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.

You can go the K&N webpage (link below) for this particular filter. There is a fitment guide there. According to that website this will fit a 2010 Fat Bob and several others.

does this filter a kn171b replace a 63798-99A

The 63798-99A would cross-reference to the K&N KN-171B Oil Filter.

Can I use this filter on my 2019 fatboy 107?

Not sure. A 2002 Lexus 300 SUV is the same filter as this I do know.

Will this work on a2016 wide glide 103 engine

This fit the 103 Harley Twin I have. Ultimately, put your make and model into your garage in Amazon and it will let you know if it applies. I suspect it will fit all 103 engines.

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K&N Motorcycle Oil Filter: High Performance, KN-171B

K&N Motorcycle Oil Filter: High Performance, KN-171B

Product ID: 3981525

Details

Brand
K&N
Item dimensions L x W x H
4 x 3 x 3
Material
(Filter Media)
Product Grade
Performance
Vehicle Service Type
Motorcycle

🔧17mm welded hex nut for quick wrench-off removal

⚙️High flow rate for peak engine performance

🛡️Heavy-duty canister ensures maximum durability

₨13216

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Description

🛵 Ride Clean, Ride Mean: The Ultimate Oil Filter Upgrade for Harley Legends

BUILT TO LAST - Heavy-duty steel/aluminum housing withstands tough rides and longer service intervals without compromise.
TRUSTED BY PROS - Laboratory tested for burst strength and backed by a 1-year limited warranty—ride with confidence.
EFFORTLESS MAINTENANCE - Fast, wrench-off removal with a durable 17mm welded hex nut—no more struggling with filters.
UNIVERSAL OIL COMPATIBILITY - Seamlessly works with synthetic, conventional, and blended oils, including high-performance racing blends.
UNMATCHED ENGINE PROTECTION - Pleated synthetic-blend media traps harmful contaminants, extending engine life.

The K&N KN-171B Motorcycle Oil Filter delivers exceptional oil flow and superior filtration using advanced synthetic-blend media. Engineered for Harley Davidson motorcycles, it features a rugged steel/aluminum canister and a 17mm welded hex nut for quick removal. Compatible with all oil types and designed to endure extended service intervals, this filter is lab-tested for durability and backed by a 1-year warranty, making it the go-to choice for riders demanding peak engine protection and hassle-free maintenance.

Specifications

ASIN	B000FGI6E6
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#1,699 in Automotive ( See Top 100 in Automotive ) #2 in Powersports Oil Filters
Brand	K&N
Brand Name	K&N
Compatible with Vehicle Type	Motorcycle
Customer Reviews	4.8 out of 5 stars 6,351 Reviews
Global Trade Identification Number	00024844087737
Included Components	OIL FILTER; POWERSPORTS; CANISTER BLACK
Item Dimensions	4 x 3 x 3 inches
Item Type Name	OIL FILTER; POWERSPORTS; CANISTER BLACK
Item Weight	9.6 ounces
Item dimensions L x W x H	4 x 3 x 3 inches
Manufacturer	K&N Engineering
Manufacturer Part Number	KN-171B
Manufacturer Warranty Description	LIMITED WARRANTY
Material	Synthetic-Blend (Filter Media), Steel/Aluminum (Housing)
Material Type	Synthetic-Blend (Filter Media), Steel/Aluminum (Housing)
Model Number	KN-171B
Number of Items	1
Number of Packs	1
OEM Equivalent Part Number	KN-171B
Outside Diameter	2.91 inches
Part Interchange Info	Fits Select Harley Davidson Motorcycles: Compatible with the listed Harley Davidson motorcycle models. No information provided about compatibility with other makes or models.
Product Grade	Performance Part
Thread Size	M17 x 1.5
UPC	759173941725 182683047043 024844087737
Unit Count	1 Count
Vehicle Service Type	Motorcycle

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₨13216

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Sri Lanka.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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