARCTIC CAT700i LTD2012,2013,2014
ARCTIC CATProwler HDX 5002014,2015
ARCTIC CATProwler HDX 700 XT2015
ARCTIC CATTRV1000 LTD2013,2014,2015
ARCTIC CATTRV1000 XT2015
ARCTIC CATTRV5002014,2015
ARCTIC CATTRV550 LTD2013,2014,2015
ARCTIC CATTRV700 LTD2013,2014,2015
ARCTIC CATTRV700 XT2013,2014,2015
ARCTIC CATWildcat 10002013,2014,2015
ARCTIC CATWildcat 4X LTD2014,2015
ARCTIC CATWildcat X 10002013,2014,2015
ARCTIC CATXR5002015
ARCTIC CATXR5502015
ARCTIC CATXR550 LTD2015
ARCTIC CATXR550 XT2015
ARCTIC CATXR7002015
ARCTIC CATXR700 LTD2015
ARCTIC CATXR700 XT2015
ARCTIC CAT5502014
ARCTIC CAT550 LTD2011,2014
ARCTIC CAT550 XT2013,2014
ARCTIC CAT7002014
ARCTIC CATProwler HDX 500 Limited2014
ARCTIC CATProwler HDX 500 XT2014
ARCTIC CATProwler HDX 700 Limited2014
ARCTIC CATProwler XT 5502010,2011,2014
ARCTIC CATProwler XTX 7002010,2011,2014
ARCTIC CATProwler XTZ 10002014
ARCTIC CATWildcat 1000 LTD2013,2014
ARCTIC CATWildcat 4 10002013,2014
ARCTIC CATWildcat 4 LTD2014
ARCTIC CATXC450i2011,2012,2013,2014
ARCTIC CAT450 Core2013
ARCTIC CAT500 Core2013
ARCTIC CAT500 XT2013
ARCTIC CAT550 4x4 Auto2010,2011,2012,2013
ARCTIC CAT550 Core2013
ARCTIC CAT550i LTD2012,2013
ARCTIC CAT700 Core2013
ARCTIC CATProwler HDX 700i2013
ARCTIC CATProwler XT 550i2012,2013
ARCTIC CATProwler XTX 700i2013
ARCTIC CATProwler XTZ 1000i2013
ARCTIC CATTBX700 XT2013
ARCTIC CATTRV400 Core2013
ARCTIC CATTRV500 Core2013
ARCTIC CAT425i2012
ARCTIC CAT425i SE2012
ARCTIC CAT550i2012
ARCTIC CAT550i GT2012
ARCTIC CAT700 H1 EFI2008,2009,2010,2011,2012
ARCTIC CAT700i2012
ARCTIC CAT700i GT2012
ARCTIC CATMudPro 700i2012
ARCTIC CATTBX700i GT2012
ARCTIC CATTRV10002012
ARCTIC CATTRV550i Cruiser EFI2012
ARCTIC CATTRV550i GT EFI2012
ARCTIC CATTRV700 H1 EFI2009,2010,2011,2012
ARCTIC CATTRV700i GT2012
ARCTIC CATXTX700i Prowler 4X42012
ARCTIC CATXTX700i Prowler 4X4 HDX2012
ARCTIC CATXTZ1000i Prowler2012
ARCTIC CAT4252011
ARCTIC CAT550 H1 EFI2009,2010,2011
ARCTIC CAT550 S2011
ARCTIC CAT650 H1 4x4 Auto2007,2008,2009,2010,2011
ARCTIC CAT700 H1 EFI Mudpro2009,2010,2011
ARCTIC CAT700S2010,2011
ARCTIC CATMudPro 7002011
ARCTIC CATProwler HDX 7002011
ARCTIC CATProwler XTX 700 H1 EFI2009,2010,2011
ARCTIC CATProwler XTZ 1000 H2 EFI2009,2010,2011
ARCTIC CATTBX700 LTD2011
ARCTIC CATTRV1000 EFI Cruiser2011
ARCTIC CATTRV550 H1 EFI2009,2010,2011
ARCTIC CATTRV700 S2010,2011
ARCTIC CAT550 4x4 Auto LE2010
ARCTIC CAT550 TRV S GT2010
ARCTIC CATProwler 7002010
ARCTIC CATThundercat 1000 H22010
ARCTIC CATTRV1000 H2 EFI2010
ARCTIC CATTRV4002009,2010
ARCTIC CAT366 4x4 Auto2008,2009
ARCTIC CAT500 4x42009
ARCTIC CAT500 4x4 Auto2008,2009
ARCTIC CAT650 H1 4x4 Auto TBX2007
ARCTIC CAT700 H1 EFI LE2009
ARCTIC CAT700 H1 EFI SE2009
ARCTIC CATProwler 550 H1 EFI2009
ARCTIC CATProwler 650 H12007
ARCTIC CATProwler XT 650 4x4 Auto M42008,2009
ARCTIC CATProwler XT 650 H12006,2007,2008,2009
ARCTIC CATProwler XT 700 H1 EFI2009
ARCTIC CATProwler XTX 700 H1 EFI LE2009
ARCTIC CATTBX6502009
ARCTIC CATThundercat2008,2009
ARCTIC CATTRV1000 H2 EFI Cruiser2009
ARCTIC CATTRV650 H12009
ARCTIC CAT500 4x4 Auto M42008
ARCTIC CAT500 4x4 Auto TRV2008
ARCTIC CAT650 H1 4x4 Auto TRV2008
ARCTIC CAT700 EFI 4x4 Auto2007,2008
ARCTIC CAT700 EFI 4x4 Auto M42008
ARCTIC CAT700 EFI 4x4 Auto TRV LE2008
ARCTIC CAT700 H1 EFI 4x4 Auto SE2008
ARCTIC CATProwler 650 4x4 Auto2008
ARCTIC CATProwler XT 650 4x4 Auto2008
ARCTIC CAT650 H1 4x4 Auto LE2007
ARCTIC CAT650 H1 4x4 Auto TRV Plus2007
ARCTIC CAT650 H1 4x4 TRV Plus LE2007
ARCTIC CAT700 EFI 4x4 Auto LE2007
ARCTIC CAT650 H1 4x4 SE2006