K&N Arctic Cat 2.688in OD x 3.344in H Oil Filter

Name: K&N Arctic Cat 2.688in OD x 3.344in H Oil Filter
Brand: K&N Engineering
SKU: KNNKN-621
Price: 17.99 USD
Availability: InStock

SKU: KNNKN-621

$17.99 USD

Shipping calculated at checkout.

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, and is protected by the K&N 1-Year Limited Warranty.

This Part Fits:

Year	Make	Model	Submodel
2010-2011	Arctic Cat	1000 EFI H2 4x4 Auto TRV	Base
2009-2011	Arctic Cat	1000 TRV Cruiser	Base
2013-2017	Arctic Cat	1000 XT	Base
2012	Arctic Cat	1000i GT	Base
2011-2012	Arctic Cat	350	Base
2008-2009	Arctic Cat	366 4x4 Auto	Base
2010-2011	Arctic Cat	366 4x4 Auto SE	Base
2015	Arctic Cat	400	Base
2011	Arctic Cat	425	Base
2012	Arctic Cat	425i	Base
2012	Arctic Cat	425i SE	Base
2011,2015	Arctic Cat	450	Base
2013	Arctic Cat	450 Core	Base
2010	Arctic Cat	450 EFI H1 4x4 Auto	Base
2011	Arctic Cat	450 LTD	Base
2011	Arctic Cat	450 TRV	Base
2012	Arctic Cat	450i	Base
2014-2017	Arctic Cat	500	Base
2009	Arctic Cat	500 4x4	Base
2008-2009	Arctic Cat	500 4x4 Auto	Base
2008	Arctic Cat	500 4x4 Auto M4	Base
2008	Arctic Cat	500 4x4 Auto TRV	Base
2013	Arctic Cat	500 Core	Base
2013	Arctic Cat	500 XT	Base
2012,2014	Arctic Cat	550	Base
2010-2011	Arctic Cat	550 4x4 Auto	Base
2010	Arctic Cat	550 4x4 Auto LE	Base
2009-2011	Arctic Cat	550 4x4 Auto TRV	Base
2009	Arctic Cat	550 4x4 Auto TRV LE	Base
2013	Arctic Cat	550 Core	Base
2009	Arctic Cat	550 H1 EFI	Base
2011,2014	Arctic Cat	550 LTD	Base
2011	Arctic Cat	550 S	Base
2011	Arctic Cat	550 TRV Cruiser	Base
2011	Arctic Cat	550 TRV GT	Base
2010	Arctic Cat	550 TRV S GT	Base
2013-2014	Arctic Cat	550 XT	Base
2012	Arctic Cat	550i GT	Base
2012-2013	Arctic Cat	550i LTD	Base
2006-2008,2010-2011	Arctic Cat	650 H1 4x4 Auto	Base
2007	Arctic Cat	650 H1 4x4 Auto LE	Base
2010-2011	Arctic Cat	650 H1 4x4 Auto Mud Pro	Base
2006	Arctic Cat	650 H1 4x4 Auto SE	Base
2007	Arctic Cat	650 H1 4x4 Auto TBX	Base
2008-2009	Arctic Cat	650 H1 4x4 Auto TRV	Base
2007	Arctic Cat	650 H1 4x4 Auto TRV Plus	Base
2007	Arctic Cat	650 H1 4x4 Auto TRV Plus LE	Base
2011,2014	Arctic Cat	700	Base
2013	Arctic Cat	700 Core	Base
2007-2008	Arctic Cat	700 EFI 4x4 Auto	Base
2007	Arctic Cat	700 EFI 4x4 Auto LE	Base
2008	Arctic Cat	700 EFI 4x4 Auto M4	Base
2008-2011	Arctic Cat	700 EFI 4x4 Auto TRV Cruiser	Base
2008	Arctic Cat	700 EFI 4x4 Auto TRV LE	Base
2009-2010	Arctic Cat	700 EFI H1 4x4 Auto	Base
2009-2010	Arctic Cat	700 EFI H1 4x4 Auto LE	Base
2009-2011	Arctic Cat	700 EFI H1 4x4 Auto Mud Pro	Base
2008-2009	Arctic Cat	700 EFI H1 4x4 Auto SE	Base
2010	Arctic Cat	700 EFI H1 4x4 Auto TBX	Base
2009-2011	Arctic Cat	700 EFI H1 4x4 Auto TRV	Base
2011,2014	Arctic Cat	700 LTD	Base
2010-2011	Arctic Cat	700 S	Base
