---
product_id: 52664703
title: "Universal Clamp-On Air Filter: High Performance, Premium, Washable, Filter: Flange Diameter: 4 In, Filter Height: 5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD"
brand: "k&n"
price: "¥18004"
currency: JPY
in_stock: true
reviews_count: 13
category: "K&N"
url: https://www.desertcart.jp/products/52664703-universal-clamp-on-air-filter-high-performance-premium-washable-filter
store_origin: JP
region: Japan
---

# High airflow, low resistance Universal clamp-on fit Washable & reusable Universal Clamp-On Air Filter: High Performance, Premium, Washable, Filter: Flange Diameter: 4 In, Filter Height: 5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD

**Brand:** k&n
**Price:** ¥18004
**Availability:** ✅ In Stock

## Summary

> 💨 Unleash your engine’s roar with K&N’s ultimate airflow upgrade!

## Quick Answers

- **What is this?** Universal Clamp-On Air Filter: High Performance, Premium, Washable, Filter: Flange Diameter: 4 In, Filter Height: 5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD by k&n
- **How much does it cost?** ¥18004 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/52664703-universal-clamp-on-air-filter-high-performance-premium-washable-filter)

## 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

- • **Boost Your Ride's Power:** Designed to enhance acceleration and engine performance for that extra edge on the road.
- • **Effortless Installation:** Clamp-on design fits universally with a 4-inch flange diameter—get upgraded in under 5 minutes.
- • **Eco-Friendly & Cost-Saving:** Washable and reusable filter reduces waste and saves you money over 80,000 km maintenance intervals.
- • **Trusted Performance Leader:** Backed by 4.6-star reviews and a top 40 rank in car air filters—join thousands upgrading their drive.
- • **Optimized Airflow Engineering:** Round tapered shape ensures maximum air intake with minimal resistance, letting your engine breathe freely.

## Overview

The K&N Universal Clamp-On Air Filter (model RG-1001RD) is a premium, washable, and reusable air filter designed with a 4-inch flange diameter and a tapered round shape. It delivers high airflow with low resistance, boosting engine power and acceleration. Easy to install with a universal clamp-on fit, it offers a long maintenance interval of up to 80,000 km, making it a cost-effective and eco-friendly upgrade trusted by thousands of drivers worldwide.

## Description

Buy K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Filter: Flange Diameter: 4 In, Filter Height: 5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD at desertcart UK. Free delivery on eligible orders.

Review: I’d definitely recommend to anyone - I can’t recommend this air filter enough, it fits right into the original air pipe using the provided adapters, the air filter quality is top notch, my engine sounds like it’s breathing so much better with this on, it’s such an easy installation it took less than 5 minutes, this has so many benefits for the price and I’d highly recommend to anyone who is looking for a sport look and sound to their car
Review: Used on MK3 Mondeo 2.0L Duratec - Fitted straight onto Ford Mondeo 2.0L Duratec intake pipe, 2006 reg. with a simple plumbing connector plus 2nd hose clamps. Position on this car gives superb airflow with no noticeable heat soak even during summer. Exhaust manifold at the rear firewall side of the engine. This engine sounds good at high rpm as standard but this simple filter allows it to howl. Very large Cone, would struggle to fit in any small/medium engine bay.

## Features

- Designed for more power and better acceleration
- Washable, reusable product saves energy
- Low resistance and high air flow for your engine
- Maintenance interval of 80,000 km, depending on driving conditions
- 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 | B00AFRIVNQ |
| Best Sellers Rank | 12,329 in Automotive ( See Top 100 in Automotive ) 34 in Car Air Engine Air Filters |
| Brand | K&N |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,946) |
| Date First Available | 19 Feb. 2013 |
| Item Weight | 784 g |
| Item model number | RG-1001RD |
| Manufacturer | K&N |
| Manufacturer part number | RG-1001RD |
| Model | RG-1001RD |
| OEM Part Number | RG-1001RD |
| Product Dimensions | 8.89 x 10.16 x 7.62 cm; 783.81 g |
| Safety rating | Não aplicável |

## Product Details

- **Brand:** K&N
- **EU Spare Part Availability Duration:** 1 Years
- **Fit type:** Universal Fit
- **Product dimensions:** 15.2L x 15.2W x 16.9H centimetres
- **Product grade:** Replacement Part

## Images

![Universal Clamp-On Air Filter: High Performance, Premium, Washable, Filter: Flange Diameter: 4 In, Filter Height: 5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD - Image 1](https://m.media-amazon.com/images/I/81fmmwwrPCL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Once air box is removed, where does the sensor thats on the air box go?**
A: If you are upgrading a standard air box as well as the filter you will need an inlet pipe and the sensor would insert along this pipe.

**Q: Well this fit 07 focus**
A: Yes with reducers

**Q: Does this come with adapter clips?**
A: it comes with 3 option reducers for various intake pipe diameters ( if you need to know what these are i'm pretty sure I saw them online).

**Q: Will this fit 2009 Mk2 focus tdci please?**
A: Just measure the diameter of the inlet pipe to which the filter will be fitted, then make sure that's the same or less than the maximum diameter of the filter's fitting.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I’d definitely recommend to anyone
*by O***N on 6 July 2025*

I can’t recommend this air filter enough, it fits right into the original air pipe using the provided adapters, the air filter quality is top notch, my engine sounds like it’s breathing so much better with this on, it’s such an easy installation it took less than 5 minutes, this has so many benefits for the price and I’d highly recommend to anyone who is looking for a sport look and sound to their car

### ⭐⭐⭐⭐⭐ Used on MK3 Mondeo 2.0L Duratec
*by B***D on 28 May 2025*

Fitted straight onto Ford Mondeo 2.0L Duratec intake pipe, 2006 reg. with a simple plumbing connector plus 2nd hose clamps. Position on this car gives superb airflow with no noticeable heat soak even during summer. Exhaust manifold at the rear firewall side of the engine. This engine sounds good at high rpm as standard but this simple filter allows it to howl. Very large Cone, would struggle to fit in any small/medium engine bay.

### ⭐⭐⭐⭐⭐ Perfect fit for a Vauxhall vectra c sri
*by K***V on 25 April 2025*

Fits perfect on a 2008 Vauxhall vectra c sri, better throttle response, sounds great, great value for money and it's a quality product

## Frequently Bought Together

- K&N High-Flow Original Lifetime Universal Clamp-On Air Filter: High Performance, Premium: Flange Diameter: 4 In, Filter Height: 5.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD
- TCMI Air Filter Cover for Car Cold Air Intake Filter Cover Wrap Dustproof, Air Intake Filter Sock Cover for Harley Touring, Universal for High Flow Air Intake Filters (S)
- K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi

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**Shop now:** [https://www.desertcart.jp/products/52664703-universal-clamp-on-air-filter-high-performance-premium-washable-filter](https://www.desertcart.jp/products/52664703-universal-clamp-on-air-filter-high-performance-premium-washable-filter)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-07*