---
product_id: 256334749
title: "K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952"
brand: "k&n"
price: "€ 722.30"
currency: EUR
in_stock: true
reviews_count: 5
category: "K&N"
url: https://www.desertcart.hr/products/256334749-k-and-n-cold-air-intake-system-high-flow-air
store_origin: HR
region: Croatia
---

# High-flow washable cotton filter Boosts throttle response & acceleration Cast aluminum housing for durability K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952

**Brand:** k&n
**Price:** € 722.30
**Availability:** ✅ In Stock

## Summary

> 🏍️ Ride louder, faster, and smarter with K&N’s cold air intake!

## Quick Answers

- **What is this?** K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 by k&n
- **How much does it cost?** € 722.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/256334749-k-and-n-cold-air-intake-system-high-flow-air)

## 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:** Engineered to amplify throttle response and acceleration for that instant adrenaline rush.
- • **Seamless Fit & Flow:** Integrated internal velocity stack optimizes airflow for maximum efficiency.
- • **Sonic Signature Upgrade:** Enhances your Harley’s engine sound, turning heads wherever you ride.
- • **Eco-Friendly Performance:** Washable and reusable K&N high-flow cotton filter saves money and reduces waste.
- • **Precision-Crafted Durability:** Cast aluminum intake housing ensures long-lasting performance with a sleek black finish.

## Overview

The K&N Cold Air Intake System (RK-3952) is a precision-engineered upgrade for 2008-2017 Harley Davidson models, featuring a durable cast aluminum housing and a washable high-flow cotton air filter. Designed to improve throttle response, acceleration, and engine sound, it delivers enhanced performance while offering reusable, eco-conscious filtration.

## Description

From the manufacturer WASHABLE, REUSABLE, AND ENGINEERED TO LAST K&N engine air filters are designed to be washable, reusable, and last for the life of your vehicle. The premium filter design incorporates multiple layers of proprietary cotton gauze media and a specially-engineered oil, originally designed for the demands of the racetrack, and now custom-engineered for your vehicle. Tested, proven, and trusted for over 50 years, millions of drivers rely on K&N air filters to help protect their engines from premature wear. ENGINEERED FOR PERFORMANCE Originally designed for high-performance on the racetrack, now custom-designed for your vehicle make and model. K&N air filters are tested on a SuperFlow flow bench to ensure increased airflow over a stock filter. View testing data for many K&N filters on individual product pages. PROTECTS YOUR ENGINE K&N’s state-of-the-art filter features thousands of microscopic cotton fibers, and an innovative design of layered, oiled cotton media helps to capture dirt and shield your engine from contaminants. Each filter design is tested in an ISO 5011 laboratory to ensure excellent filtration efficiency for outstanding engine protection. REDUCES WASTE Over 100 million disposable air filters and their packaging waste end up in landfills each year. Choosing a washable, reusable product that lasts for the lifespan of your vehicle helps to reduce unnecessary waste.

Review: Perfecto para Softail Deluxe '17 - Perfecto para Softail Deluxe '17 Intrucciones claras sobre como instalar, tener en cuenta que al modificar sobre un filtro stock, puede necesitar remapeo la moto Tambien recomiendo buscar el rain sock de la marca filter wears, ya que el que recomienda desertcart para esta publicacion le quedo corto
Review: Worth Every Dime - I replaced an Arlene Ness Big Sucker with this K&N and it was worth every dime. Way more air flow and a significantly noticeable increase in power. Instructions were a little vague but it wasn't that hard to figure out. Looks good and it gives the desired effect.

## Features

- Designed to improve throttle response and engine sound
- Cast aluminum high-volume, performance air intake housing in black
- Washable and reusable K&N High-Flow cotton air filter that provides outstanding performance and protection
- Integrated internal velocity stack
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BHB1W8M |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | 834,463 in Automotive ( See Top 100 in Automotive ) 2,213 in Motorbike Air Filters |
| Brand | K&N |
| Brand Name | K&N |
| Customer Reviews | 4.7 out of 5 stars 214 Reviews |
| Fit Type | Vehicle Specific Fit |
| Fit type | Vehicle Specific Fit |
| Global Trade Identification Number | 00024844367013, 02484436701300 |
| Included Components | 1 Air Filter |
| Item Dimensions L x W x H | 30.5L x 24.1W x 9.5H centimetres |
| Item Shape | Oval |
| Item Type Name | Intake System (Harley Davidson) |
| Item Weight | 1.76 kg |
| Manufacturer | K&N Engineering |
| Manufacturer Part Number | RK-3952 |
| Model Number | RK-3952 |
| Number of items | 1 |
| OEM Equivalent Part Number | 77-2557KP |
| OEM part number | 77-2557KP |
| Product Grade | Performance Part |
| Product dimensions | 30.5L x 24.1W x 9.5H centimetres |
| Product grade | Performance Part |
| UPC | 024844367013 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** K&N
- **Product dimensions:** 30.5L x 24.1W x 9.5H centimetres
- **OEM part number:** 77-2557KP
- **Global Trade Identification Number:** 02484436701300, 00024844367013
- **Shape:** Oval

## Images

![K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 - Image 1](https://m.media-amazon.com/images/I/61b6xYVjwZL.jpg)
![K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 - Image 2](https://m.media-amazon.com/images/I/61p8uFM3aEL.jpg)
![K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 - Image 3](https://m.media-amazon.com/images/I/61yXum4j04L.jpg)
![K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 - Image 4](https://m.media-amazon.com/images/I/511ZK7SlQ4L.jpg)
![K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 - Image 5](https://m.media-amazon.com/images/I/6140bxBpXwL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfecto para Softail Deluxe '17
*by J***. on 12 February 2025*

Perfecto para Softail Deluxe '17 Intrucciones claras sobre como instalar, tener en cuenta que al modificar sobre un filtro stock, puede necesitar remapeo la moto Tambien recomiendo buscar el rain sock de la marca filter wears, ya que el que recomienda amazon para esta publicacion le quedo corto

### ⭐⭐⭐⭐⭐ Worth Every Dime
*by H***R on 12 July 2025*

I replaced an Arlene Ness Big Sucker with this K&N and it was worth every dime. Way more air flow and a significantly noticeable increase in power. Instructions were a little vague but it wasn't that hard to figure out. Looks good and it gives the desired effect.

### ⭐⭐⭐⭐⭐ Parfait
*by S***Y on 14 June 2023*

Fit comme un charme.

## Frequently Bought Together

- K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952
- FILTERWEARS Pre-Filter K425K For Harley Davidson Ventilator Filter K&N Air Cleaner RK-3952 RK-3956 & Arlen Ness 600-099
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**Shop now:** [https://www.desertcart.hr/products/256334749-k-and-n-cold-air-intake-system-high-flow-air](https://www.desertcart.hr/products/256334749-k-and-n-cold-air-intake-system-high-flow-air)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-18*