2010-2011	Arctic Cat	700 TRV GT	Base
2013-2014	Arctic Cat	700 XT	Base
2012	Arctic Cat	700i	Base
2012	Arctic Cat	700i GT	Base
2012-2013	Arctic Cat	700i LTD	Base
2016-2017	Arctic Cat	Alterra 400	Base
2016	Arctic Cat	Alterra 450	Base
2017	Arctic Cat	Alterra 500	Base
2016	Arctic Cat	Alterra 500 XT	Base
2016	Arctic Cat	Alterra 550	Base
2016	Arctic Cat	Alterra 550 XT	Base
2020	Arctic Cat	Alterra 570	Base
2020	Arctic Cat	Alterra 570 EPS	Base
2016-2017,2020	Arctic Cat	Alterra 700	Base
2016-2017	Arctic Cat	Alterra 700 XT	Base
2017	Arctic Cat	Alterra 90	Base
2020	Arctic Cat	Alterra TBX 700	Base
2017	Arctic Cat	Alterra TRV 1000 XT	Base
2017	Arctic Cat	Alterra TRV 500	Base
2016-2017	Arctic Cat	Alterra TRV 550 XT	Base
2020	Arctic Cat	Alterra TRV 700	Base
2017	Arctic Cat	Alterra TRV 700 XT	Base
2017	Arctic Cat	Bearcat 2000 LT ES	Base
2017	Arctic Cat	Bearcat 2000 XT ES	Base
2016-2017	Arctic Cat	Bearcat 3000 LT	Base
2017	Arctic Cat	Bearcat 7000 XT	Base
2017	Arctic Cat	Bearcat 7000 XT GS	Base
2017	Arctic Cat	DVX 90	Base
2016-2017	Arctic Cat	HDX 500 XT	Base
2017	Arctic Cat	HDX 700 CREW XT	Base
2016	Arctic Cat	HDX 700 SE Hunter Edition	Base
2016-2017	Arctic Cat	HDX 700 XT	Base
2017	Arctic Cat	Lynx 2000 ES	Base
2017	Arctic Cat	Lynx 2000 LT ES	Base
2017	Arctic Cat	M 6000 SE ES 141	Base
2017	Arctic Cat	M 6000 SE ES 153	Base
2017	Arctic Cat	M 6000 Sno Pro 153	Base
2017	Arctic Cat	M 6000 Sno Pro ES 153	Base
2017	Arctic Cat	M 8000 HCR 153	Base
2017	Arctic Cat	M 8000 Limited 153	Base
2017	Arctic Cat	M 8000 Limited 162	Base
2017	Arctic Cat	M 8000 Limited ES 153	Base
2017	Arctic Cat	M 8000 Limited ES 162	Base
2017	Arctic Cat	M 8000 Mountain Cat 153	Base
2017	Arctic Cat	M 8000 Mountain Cat 162	Base
2017	Arctic Cat	M 8000 Mountain Cat ES 153	Base
2017	Arctic Cat	M 8000 Mountain Cat ES 162	Base
2017	Arctic Cat	M 8000 SE ES 153	Base
2017	Arctic Cat	M 8000 SE ES 162	Base
2017	Arctic Cat	M 8000 Sno Pro 153	Base
2017	Arctic Cat	M 8000 Sno Pro 162	Base
2017	Arctic Cat	M 8000 Sno Pro ES 141	Base
2017	Arctic Cat	M 8000 Sno Pro ES 153	Base
2017	Arctic Cat	M 8000 Sno Pro ES 162	Base
2012-2015,2017	Arctic Cat	MudPro 1000 LTD	Base
2016	Arctic Cat	MudPro 1000 SE	Base
2011	Arctic Cat	MudPro 700	Base
2012-2017	Arctic Cat	MudPro 700 LTD	Base
2012	Arctic Cat	MudPro 700i	Base
2016-2017	Arctic Cat	Pantera 3000	Base
2017	Arctic Cat	Pantera 7000 Limited	Base
2017	Arctic Cat	Pantera 7000 XT Limited	Base
2017,2020	Arctic Cat	Prowler 500	Base
2009	Arctic Cat	Prowler 550	Base
2008	Arctic Cat	Prowler 650 4x4 Auto	Base
2007	Arctic Cat	Prowler 650 H1	Base
2014-2015	Arctic Cat	Prowler HDX 500	Base
2014	Arctic Cat	Prowler HDX 500 Limited	Base
2014	Arctic Cat	Prowler HDX 500 XT	Base
