--- product_id: 131956268 title: "33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV)" brand: "k&n" price: "NT$5957" currency: TWD in_stock: true reviews_count: 9 category: "K&N" url: https://www.desertcart.tw/products/131956268-33-3131-engine-air-filter-high-performance-premium-washable-replacement store_origin: TW region: Taiwan --- # High airflow filtration Boosts horsepower Washable & reusable 33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) **Brand:** k&n **Price:** NT$5957 **Availability:** ✅ In Stock ## Summary > 💨 Elevate your ride with the filter that never quits! ## Quick Answers - **What is this?** 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?** NT$5957 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/131956268-33-3131-engine-air-filter-high-performance-premium-washable-replacement) ## 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 - • **Effortless Fit:** Precision engineered to seamlessly fit into your factory air box without modifications. - • **Lifetime Reliability:** Washable and reusable design means one filter for the life of your vehicle—no more replacements. - • **Fuel Economy Friendly:** Improves fuel efficiency by optimizing airflow and filtration. - • **Million-Mile Warranty:** Confidence backed by a 1,000,000 mile warranty—drive worry-free and stay ahead. - • **Unleash Peak Performance:** Engineered to increase horsepower and throttle response for a dynamic drive. ## Overview The K&N 33-3131 Engine Air Filter is a premium, washable replacement filter designed for 2018-2020 Ford Escape and Focus IV models. It enhances horsepower and throttle response while providing exceptional airflow and filtration. Built to last the lifetime of your vehicle with a 1 million mile warranty, this filter fits easily into the factory air box and improves fuel economy, making it a smart, cost-effective upgrade for discerning drivers. ## 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 | 106,217 in Automotive ( See Top 100 in Automotive ) 861 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 477 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 ![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) ![33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) - Image 2](https://m.media-amazon.com/images/I/81Zo+Vjqe6L.jpg) ![33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) - Image 3](https://m.media-amazon.com/images/I/91XBH-fZPrL.jpg) ![33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) - Image 4](https://m.media-amazon.com/images/I/71NS9U9dJhL.jpg) ![33-3131 Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with ,Red,2018-2020 FORD (Escape, Focus IV) - Image 5](https://m.media-amazon.com/images/I/71RubB89QfL.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.tw/products/131956268-33-3131-engine-air-filter-high-performance-premium-washable-replacement](https://www.desertcart.tw/products/131956268-33-3131-engine-air-filter-high-performance-premium-washable-replacement) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-06-23*