K&N Oil Filter 1.625in OD x 2.063in H for 99-07 KTM 250/400/450/520/525/540/625/660/690 (2nd Filter) - KN-157

K&N Powersports Cartridge Oil Filters are designed to satisfy the needs of racers and engine builders as well as the average motorcycle or ATV owner who wants the best oil filter available. K&N Powersports Oil Filters trap harmful contaminants while the filter's construction allows for high oil flow rates. K&N Oil Filters are covered by a limited warranty to be free from defects in materials and workmanship when installed and replaced using engine and equipment manufacturer's recommended service intervals.

This Part Fits:

Year	Make	Model	Submodel
2015	Indian	Chief Classic	Base
2015	Indian	Chief Vintage	Base
2015	Indian	Chieftain	Base
2015	Indian	Roadmaster	Base
2001-2006	KTM	250 EXC	Base
2003-2005	KTM	250 EXC 4-Stroke	Base
2000-2007	KTM	400 EXC	Base
2001-2002	KTM	400 MXC	Base
1999-2002	KTM	400 SX	Base
2007	KTM	400 XC-W	Base
2003-2007	KTM	450 EXC	Base
2003-2005	KTM	450 MXC	Base
2005-2007	KTM	450 SMR	Base
2004	KTM	450 SMS	Base
2003	KTM	450 SX-F	Base
2003-2006	KTM	450 SXS	Base
2008-2010	KTM	450 XC	Base
2007-2008	KTM	450 XC-W	Base
2003	KTM	450SX	Base
2000-2002	KTM	520 EXC	Base
2000-2002	KTM	520 MXC	Base
2000-2002	KTM	520 SX	Base
2003-2007	KTM	525 EXC	Base
2006-2007	KTM	525 EXC-G	Base
2003-2005	KTM	525 MXC	Base
2004-2006	KTM	525 SMR	Base
2003-2006	KTM	525 SX	Base
2006-2010	KTM	525 XC	Base
2006-2007	KTM	525 XC-G	Base
2007	KTM	525 XC-W	Base
2006-2008	KTM	560 SMR	Base
2003-2004	KTM	625 SXC	Base
2001-2002,2004-2006	KTM	660 Rally	Base
2003-2005	KTM	660 SMC	Base
2004	KTM	660 SMS	Base
2008-2011	KTM	690 Duke	Base
2008-2009	KTM	690 Enduro	Base
2009-2011	KTM	690 Enduro R	Base
2008-2011	KTM	690 SMC	Base
2007-2008	KTM	690 Supermoto	Base
2008-2009	Polaris	Outlaw 450 MXR	Base
2007-2011	Polaris	Outlaw 525 IRS	Base
2008-2010	Polaris	Outlaw 525 S	Base

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

When it comes to automotive filters, there is no greater known name that K&N Engineering!

K&N Engineering is an American manufacturer that specializes in designing and producing high-performance air filtration systems for automotive, motorcycle, and industrial applications. Founded in 1969 by Ken Johnson and Norm McDonald, K&N initially gained recognition for its oil bath air filters, but it became widely known for its innovative cotton gauze air filters that deliver superior performance compared to traditional paper filters.

K&N is best known for its air filters, which are made from multiple layers of oiled cotton gauze, sandwiched between aluminum mesh. This design allows for higher airflow compared to conventional filters, enhancing engine performance, throttle response, and efficiency. These filters are also reusable and washable, offering long-term cost savings and reducing environmental waste compared to disposable paper filters.

The company offers a variety of products, including air intake kits, cold air intake systems, and performance filters for cars, trucks, motorcycles, and even powersport vehicles. K&N’s cold air intakes, in particular, are popular upgrades for performance enthusiasts, as they provide cooler air to the engine, improving power output and efficiency.

In addition to air filtration products, K&N also manufactures oil filters and performance accessories such as cleaning kits for maintaining their filters. Their products are designed to meet the needs of both casual car enthusiasts and professional racers. The company has a strong presence in the motorsport community and is often seen as a trusted brand for improving engine performance and efficiency.

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!