K&N Aircharger Replacement Air Filter Element - Harley 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.
Keep your K&N Aircharger intake system performing at its best with a genuine K&N replacement air filter element. This high-flow cotton-gauze element is engineered to maintain the increased airflow and power gains your V-twin demands. It's an essential maintenance item for riders pushing their Harley-Davidson.
Why riders pick this
- High-flow cotton-gauze construction
- Direct replacement for K&N Aircharger intakes
- Washable and reusable for long-term value
- Maintains optimal engine airflow and power
When you've invested in a K&N Aircharger Performance Intake System for your Harley-Davidson, you want to ensure it continues to deliver optimal performance. This replacement filter element is specifically designed to fit those systems, restoring your bike's ability to breathe freely and maintain the power you've come to expect. Don't compromise on filtration or airflow; choose the element built for your K&N setup.
Restore Peak Performance
- High-flow cotton-gauze filter element for maximum air delivery
- Engineered as a direct replacement for K&N Aircharger intake systems
- Washable and reusable design extends service life
- Maintains consistent filtration without restricting power
Smart Maintenance for Your V-Twin
Regular maintenance of your air filter is crucial for the longevity and performance of your Harley-Davidson. Swapping in a fresh K&N element ensures your engine is protected while still getting the unrestricted airflow it needs. This is a straightforward upgrade that keeps your existing performance intake system operating efficiently, pairing well with other routine service items.
Specifications
- Brand: K&N
- Manufacturer Part #: RC-3680
- UPC: 024844033567
- Length: 4.62 in
- Width: 4.62 in
- Height: 7.25 in
- Weight: 0.79 lbs
Common questions
Is this a complete intake system or just the filter element?
This product is the replacement filter element only, designed to fit existing K&N Aircharger intake systems already installed on your Harley-Davidson.
How often should I clean and re-oil this filter?
Inspect the filter element with every oil change. Clean it when visibly dirty using a K&N filter service kit. The typical service interval is every 50,000 miles under normal riding conditions.
Will this filter fit my stock Harley-Davidson airbox?
No, this filter element is specifically designed for K&N Aircharger intake kits and will not fit stock Harley-Davidson air cleaner assemblies.
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 | Air Filters |
| SKU | 783680 |
| WEIGHT | 0.79 lb |