2011	Arctic Cat	Prowler HDX 700	Base
2014	Arctic Cat	Prowler HDX 700 Limited	Base
2015	Arctic Cat	Prowler HDX 700 XT	Base
2012-2013	Arctic Cat	Prowler HDX 700i	Base
2016-2017	Arctic Cat	Prowler XT 1000	Base
2010-2011,2014	Arctic Cat	Prowler XT 550	Base
2012-2013	Arctic Cat	Prowler XT 550i	Base
2008	Arctic Cat	Prowler XT 650 4x4 Auto	Base
2008	Arctic Cat	Prowler XT 650 4x4 Auto M4	Base
2006-2007,2009	Arctic Cat	Prowler XT 650 H1	Base
2009,2015-2017	Arctic Cat	Prowler XT 700	Base
2010-2011,2014	Arctic Cat	Prowler XTX 700	Base
2009-2011	Arctic Cat	Prowler XTX 700 H1 EFI	Base
2009	Arctic Cat	Prowler XTX 700 LE	Base
2012-2013	Arctic Cat	Prowler XTX 700i	Base
2010-2011,2014	Arctic Cat	Prowler XTZ 1000	Base
2009	Arctic Cat	Prowler XTZ 1000 Baja	Base
2009-2011	Arctic Cat	Prowler XTZ 1000 H2 EFI	Base
2012-2013	Arctic Cat	Prowler XTZ 1000i	Base
2014-2017	Arctic Cat	TBX 700	Base
2011	Arctic Cat	TBX 700 LTD	Base
2016	Arctic Cat	TBX 700 SE	Base
2013	Arctic Cat	TBX 700 XT	Base
2012	Arctic Cat	TBX 700i GT	Base
2008-2010	Arctic Cat	Thundercat 1000 4x4 Auto	Base
2010	Arctic Cat	Thundercat 1000 4x4 Auto LE	Base
2013-2015	Arctic Cat	TRV 1000 LTD	Base
2015	Arctic Cat	TRV 1000 XT	Base
2012	Arctic Cat	TRV 1000i Cruiser	Base
2012	Arctic Cat	TRV 1000i GT	Base
2013	Arctic Cat	TRV 400 Core	Base
2012	Arctic Cat	TRV 450i	Base
2014-2015	Arctic Cat	TRV 500	Base
2013	Arctic Cat	TRV 500 Core	Base
2013-2015	Arctic Cat	TRV 550 LTD	Base
2013-2015	Arctic Cat	TRV 550 XT	Base
2012	Arctic Cat	TRV 550i Crusier	Base
2012	Arctic Cat	TRV 550i GT	Base
2013-2015	Arctic Cat	TRV 700 LTD	Base
2016	Arctic Cat	TRV 700 SE	Base
2013-2015	Arctic Cat	TRV 700 XT	Base
2012	Arctic Cat	TRV 700i Cruiser	Base
2012	Arctic Cat	TRV 700i GT	Base
2013-2015	Arctic Cat	Wildcat 1000	Base
2013-2014	Arctic Cat	Wildcat 1000 LTD	Base
2013-2014	Arctic Cat	Wildcat 4 1000	Base
2014	Arctic Cat	Wildcat 4 Limited	Base
2014-2017	Arctic Cat	Wildcat 4X	Base
2014-2015	Arctic Cat	Wildcat 4X Limited	Base
2015-2016	Arctic Cat	Wildcat Sport	Base
2015-2017	Arctic Cat	Wildcat Sport Limited	Base
2017	Arctic Cat	Wildcat Sport SE	Base
2015-2017	Arctic Cat	Wildcat Sport XT	Base
2015-2017	Arctic Cat	Wildcat Trail	Base
2015-2017	Arctic Cat	Wildcat Trail Limited	Base
2020	Arctic Cat	Wildcat Trail LTD	Base
2016-2017	Arctic Cat	Wildcat Trail SE	Base
2015-2017,2020	Arctic Cat	Wildcat Trail XT	Base
2016-2017	Arctic Cat	Wildcat X	Base
2013-2015	Arctic Cat	Wildcat X 1000	Base
2014-2017	Arctic Cat	Wildcat X Limited	Base
2016	Arctic Cat	Wildcat X SE	Base
2015-2017	Arctic Cat	XC 450	Base
2011-2014	Arctic Cat	XC 450i	Base
2015	Arctic Cat	XR 500	Base
2015	Arctic Cat	XR 550	Base
2015	Arctic Cat	XR 550 LTD	Base
2015	Arctic Cat	XR 550 XT	Base
2015	Arctic Cat	XR 700	Base

