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Chrome Oil Filter - KN-171C

  • Part #:
    303841
  • Mfg Part #:
    KN-171C
  • OEM/Ref#:
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Chrome Oil Filter - KN-171C

  • Part #:
    303841
  • Mfg Part #:
    KN-171C
  • OEM/Ref#:
MSRP: $20.49

Price: $16.58 19% off!
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K & N Chrome Oil Filter - KN-171C
  • Get maximum filtering ability from resin-impregnated filter media
  • Canister and inner core are 24% stronger
  • Nut removal is quick and easy - durable 17mm nut
  • Exceptional rubber sealing at safety valve and gasket
Specifications
Part #: 303841
Mfg #: KN-171C
Type Oil Filter
Units Each
Weight 0.87 lbs
Harley Davidson Part Number(s):
63731-99A, 63798-99A
Alternate/OEM Part Number(s):
99, KN171C
UPC Code:
024844087232
Fitment for K & N Chrome Oil Filter - KN-171C

Part 303841 fits the following machines

Harley-Davidson
  • Dyna Convertible - FXDS-CONV 1999-2000
  • Dyna Fat Bob - FXDF 2009-2017
  • Dyna Fat Bob (EFI) - FXDF 2008
  • Dyna Fat Bob CVO/SE - FXDFSE 2009
  • Dyna Fat Bob CVO/SE - FXDFSE 2 2010
  • Dyna Low Rider - FXDL 1999-2005, 2009, 2014-2017
  • Dyna Low Rider (EFI) -FXDL 2007-2008
  • Dyna Low Rider Injected - FXDL I 2004-2006
  • Dyna Street Bob - FXDB 2009-2017
  • Dyna Street Bob (EFI) - FXDB 2007-2008
  • Dyna Super Glide - FXD 1999-2005, 2009-2010
  • Dyna Super Glide (EFI) - FXD 2007-2008
  • Dyna Super Glide Custom - FXDC 2005, 2009-2014
  • Dyna Super Glide Custom (EFI) - FXDC 2007-2008
  • Dyna Super Glide Custom Injected - FXDC I 2005-2006
  • Dyna Super Glide CVO/SE (EFI) - FXDSE 2007
  • Dyna Super Glide CVO/SE (EFI) - FXDSE 2 2008
  • Dyna Super Glide Sport - FXDX 1999-2005
  • Dyna Super Glide Sport Injected - FXDX I 2004-2005
  • Dyna Super Glide T-Sport - FXDXT 2001-2003
  • Dyna Switchback - FLD 2012-2016
  • Dyna Wide Glide - FXDWG 1999-2005, 2010-2017
  • Dyna Wide Glide - FXDWG 2 2001
  • Dyna Wide Glide - FXDWG 3 2002
  • Dyna Wide Glide (EFI) - FXDWG 2007-2008
  • Dyna Wide Glide Injected - FXDWG I 2004-2006
  • Electra Glide Classic - FLHTC 1999-2005, 2009-2013
  • Electra Glide Classic (EFI) - FLHTC 2007-2008
  • Electra Glide Classic Injected - FLHTC I 1999-2006
  • Electra Glide Injected CVO/SE - FLHTCSE 2004
  • Electra Glide Injected CVO/SE - FLHTCSE 2 2005
  • Electra Glide Police - FLHTP 2014-2018
  • Electra Glide Standard - FLHT 1999-2006, 2009, 2019-2020
  • Electra Glide Standard (EFI) - FLHT 2007-2008
  • Electra Glide Standard Injected - FLHT I 2003-2006
  • Electra Glide Ultra Classic - FLHTCU 1999, 2009-2019
  • Electra Glide Ultra Classic (EFI) - FLHTCU 2007-2008
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 4 2009
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 5 2010
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 6 2011
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 7 2012
