--- product_id: 131956268 title: "K&N 33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV)" brand: "k&n" price: "€ 148.22" currency: EUR in_stock: true reviews_count: 9 category: "K&N" url: https://www.desertcart.be/products/131956268-k-and-n-33-3131-engine-air-filter-high-performance store_origin: BE region: Belgium --- # Washable & reusable for lifetime use Boosts horsepower & throttle response 4-layer oiled cotton filtration K&N 33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) **Brand:** k&n **Price:** € 148.22 **Availability:** ✅ In Stock ## Summary > 🏁 Drive smarter, breathe better — the power filter your Ford deserves! ## Quick Answers - **What is this?** K&N 33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) by k&n - **How much does it cost?** € 148.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/131956268-k-and-n-33-3131-engine-air-filter-high-performance) ## 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 - • **Trusted Durability:** Backed by a legendary 600,000-mile warranty, this filter is the last upgrade your air intake will ever need. - • **Effortless Installation:** Fits seamlessly into your Ford Focus IV’s factory air box—no mechanic needed, just plug and play. - • **Unleash Peak Performance:** Experience up to 40% more airflow for sharper throttle response and increased horsepower. - • **Eco-Smart & Cost-Efficient:** Wash, reuse, and save thousands over your vehicle’s lifetime with a filter designed to last 600,000 miles. - • **Ultimate Engine Protection:** Four layers of oiled cotton trap dust and dirt while repelling water, ensuring your engine breathes clean. ## Overview The K&N 33-3131 Engine Air Filter is a premium, washable replacement filter engineered specifically for 2018-2020 Ford Focus IV and Escape models. Designed to increase horsepower and throttle response, it features four layers of oiled cotton for superior filtration and water repellency. With a lifespan matching your vehicle’s engine and backed by a 600,000-mile warranty, this easy-to-install filter reduces maintenance costs while optimizing engine performance and sound. ## Description Ford Focus IV 1.0 & 1.5 (incl. Diesel) & 2.0 Diesel 2018- (33-3131) K&N replacement air filter. The filter lasts as long as the life of your engine. If your car gets serviced normally a new filter is installed. A K&N filter you can wash and reuse again. This saves considerably on the air filter and maintenance costs. With a K&N air filter you optimize the air supply to your engine. This ensures better performance and a better engine sound. Because of this feature many people call it a power filter. This type of K&N air filter is for replacing the original filter in the air box. You open the standard air filter housing/air box, replace the original filter with the K&N air filter and close the case. These types of air filters are quite easy to install. This is called a replacement filter and we also have K&N air filters that replace the whole air box. Benefits of a K&N replacement air filter: 1. More power, more torque and better throttle response. 2. Water repellent. 3. Washable & reusable. 4. 4 layers of oiled cotton for maximum protection. The oil layer is a magnet. Dust and dirt is stopped on the outside even though there is 40% more air forced into the engine. 5. 600.000 mile warranty. 6. Only clean every 45.000 to 100.000 miles. 7. The kit features a clear manual. Assembly: You can easily install the K&N replacement air filter in the car and take it out just as easy. On YouTube you can find numerous instructional videos to assist you. Review: fit and forget - This is a no brainer for the price. Whilst the cost is more than an OEM replacement it will be the one and only Air filter you will need and factor in the cost of replacing the OEM at every service it soon pays for itself. They come with a 1 million mile warranty, improves performance and fuel economy. Plus when it needs to be refreshed all you need to do is rinse the filter under water and reapply the oil to the filter. Review: K&n - Made a noticeable difference on throttle response ## Features - Designed to increase horsepower - Washable, reusable, and engineered to last for the life of your vehicle - Provides high airflow and exceptional filtration - Fits easily into the factory air box ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07N4GZDKB | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | 90,243 in Automotive ( See Top 100 in Automotive ) 670 in Car Air Engine Air Filters | | Brand | K&N | | Brand Name | K&N | | Country Of Origin | USA | | Customer Reviews | 4.7 out of 5 stars 491 Reviews | | EU Spare Part Availability Duration | 5 Years | | Fit Type | Vehicle Specific Fit | | Fit type | Vehicle Specific Fit | | Global Trade Identification Number | 00024844369963 | | Included Components | K&N air filter Ford Focus IV 1.0 & 1.5 (incl. Diesel) & 2.0 Diesel 2018- (33-3131) | | Item Dimensions L x W x H | 26.5L x 29.4W x 4.5H centimetres | | Item Shape | Rectangular | | Item Type Name | K&N Replacement Air Filter compatible with Ford Focus IV 1.0 & 1.5 (incl. Diesel) & 2.0 Diesel 2018- (33-3131) | | Manufacturer | K&N | | Manufacturer Part Number | 33-3131 | | Manufacturer Warranty Description | No | | Model Number | 33-3131 | | OEM Equivalent Part Number | Ford 2210514, Ford FA1939 | | OEM part number | Ford 2210514, Ford FA1939 | | Product Grade | New | | Product dimensions | 26.5L x 29.4W x 4.5H centimetres | | Product grade | New | | UPC | 024844369963 | | Unit Count | 1.0 count | ## Product Details - **Brand:** K&N - **EU Spare Part Availability Duration:** 5 Years - **Fit type:** Vehicle Specific Fit - **Product dimensions:** 26.5L x 29.4W x 4.5H centimetres - **Product grade:** New ## Images ![K&N 33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) - Image 1](https://m.media-amazon.com/images/I/81jvTzhbQtL.jpg) ## Questions & Answers **Q: Does this fit a 2018 Ford focus estate 1.5 petrol ecoboost 182** A: I have the same car Mk4 2019 ST Line X estate and this fits ## Customer Reviews ### ⭐⭐⭐⭐⭐ fit and forget *by M***N on 8 May 2025* This is a no brainer for the price. Whilst the cost is more than an OEM replacement it will be the one and only Air filter you will need and factor in the cost of replacing the OEM at every service it soon pays for itself. They come with a 1 million mile warranty, improves performance and fuel economy. Plus when it needs to be refreshed all you need to do is rinse the filter under water and reapply the oil to the filter. ### ⭐⭐⭐⭐⭐ K&n *by N***K on 18 April 2025* Made a noticeable difference on throttle response ### ⭐⭐⭐⭐⭐ Mk4 focus st k&n filter *by A***S on 21 December 2024* Fits like OEM great filter ## Frequently Bought Together - K&N 33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) - Bosch Wiper Blade Aerotwin A089S, Set of Front Wiper Blades, Length 650 mm/500 m --- ## 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.be/products/131956268-k-and-n-33-3131-engine-air-filter-high-performance](https://www.desertcart.be/products/131956268-k-and-n-33-3131-engine-air-filter-high-performance) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-28*