K&N KN-171B Black Oil Filter - Harley-Davidson Touring, Softail, Dyna
About K&N
K&N pioneered the washable, reusable cotton-gauze air filter and has been building intake products since 1969. On a V-twin, an intake swap is usually step one of the classic uncork — filter, exhaust, then tune.
The K&N KN-171B oil filter in a black finish is engineered with advanced synthetic pleated media, specifically designed to handle synthetic and synthetic-blend oils at high flow rates. Its heavy-duty canister construction, complete with an anti-drain-back valve, ensures your Harley-Davidson Touring, Softail, or Dyna motor runs clean without sacrificing crucial oil pressure.
Why riders pick this
- High-flow synthetic media for synthetic oils
- 17mm hex nut for easy installation and removal
- Anti-drain-back valve prevents dry starts
- Pressure relief valve protects against over-pressure
- Heavy-duty canister with double-rolled seal
- Pre-lubed base gasket for optimum seal
For Harley-Davidson riders who demand peak performance and uncompromising engine protection, the K&N KN-171B oil filter is an essential upgrade. This filter excels at capturing contaminants while maintaining optimal oil flow, especially critical in V-twin engines running modern synthetic lubricants. The stealthy black finish integrates seamlessly with your bike's aesthetic.
Superior Filtration and Engine Safeguards
- Features synthetic pleated media for exceptional high-flow rates
- Equipped with a convenient 17mm hex nut for easy wrench-on and wrench-off installation
- An anti-drain-back valve prevents dry starts, protecting vital engine components
- A pressure relief valve guards against over-pressure conditions
- Comes with a pre-lubed base gasket for an optimum seal upon installation
Designed for the Demands of Your Harley
The K&N KN-171B oil filter is more than just a replacement part; it's a performance component. The heavy-duty canister with its double-rolled seal provides enhanced durability, while the TÜV production monitoring ensures consistent quality. This filter is built to protect your Harley-Davidson's engine through every mile, making it a smart choice for routine maintenance and performance-minded riders alike.
Specifications
- Brand: K&N
- Manufacturer Part #: KN-171B
- UPC: 024844087737
- Finish: Black
- Length: 3 in
- Width: 3 in
- Height: 4.3 in
- Weight: 0.8 lbs
- Country of Origin: Thailand
Common questions
What makes this K&N filter suitable for synthetic oils?
The synthetic pleated media in the KN-171B is specifically engineered to maintain high flow rates while effectively filtering the concentrated additives found in full synthetic and synthetic-blend motor oils.
Is installation a simple process, or does it require special tools?
Installation is designed to be straightforward. The filter features a 17mm hex nut, allowing for easy wrench-on and wrench-off installation without the need for a specialized filter wrench.
What Harley-Davidson models does this K&N KN-171B filter fit?
This filter is designed for a wide range of Harley-Davidson models, including many Touring, Softail, and Dyna platforms. Please consult our Shop by Bike feature to confirm exact fitment for your specific year and model.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | K&N |
| TYPE | Oil Filters |
| SKU | 56-0171 |
| WEIGHT | 0.8 lb |
