--- product_id: 130614319 title: "K&N RK-3947 K&N Engineering, Inc. Intake System (Harley Davidson)" brand: "k&n" price: "€ 880.56" currency: EUR in_stock: true reviews_count: 3 category: "K&N" url: https://www.desertcart.gr/products/130614319-k-and-n-rk-3947-k-and-n-engineering-inc store_origin: GR region: Greece --- # Washable & reusable high-flow filter Boosts horsepower & torque Vehicle-specific precision fit K&N RK-3947 K&N Engineering, Inc. Intake System (Harley Davidson) **Brand:** k&n **Price:** € 880.56 **Availability:** ✅ In Stock ## Summary > 🏍️ Elevate your ride with power and style that commands attention ## Quick Answers - **What is this?** K&N RK-3947 K&N Engineering, Inc. Intake System (Harley Davidson) by k&n - **How much does it cost?** € 880.56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/130614319-k-and-n-rk-3947-k-and-n-engineering-inc) ## Best For - k&n enthusiasts ## Why This Product - Trusted k&n brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unleash Raw Power:** Guaranteed horsepower & torque increase for your Harley-Davidson - • **Endless Performance:** Washable, reusable K&N high-flow filter for longer service intervals - • **Sleek & Durable Design:** Oversized powder-coated aluminum backing plate for solid, stylish mounting - • **Precision Engineered Fit:** Custom-designed to replace stock air filter and backing plate seamlessly - • **Optimized Airflow Dynamics:** Dyno-tuned velocity stack directs maximum airflow to your engine ## Overview The K&N RK-3947 Intake System is a high-performance upgrade for Harley-Davidson FLT and FLH models, delivering increased horsepower and torque by replacing the stock air intake with a washable, reusable high-flow filter and a durable powder-coated aluminum backing plate. Dyno-tuned for optimal airflow, it ensures longer service life and a precision fit, making it the ultimate choice for riders seeking both performance and style. ## Description 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 RK-3947 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. Review: Classy - What a classy addition to my ultra classic! It's clean lines and mirror like shine is awesome! It definitely gives my 96 cube a bit aid a bottom end boost also. Review: Really Does the trick - I put this on my 2012 Street Glide. Also put on the K&N Fuel Pack FP3 to tune the bike. You can hear this sucking in the air when you roll on it. Definitely picked up my performance. Only gave 4 stars because the chrome top plate is not perfect. You can't see it in the picture, but at an angle yo can see it is not perfectly flat. There appear to be some ripples in it. Not desertcart's fault. I'm going to check with K&N and see if they'll send a replacement. ## Features - Guaranteed increase in horsepower - Replaces the stock air filter and cleaner backing plate assembly - Washable, oversized K&N high-flow air filter equals longer life - Oversized black, Powder coated aluminum backing plate provides solid mounting - Dyno Tuned velocity stack directs airflow to engine ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01JFLY2MG | | Brand | K&N | | Brand Name | K&N | | Customer Reviews | 4.6 out of 5 stars 7 Reviews | | Fit Type | Vehicle Specific Fit | | Global Trade Identification Number | 00024844363459 | | Included Components | Air filter^Back plate^Cover^Velocity stack^Literature pack^Part kit | | Item Dimensions L x W x H | 11.81"L x 9.45"W x 2.13"H | | Item Type Name | K&N RK-3947 Intake System-Harley Davidson | | Item Weight | 4.09 Pounds | | Manufacturer | K&N Engineering | | Manufacturer Part Number | RK-3947 | | Manufacturer Warranty Description | 12 Months | | Model Number | RK-3947 | | Number of Items | 1 | | OEM Equivalent Part Number | RK-3947 | | OEM Part Number | RK-3947 | | Product Dimensions | 11.81"L x 9.45"W x 2.13"H | | Product Grade | Leistungsteil | | UPC | 024844363459 | | Unit Count | 1 Count | ## Images ![K&N RK-3947 K&N Engineering, Inc. Intake System (Harley Davidson) - Image 1](https://m.media-amazon.com/images/I/618rY9EQeLL.jpg) ![K&N RK-3947 K&N Engineering, Inc. Intake System (Harley Davidson) - Image 2](https://m.media-amazon.com/images/I/61R5TQS+srL.jpg) ![K&N RK-3947 K&N Engineering, Inc. Intake System (Harley Davidson) - Image 3](https://m.media-amazon.com/images/I/41Il0dchdZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Classy *by C***. on January 20, 2018* What a classy addition to my ultra classic! It's clean lines and mirror like shine is awesome! It definitely gives my 96 cube a bit aid a bottom end boost also. ### ⭐⭐⭐⭐ Really Does the trick *by R***R on September 22, 2019* I put this on my 2012 Street Glide. Also put on the K&N Fuel Pack FP3 to tune the bike. You can hear this sucking in the air when you roll on it. Definitely picked up my performance. Only gave 4 stars because the chrome top plate is not perfect. You can't see it in the picture, but at an angle yo can see it is not perfectly flat. There appear to be some ripples in it. Not Amazon's fault. I'm going to check with K&N and see if they'll send a replacement. ### ⭐⭐⭐⭐⭐ J&M CB hand mike *by S***I on August 28, 2017* J&M CB hand mike --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/130614319-k-and-n-rk-3947-k-and-n-engineering-inc](https://www.desertcart.gr/products/130614319-k-and-n-rk-3947-k-and-n-engineering-inc) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-09-20*