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 8 2013
  • Electra Glide Ultra Classic CVO/SE (EFI) - FLHTCUSE 2 2007
  • Electra Glide Ultra Classic CVO/SE (EFI) - FLHTCUSE 3 2008
  • Electra Glide Ultra Classic Injected - FLHTCU I 1999-2006
  • Electra Glide Ultra Classic Injected CVO/SE - FLHTCUSE 2006
  • Electra Glide Ultra Classic Low - FLHTCUL 2015-2016
  • Electra Glide Ultra Limited - FLHTK 2010-2020
  • Electra Glide Ultra Limited CVO/SE - FLHTKSE 2014-2020
  • Electra Glide Ultra Limited Low - FLHTKL 2015-2019
  • Freewheeler - FLRT 2015-2020
  • Heritage Softail - FLST 2006
  • Heritage Softail Classic - FLSTC 2000-2006, 2009-2017
  • Heritage Softail Classic (EFI) - FLSTC 2007-2008
  • Heritage Softail Classic Injected - FLSTC I 2001-2006
  • Heritage Softail Injected - FLST I 2006
  • Heritage Softail Springer - FLSTS 2000-2003
  • Heritage Softail Springer Injected - FLSTS I 2001-2003
  • Low Rider S - FXDLS 2016-2017
  • Road Glide - FLTR 1999-2002, 2009
  • Road Glide - FLTRX 2015-2020
  • Road Glide (EFI) - FLTR 2007-2008
  • Road Glide Custom - FLTRX 2010-2013
  • Road Glide Custom CVO/SE - FLTRXSE 2012
  • Road Glide Custom CVO/SE - FLTRXSE 2 2013
  • Road Glide CVO/SE - FLTRSE 3 2009
  • Road Glide CVO/SE - FLTRXSE 2018-2019
  • Road Glide Injected - FLTR I 1999-2006
  • Road Glide Injected CVO/SE - FLTRSE I 2000
  • Road Glide Injected CVO/SE - FLTRSE I 2 2001
  • Road Glide Limited - FLTRK 2020
  • Road Glide Special - FLTRXS 2015-2020
  • Road Glide Ultra - FLTRU 2011-2013, 2016-2019
  • Road Glide Ultra CVO/SE - FLTRUSE 2011, 2015-2016
  • Road King - FLHR 1999-2006, 2009-2020
  • Road King (EFI) - FLHR 2007-2008
  • Road King Classic - FLHRC 2009-2013
  • Road King Classic (EFI) - FLHRC 2007-2008
  • Road King Classic Injected - FLHRC I 1999-2006
  • Road King Custom - FLHRS 2004-2006
  • Road King Custom (EFI) - FLHRS 2007
  • Road King Custom Injected - FLHRS I 2004-2006
  • Road King CVO/SE - FLHRSE 2014
  • Road King CVO/SE - FLHRSE 5 2013
  • Road King CVO/SE (EFI) - FLHRSE 3 2007
  • Road King CVO/SE (EFI) - FLHRSE 4 2008
  • Road King Injected - FLHR I 1999-2006
  • Road King Injected CVO/SE - FLHRSE I 2002
  • Road King Injected CVO/SE - FLHRSE I 2 2003
  • Road King Special - FLHRXS 2017-2020
  • Softail Blackline - FXS 2011-2013
  • Softail Breakout - FXBR 2018-2019
  • Softail Breakout - FXSB 2013-2017
  • Softail Breakout 114 - FXBRS 2018-2020
  • Softail Breakout CVO/SE - FXSBSE 2013-2014
  • Softail Convertible CVO/SE - FLSTSE 2010
  • Softail Convertible CVO/SE - FLSTSE 2 2011
  • Softail Convertible CVO/SE - FLSTSE 3 2012
  • Softail Cross Bones - FLSTSB 2009-2011
  • Softail Cross Bones (EFI) - FLSTSB 2008
  • Softail Custom - FXSTC 2009-2010
  • Softail Custom (EFI) - FXSTC 2007-2008
  • Softail Deluxe - FLDE 2018-2020
  • Softail Deluxe - FLSTN 2005-2006, 2009-2017
  • Softail Deluxe (EFI) - FLSTN 2007-2008