K&N Cold Air intake and Air Filters frequently asked questions

Typical disposable paper air filters function on a size-dependent basis, in which dirt particles that are larger than the openings in the filter media are blocked, while particles that are smaller than the openings can pass through. Most disposable paper filters create more airflow restriction than K&N filters, as the openings in the filter media have to be tiny in order to filter efficiently, which can reduce airflow.
K&N® High-Flow Air Filters™ utilize depth loading, in which multiple layers of pleated cotton fibers provide particle retention on many levels. However, while most typical paper or foam filters would experience a large reduction in airflow when designed for a dramatic increase in efficiency, High-Flow Air Filters™ are specifically engineered to capture dirt while still allowing a high volume of airflow to pass through.

Under normal circumstances, an increase in airflow to the engine also increases the efficiency of the combustion process, which can result in an increase in horsepower. K&N® High-Flow Air Filters™ are designed to provide high airflow in order to help increase engine performance.

Both airflow and filtration efficiency are critical to engine performance. Some companies design filters that provide high airflow by greatly reducing filtration efficiency, which can risk engine damage. K&N® filters are designed to provide high airflow while also maintaining exceptional filtration. As the appearance of K&N filters has become popular, many companies have started offering products that mimic the appearance of K&N filters, but do not provide the same level of quality and protection.

Micron ratings are typically used only for liquid filters. K&N® tests filtration efficiency and capacity using the ISO 5011 laboratory test procedure, and most K&N® air filters test between 97%-99% efficiency. Many K&N air filters have published test data included in the “Available Information” section of the product details page.

Laboratory tests utilizing ISO 5011 test protocols demonstrate that most K&N® air filters achieve overall filtration efficiency in the range of 97% to 99%. (The ability of an air filter to protect an engine is generally measured in accordance with laboratory testing procedure ISO 5011.) K&N® air filter designs are subjected to ISO 5011 testing involving coarse and fine test dust, and the test results are measured by a specific air filtration efficiency number. K&N® filters are designed to provide exceptional airflow while simultaneously targeting an overall filtration efficiency that meets or exceeds OEM standards.

