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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

K&N Motorcycle Oil Filter: High Performance, Wrench Off Nut, 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

🔧Integrated wrench-off nut for quick changes

⚙️High-efficiency synthetic filter media

🛡️20,000 miles long-life protection

177 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

Secure transaction

Description

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

EFFORTLESS MAINTENANCE - Built-in wrench-off nut slashes oil change time—because your ride deserves speed and ease.
TAILORED FIT FOR HARLEY - Direct factory replacement designed specifically for 1999-2024 Harley Davidson models—no guesswork, just perfect fit.
UNMATCHED ENGINE DEFENSE - Up to 20,000 miles of premium protection keeps your Harley roaring longer.
PRECISION FILTRATION TECH - Advanced synthetic media with uniform pleats ensures max oil flow and superior engine cleanliness.
PERFORMANCE OPTIMIZED VALVE - Part number-specific bypass valve engineered for high-end synthetic oils, maximizing engine efficiency.

The K&N KN-171B Motorcycle Oil Filter delivers up to 20,000 miles of engine protection with premium synthetic filter media and a heavy-duty design. Featuring an integrated wrench-off nut for fast oil changes and a part-specific bypass valve optimized for synthetic oils, it fits select 1999-2024 Harley Davidson motorcycles, ensuring a direct factory replacement that enhances engine performance and longevity.

Specifications

ASIN	B000FGI6E6
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#1,687 in Automotive ( See Top 100 in Automotive ) #2 in Powersports Oil Filters
Brand Name	K&N
Compatible with Vehicle Type	Motorcycle
Customer Reviews	4.8 4.8 out of 5 stars (6,387)
Global Trade Identification Number	00024844087737
Included Components	OIL FILTER; POWERSPORTS; CANISTER BLACK
Item Dimensions	4 x 3 x 3 inches
Item Highlight	Fits Select 1999-2024 HARLEY DAVIDSON: FLFBS Fat Boy 114/Sport Glide/Road King Special/Street Glide (See Product Description)
Item Type Name	OIL FILTER; POWERSPORTS; CANISTER BLACK
Item Weight	9.6 ounces
Manufacturer	K&N Engineering
Manufacturer Part Number	KN-171B
Manufacturer Warranty Description	LIMITED WARRANTY
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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

177 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Ravi S.

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

2 months ago

View all Trustpilot reviews