  • Softail Deluxe CVO/SE - FLSTNSE 2014-2015
  • Softail Deluxe Injected - FLSTN I 2005-2006
  • Softail Deuce - FXSTD 2000-2006
  • Softail Deuce (EFI) - FXSTD 2007
  • Softail Deuce Injected - FXSTD I 2001-2006
  • Softail Deuce Injected CVO/SE - FXSTDSE 2003
  • Softail Deuce Injected CVO/SE - FXSTDSE 2 2004
  • Softail Fat Bob - FXFB 2018-2019
  • Softail Fat Bob 114 - FXFBS 2018-2020
  • Softail Fat Boy - FLFB 2018-2019
  • Softail Fat Boy - FLSTF 2000-2006, 2009-2017
  • Softail Fat Boy (EFI) - FLSTF 2007-2008
  • Softail Fat Boy 114 - FLFBS 2018-2020
  • Softail Fat Boy Injected - FLSTF I 2001-2006
  • Softail Fat Boy Injected CVO/SE - FLSTFSE 2005
  • Softail Fat Boy Injected CVO/SE - FLSTFSE 2 2006
  • Softail Fat Boy Lo - FLSTFB 2010-2016
  • Softail Fat Boy S - FLSTFBS 2016-2017
  • Softail FXDR 114 - FXDRS 2019-2020
  • Softail Heritage Classic - FLHC 2018-2020
  • Softail Heritage Classic 114 - FLHCS 2018-2020
  • Softail Low Rider - FXLR 2018-2020
  • Softail Low Rider S - FXLRS 2020
  • Softail Night Train - FXSTB 2000-2006, 2009
  • Softail Night Train (EFI) - FXSTB 2007-2008
  • Softail Night Train Injected - FXSTB I 2001-2006
  • Softail Pro Street Breakout CVO/SE - FXSE 2016-2017
  • Softail Slim - FLS 2012-2017
  • Softail Slim - FLSL 2018-2020
  • Softail Slim S - FLSS 2016-2017
  • Softail Sport Glide - FLSB 2018-2020
  • Softail Springer - FXSTS 2000-2006
  • Softail Springer Classic - FLSTSC 2005-2006
  • Softail Springer Classic (EFI) - FLSTSC 2007
  • Softail Springer Classic Injected - FLSTSC I 2005-2006
  • Softail Springer CVO/SE (EFI) - FXSTSSE 2007
  • Softail Springer CVO/SE (EFI) - FXSTSSE 2 2008
  • Softail Springer Injected - FXSTS I 2001-2006
  • Softail Standard - FXST 2000-2006
  • Softail Standard (EFI) - FXST 2007
  • Softail Standard Injected - FXST I 2001-2006
  • Softail Street Bob - FXBB 2018-2020
  • Sportster 1200 Iron - XL 1200NS 2018-2020
  • Sportster Custom - XL 1200C 2014-2019
  • Sportster Forty-Eight - XL 1200X 2014-2020
  • Sportster Forty-Eight Special - XL 1200XS 2018-2019
  • Sportster Iron - XL 883N 2014-2020
  • Sportster Roadster - XL 1200CX 2016-2020
  • Sportster Seventy Two - XL 1200V 2014-2016
  • Sportster Superlow - XL 1200T 2014-2017
  • Sportster SuperLow - XL 883L 2014-2019
  • Street Bob Injected - FXDB I 2006
  • Street Glide - FLHX 2006, 2009-2020
  • Street Glide (EFI) - FLHX 2007-2008
  • Street Glide CVO/SE - FLHXSE 2010, 2015-2020
  • Street Glide CVO/SE - FLHXSE 2 2011
  • Street Glide CVO/SE - FLHXSE 3 2012
  • Street Glide Injected - FLHX I 2006
  • Street Glide Special - FLHXS 2014-2020
  • Street Glide Trike - FLHXXX 2010-2011
  • Tri Glide Ultra Classic - FLHTCUTG 2009-2020
  • Tri-Glide CVO/SE - FLHTCUTGSE 2020
Reviews & Questions
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Browse 4 questions Browse 4 questions and 18 answers
How many miles between oil changes with the this oil filter?
