What types of oil can I use with this K&N oil filter?

This K&N oil filter is designed to be compatible with a variety of oil types. You can use synthetic, petroleum-based, and blended oils, including those with high concentrations of synthetic racing oils.

How does the 17mm hex nut help with installation or removal?

The 17mm hex nut is welded to the top of the filter canister, providing a convenient point for removal. It allows you to use a standard socket or wrench for a quick and easy spin-off, often making the process simpler than with filters that only have knurled edges.

What is the warranty on this oil filter?

This K&N oil filter comes with a K&N 1-Year Limited Warranty. This warranty covers defects in materials and workmanship for one year from the date of purchase.

K&N Oil Filter Black 3in OD x 4.063in H KN-171B

Name: K&N Harley-Davidson / Buell 3in OD x 4.063in H Black Oil Filter
Brand: K&N
Price: 17.99 USD
Availability: InStock

K&N Harley-Davidson / Buell 3in OD x 4.063in H Black Oil Filter

$17.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

K&N black oil filter, part# KN-171B. Features a synthetic-blend media and a 17mm hex nut for easy removal. Fits many Harley-Davidson and Buell models.

Key Features

Fits a wide range of Harley-Davidson and Buell motorcycles.
Features a synthetic-blend filtration media compatible with synthetic, petroleum-based, and blended oils.
Heavy-duty canister construction for durability.
Includes a 17mm welded hex nut for easy removal with a socket or wrench.
Engineered for high flow rates while providing protection from engine contaminants.
Backed by a K&N 1-Year Limited Warranty.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

This is the K&N KN-171B oil filter, a well-built option for a wide range of Harley-Davidson and Buell motorcycles. It's designed to work with various oil types, including synthetic and petroleum blends, ensuring it can handle whatever you're running in your engine. Keeping your engine oil clean is crucial for longevity, and this filter helps trap contaminants effectively.

What sets this filter apart is its construction. It uses a synthetic-blend filtration media that's made to handle high flow rates, which is important for keeping your engine properly lubricated, especially during demanding use. The canister itself is built to be tough, and K&N includes a 17mm hex nut welded right onto the top. This makes removing the old filter much easier than with standard spin-on filters, often just needing a socket or wrench.

This filter is a solid option for many Harley-Davidson models like the Road King, Electra Glide, and Fat Boy, as well as various Buell bikes such as the Lightning and Thunderbolt. It's backed by K&N's 1-Year Limited Warranty, giving you some peace of mind with your purchase.