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- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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Description
K&N Intake System-Harley Davidson (RK-3947)The K&N RK 3947 High Flow Air Intake System increases engine intake airflow and delivers more horsepower & torque to many Harley Davidson FLT and FLH model motorcycles. The intake system increases power by eliminating the stock OE air cleaner and replacing it with a complete High Flow Air Intake System. The intake system comes with a K&N air filter for high air flow and long service intervals. The K&N high flow air filter is washable, reusable, pre
The K&N RK-3947 High-Flow Air Intake System increases engine intake airflow and delivers more horsepower & torque to many Harley-Davidson FLT and FLH model motorcycles. The intake system increases power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake System. The intake system comes with a K&N air filter for high air flow and long service intervals. The K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation.- Guaranteed increase in horsepower
- Replaces the stock air filter and cleaner backing plate assembly
- Washable, oversized K&N high-flow air filter for long service interval
- Oversized black, powder coated aluminum backing plate provides solid mounting
- Dyno tuned velocity stack directs airflow to engine
- Built in breathers replace external OE breathers
- Includes K&N Million Mile Limited Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Good starter
Style: 23300-7S000
It is good product. It is cheaper than local store, and it work great after installed.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
an exact replacement as far as I can tell
Style: 12611103
Exact fit, easy to install, still works after several weeks.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
It’s worth
Arrive on time and working well 👍🏾
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Perfectly good starter
Style: S114-823S
Though I'm sure this was a good starter it looked great I'm sure it would have worked perfectly however because of some problems with my engine and bolts being stripped out in my motor I had to return it but there was nothing wrong with the starter just wouldn't fit
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Great Starter
The car is starting great now.
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Reviewed in the United States on May 2, 2026