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) K&N Engineering KNNKN-157
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) K&N Engineering KNNKN-157
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) K&N Engineering KNNKN-157
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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)

KNNKN-157
024844084354
Oil Filters
20+ Units In Stock - Ships Next Business Day
$ 11.99
$ 11.99

SKU: KN-157 | UPC: 024844084354

K&N Oil Filter 1.625in OD x 2.063in H KN-157 for 1999-2011 KTM 250/400/450/520/525/625/660/690, Polaris Outlaw, 2015 Indian (Cartridge Filter)

The K&N KN-157 Powersports cartridge oil filter measures 1.625 inches outer diameter by 2.063 inches height and serves as a direct replacement for specified KTM motorcycles, Polaris ATVs, and Indian models. It traps harmful contaminants effectively while supporting high oil flow rates to keep engines running clean. Built for racers, engine builders, and riders seeking reliable filtration in dirt bikes, enduros, and supermotos.

Key Features

  • Synthetic Filter Media: Modern synthetic material delivers high oil flow with reduced pressure drop and meets or exceeds OEM specifications
  • High-Efficiency Media: Uniform pleats capture fine particles for thorough engine protection during aggressive riding
  • High Flow Design: Construction allows rapid oil circulation to maintain lubrication under high RPM and heat
  • Synthetic Oil Compatible: Handles high-end synthetic motor oils without breakdown for extended performance
  • Durable Build: Includes anti-drainback and bypass valves to prevent dry starts and ensure consistent flow

Product Notes

  • Limited warranty covers defects in materials and workmanship when installed and replaced per manufacturer service intervals
  • Replace at recommended oil change intervals for optimal engine health
  • Ships as special order item with secure packaging to prevent damage

Installation Notes

  • Professional installation recommended.
  • Direct cartridge replacement, no tools beyond standard oil filter wrench needed for most applications
  • Compatible with OEM hardware, drain oil fully before installing new filter

This Part Fits

Year Make Model Submodel
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
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
2007 KTM 525 XC-W Base
2006-2008 KTM 560 SMR Base
2003-2004 KTM 625 SXC Base
2001-2002 KTM 660 Rally Base
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
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
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

Why Choose K&N?

  • Proven leader in filtration for powersports and automotive applications worldwide
  • Engineered with precision for dirt bikes, ATVs, and motorcycles
  • Tested to handle extreme conditions with reliable contaminant capture

Frequently Asked Questions

  • Q: Will the KN-157 fit my 2004 KTM 450 EXC?
    A: Yes, it directly replaces the OEM cartridge filter on 2003-2007 KTM 450 EXC and similar models listed
  • Q: What filter media does it use?
    A: High-flow synthetic media with uniform pleats designed for powersports engines and synthetic oils
  • Q: What warranty coverage applies?
    A: Limited warranty against defects in materials and workmanship when maintained per manufacturer service intervals

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Compact box measuring 3.5 x 3 x 3 inches
  • Weight: 0.2 lbs
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