Greg C on Oct 28, 2016
BEST ANSWER: I change my filter with my oil every 5000 miles. I just turned 77,000 miles and my Softail Heritage still runs great.
Has anyone checked the microns this filter is rated to separate micro particles left in the oil ? And, how does it compare to the other K&N oil filters, or are they all rated the same ?Thanks !
Con G on Sep 30, 2017
BEST ANSWER: They don't wanna tell you that and % Of flow with micron size you get what you pay for and remember if you have to ask for the specs the staff more times then not know either but we sell lots of them good sales pitch Right? Blabla..
Will it capture 5 or 10 micron size particles?
A shopper on May 22, 2019
BEST ANSWER: Don’t know but I trust K&N, they’re the best.
How many spark plugs does a 2003 Fatboy 1400 have?
A shopper on Dec 16, 2018
BEST ANSWER: 2
4.8 / 5.0
46 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
41
3
1
1
0
Finish
4.9 / 5
Fit
4.9 / 5
Quality
4.9 / 5
Style
4.7 / 5
Value
4.6 / 5
Would you recommend this product?
Yes (19)
No (1)
Fit
5 / 5
Quality
5 / 5
Style
4 / 5
Value
5 / 5
ONLY OIL FILTERS THAT I WILL USE
I HAVE RESEARCHED MANY DIFFERENT TYPES OF OIL FILTERS AND SETTLED ON K&N FILTERS FOR ALL MY OIL FILTERING NEEDS. filtering AT UP TO 10 MICRONS, GIVES YOU THE MOST PROTECTION NOW AVAILABLE.
October 23, 2009
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
K&N
Once again K&N makes a top product that looks great, has reasonable pricing, easy put on and take off, and has the reliabilty of working better than the competiton. Trust your Harley with K&N products and you will not be disappointed !

Pendragon of Colorado
October 8, 2009
12ULTRALIMITED
K&N is a very good product. Nice chrome finish. Easy on and easy off. Anyone who owns a touring model knows the benefits of having that nut on the end.
October 3, 2015
Farmville, VA
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
K&N oil filkter
I have trusted K&N for years and have the Screamin' Eagle Heavy breather on my Road King. This is an excellent filter and the ease of removal makes it a no brainer.
October 26, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
4 / 5
No Review Title Entered By User
Switched to this K&N Oil filter like the looks and performance of this over any other filter out there. Plus easy to install and remove with the 17mm nut.Great product goes well with the K&N Air filters.
February 3, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
K&N, still on Top
I use K&N for my cars, it ranks at the top in every and any article I have read. I was happy to find out that they had a product for my Wide Glide. I'll take well tested quality over high priced "branded" piece. MUCH easier to deal with in installing and removal, especially removal!!!! Looks good, too.
June 5, 2015
Purchased
over 5 years ago
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
4 / 5
Love the Nuts !
Very good product , makes removing this filter a breeze !!! As all K&N products this is built very well . I will never go back to a filter wrench type again.
August 3, 2012
Fit
5 / 5
Quality
5 / 5
Style
4 / 5
Value
3 / 5
Quality, Safety and Convenience
A quality, reliable product, and the added convenience of the 17mm end nut makes removal easy and safe, virtually eliminating any concern of damaging nearby hardware and wiring on Harley-Davidson motorcycles.
December 21, 2009
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Great filter
nut is great to ease of install. Good looking filter in chrome
December 9, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
K & N Chrome Oil Filter
This is the only brand I ever use on my motorcycles.
June 20, 2011
O'Fallon, MO