No. Most disposable filters are "barrier filters,” which act as a physical barrier to dust particles. Once a dust particle covers a pore in the media, air can no longer flow through that space. K&N® replacement air filters are designed to absorb dirt and dust particles instead of physically blocking them, allowing the pores in the material to continue flowing air.

Most vehicles do not have a published minimum filtration requirement, as filtration needs will vary greatly among vehicles based on usage and other factors. However, K&N® filters are engineered to meet or exceed OEM standards.

K&N® does not make any claims or advertisements regarding fuel economy.

K&N® does not complete vehicle performance tests (dynamometer tests) for every application for which a replacement air filter is offered. Airflow testing is performed on every air filter design in order to verify that the K&N filter provides high airflow. However, other components of the vehicle's air intake system (like the air filter housing or tubing) can create air restriction and limit horsepower. The design of these parts varies among different vehicles and manufacturers, so there is no way to accurately estimate a specific horsepower gain from replacing an air filter alone.

Filter efficiency is only one element of filter performance. Capacity, restriction, and service life should also be taken into consideration when evaluating a filter. These other factors reflect the amount of dirt the filter can hold, how easily air can flow through the filter, and how long the filter can be used before servicing. A brick wall, for instance, would be likely to filter 100% of particulate matter—but would of course provide very limited airflow! K&N® filters are designed to strike a desirable balance between efficiency, capacity, durability, and airflow.

K&N® High-Flow Air Filters™ are designed to last for the life of your vehicle. If you assume an engine life of 175,000 miles—and replace your disposable air filter every 15,000 miles—only one K&N air filter will be used during the same period in which eleven disposable air filters are discarded.

While the oiled K&N® High-Flow Air Filter™ continues to be the most popular filter type among K&N® filter products, K&N also offers non-oiled synthetic DRYFLOW® air filters. The DRYFLOW® filter media is composed of two-layered synthetic material, which—much like High-Flow Air Filter™ media—provides depth loading properties. DRYFLOW® filter media provides slightly less airflow than High-Flow Air Filter™ media, though it is still designed to strike a desirable balance between airflow and efficiency, provide a high level of contaminant capture, and outperform typical disposable paper air filters in airflow. Because they do not have to be re-oiled, servicing DRYFLOW® air filters is typically a quick and easy process.

No. In the United States, in order for the manufacturer of a warranted product to void or deny warranty coverage of a repair due to the use of an aftermarket part, the manufacturer must provide proof that the aftermarket part is the cause of the necessary repair. These rights are protected under the Consumer Products Warranty Act of 1975 (also referred to as the Magnuson-Moss Warranty Act).

K&N® performance air intake systems are designed to create a less restrictive path for airflow to reach the engine by removing the stock intake tubing that can increase restriction, and also by utilizing high airflow filter media.
In a K&N cold air intake system, air first passes through a performance air filter—typically a High-Flow Air Filter™, and then passes through a specially designed tubing system that helps provide a smooth path for airflow.

K&N® cold air intake systems allow for increased airflow to your engine, which results in an increase in horsepower and torque.

K&N offers a guaranteed increase in horsepower and torque for all K&N intake systems. Dynamometer tests indicating estimated horsepower and torque increases compared to the OEM intake system will appear on the "Product Details" page for each performance intake system. Results will vary.
K&N® provides estimated SAE corrected horsepower gains that are based on actual dynamometer testing for a specific or similar vehicle. The actual horsepower increase a consumer will receive will vary depending on such things as vehicle condition, fuel, weather, and other circumstances. It would be impractical to test every possible vehicle configuration or year in which a particular engine may be used; therefore, many of our estimates are based upon similar engine/vehicle/year dynamometer testing that we believe to be representational for the vehicle listed.

No. In the United States, in order for the manufacturer of a warranted product to void or deny warranty coverage of a repair due to the use of an aftermarket part, the manufacturer must provide proof that the aftermarket part is the cause of the necessary repair. These rights are protected under the Consumer Products Warranty Act of 1975 (also referred to as the Magnuson-Moss Warranty Act).

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