K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils, Wrench Off Nut: Fits Select Harley Davidson Motorcycles, KN-171B
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K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils, Wrench Off Nut: Fits Select Harley Davidson Motorcycles, KN-171B

4.8/5
Product ID: 3981525
Secure Transaction
12 interest-free installments with tabby

Details

  • Brand
    K&N
  • Product Grade
    Performance
  • Vehicle Service Type
    Motorcycle
  • Item dimensions L x W x H
    4 x 3 x 3
  • Outside Diameter
    2.91 Inches
🔧Wrench-Off nut for effortless removal
⚙️High flow rate for peak engine performance
🛡️Pleated synthetic-blend media traps harmful contaminants

Description

🛵 Ride Clean, Ride Confident: The Filter Your Harley Deserves

  • BUILT TO ENDURE - Heavy-duty canister construction ensures durability through the toughest rides.
  • ENGINE ARMOR FILTRATION - Advanced pleated media captures contaminants before they can damage your ride.
  • QUICK RELEASE CONVENIENCE - Wrench-Off nut design means no-fuss filter changes—get back on the road faster.
  • UNMATCHED FLOW EFFICIENCY - Delivers exceptional oil flow to keep your engine running smoother, longer.
  • UNIVERSAL OIL COMPATIBILITY - Optimized for synthetic, conventional, and blended oils—flexibility that fits your lifestyle.

The K&N KN-171B Motorcycle Oil Filter is a premium, high-performance filter engineered for select Harley Davidson motorcycles. Featuring a heavy-duty canister and pleated synthetic-blend filtration media, it ensures superior contaminant removal and consistent high flow rates. Compatible with synthetic, conventional, and blended oils, it supports extended service intervals and includes a convenient wrench-off nut for easy removal. Tested for durability and backed by a 1-year limited warranty, this filter is designed to protect and enhance your engine’s longevity.

Specifications

BrandK&N
Product GradePerformance Part
Vehicle Service TypeMotorcycle
Item dimensions L x W x H4 x 3 x 3 inches
Outside Diameter2.91 Inches
Thread SizeM17 x 1.5
Item Weight0.6 Pounds
OEM Part NumberKN-171B
Global Trade Identification Number00024844087737
ManufacturerK&N Engineering
Number of Items1
UPC759173941725 182683047043 024844087737
ModelOil Filter
Item Weight9.6 ounces
Product Dimensions4 x 3 x 3 inches
Country of OriginUSA
Item model numberKN-171B
Is Discontinued By ManufacturerYes
ExteriorOther
Manufacturer Part NumberKN-171B
Safety RatingNão Aplicável

Have a Question? See What Others Asked

Amazon needs to fix the fact that this filter does in fact, fit a 2018 harley davidson fat bob fxfb... cuz i use it all the time.
does this filter a kn171b replace a 63798-99A
Can I use this filter on my 2019 fatboy 107?
Will this work on a2016 wide glide 103 engine

Reviews

4.8

All from verified purchases

D**J

Top Quality Filters ! The nut is for removal ONLY !

I have been using K&N filters for my motorcycles for over 40 years. They have never let me down. Pro Tip: the 17mm nut on the filter is for REMOVAL ONLY ! Do not use the nut to tighten the filter. If I can't get it tight enough by hand I use a strap wrench on my Harley to tighten the filter.

A**K

Yes

Super convenient

B**N

Perfect

Perfect. Why doesn’t everyone use these?

T**G

Fits 18-23 Harley m8 engines easy on/off Good quality filter

K&N quality filter. Fits all Harley m8 engine 2018-2023 m8 engine. I change every season or 3-4k mi on HD

R**.

Perfect fit

Made changing oil on my Harley easier.

J**R

Harley oil filter

Quality Product

R**R

👍

👍

H**R

Highest quality oil filter

Perfect fit, great quality

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Secure Transaction
12 interest-free installments with tabby

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

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