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🛠️ Upgrade your ride’s heart with K&N — because every mile counts.
The K&N KN-171C Motorcycle Oil Filter delivers up to 20,000 miles of reliable engine protection using premium synthetic filter media. Designed as a direct factory replacement for select 1994-2024 Harley Davidson and Buell motorcycles, it features a high-efficiency filtration system and an integrated wrench-off nut for fast, hassle-free oil changes. Tested for burst strength and optimized for synthetic oils, this steel-constructed filter ensures durable, high-performance operation trusted by thousands of riders.
| ASIN | B000E28C7M |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,885 in Automotive ( See Top 100 in Automotive ) #3 in Powersports Oil Filters |
| Brand | K&N |
| Brand Name | K&N |
| Compatible with Vehicle Type | Motorcycle |
| Customer Reviews | 4.8 out of 5 stars 7,623 Reviews |
| Global Trade Identification Number | 00024844087232 |
| Included Components | Oil filter |
| Item Dimensions | 3.2 x 3.2 x 4.1 inches |
| Item Highlight | Fits Select 1994-2024 BUELL/HARLEY DAVIDSON: S3T Thunderbolt/M2 Cyclone/Street Bob 114/Road King (See Product Description) |
| Item Type Name | Oil Filter |
| Item Weight | 11.2 ounces |
| Item dimensions L x W x H | 3.2 x 3.2 x 4.1 inches |
| Manufacturer | K&N Filters |
| Manufacturer Part Number | KN-171C |
| Manufacturer Warranty Description | 1 Year |
| Material | steel |
| Material Type | steel |
| Model Number | KN-171C |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | KN-171C |
| Outside Diameter | 2.91 inches |
| Product Grade | Performance Part |
| Thread Size | 17mm |
| UPC | 024844087232 |
| Unit Count | 1 Count |
| Vehicle Service Type | Motorcycle |
S**H
Better filter than what was available at Harley or an auto part store.
Perfect fit for my 17' ultra limited, has the nut on the filter for easy removal and install. Chrome looks good and was a better value that any auto part store. The o-ring seal seems pretty flexible as well.
M**J
Top-Notch Performance and Easy to Install
The K&N KN-171C Motorcycle Oil Filter is a fantastic upgrade. You can tell right away it’s built with quality in mind. It works perfectly with both synthetic and conventional oils, and I’ve had zero issues with performance. The wrench-off nut is a game changer—it makes installation and removal incredibly easy, especially compared to standard filters. No slipping or struggling, which saves time and hassle. Fitment was spot-on for my bike, and it feels secure and reliable once installed. K&N definitely delivers on durability and performance with this one. Overall, a high-quality oil filter that’s easy to use and built to last. Highly recommend!
M**E
Great filter!
It's going to be so easy to change out this filter next spring!
A**N
They work very well
I’ve been running these filters since 2006 on my Harley Davidson, motorcycles and later that year I start running on all my pick ups and cars as well. They did so well such a good quality filter. I look at as cheap Insurance to motor issues later… I hope they continue to make in the 🇺🇸 USA . I walked away from companies for betraying us to China… keep up the good work 😎
J**S
Great up grade from stock!
Very nice product
2**H
Easy install.
Works like designed.
J**.
Professional BB cap
Very nice Whitecap Hat...got it for grandson's KC Team. It is not a flat cheap hat. Would def. buy again. Go KC Whitecaps!!! John H.
N**E
Quality part
Hard to say much about it except K&N filters are well-made and fit properly. I love the nut on the end to help get it off if needed. These are a quality part.
P**P
Definitely recommended
I've been using K&N oil filters on my Harley Davidson bikes forever. In fact I mainly use K&N on all my bikes when possible. I presently have 11 motorcycles. I've never had any issues with these filters. I really like that they have the hex head so you can use a wrench or socket for removal. And the hex is drilled for safety wire. I started using K&N mainly for that reason alone. I use safety wire on my Harleys, (apparently they vibrate just a little) and my track bikes. They may not be the cheapest filters available, but this is a product you don't want to have the cheapest one going. You get what you pay for.
E**S
Tevreden
Correcte en snelle service
S**A
Ajuste perfecto
Perfecta para una Harley Electra Glide
A**O
Sehr gute K&N-Qualität
Bei Luftfiltern geht nichts über K&N. Super Qualität!
D**S
Filtre
Au top super pratique pour changer les filtres
Trustpilot
2 weeks ago
1 day ago