--- product_id: 316631536 title: "K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 1990-1999 HARLEY DAVIDSON (FLSTC, FLSTF, FLSTS, FXST, FXSTB, FXSTC, FLHR, FLHT, FLHTC, and other select models) HD-1390" brand: "k&n" price: "69.49 OMR" currency: OMR in_stock: true reviews_count: 5 category: "K&N" url: https://www.desertcart.com.om/products/316631536-k-and-n-engine-air-filter-high-performance-premium-powersport store_origin: OM region: Oman --- # 10 Year/Million Mile Warranty 50% more airflow Pre-oiled, easy install K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 1990-1999 HARLEY DAVIDSON (FLSTC, FLSTF, FLSTS, FXST, FXSTB, FXSTC, FLHR, FLHT, FLHTC, and other select models) HD-1390 **Brand:** k&n **Price:** 69.49 OMR **Availability:** ✅ In Stock ## Summary > 🔥 Power your ride, protect your legacy. ## Quick Answers - **What is this?** K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 1990-1999 HARLEY DAVIDSON (FLSTC, FLSTF, FLSTS, FXST, FXSTB, FXSTC, FLHR, FLHT, FLHTC, and other select models) HD-1390 by k&n - **How much does it cost?** 69.49 OMR with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/316631536-k-and-n-engine-air-filter-high-performance-premium-powersport) ## 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:** Boost your Harley’s acceleration with up to 50% increased airflow over standard filters. - • **Plug & Play Upgrade:** Pre-oiled and engineered for a seamless fit—install in minutes and hit the road faster. - • **Ride with Confidence:** Backed by a legendary 10-year/million-mile warranty—performance that lasts as long as your journey. - • **Eco-Friendly Performance:** Washable and reusable design reduces waste and saves you money over disposable filters. - • **Tailored for Harley Legends:** Specifically crafted for 1990-1999 Harley Davidson models to ensure perfect compatibility. ## Overview The K&N HD-1390 Engine Air Filter is a high-performance, reusable air filter designed specifically for 1990-1999 Harley Davidson models. It delivers up to 50% more airflow than disposable filters, enhancing engine power and acceleration. Pre-oiled and easy to install, it comes with a 10-year/million-mile limited warranty, offering long-lasting durability and eco-friendly benefits by reducing waste. ## Description K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your motorcycle, ATV, or Side-By-Side vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance for your journey. Join the millions of customers who have saved money and improved performance by upgrading to K&N filtration. Fitment Information: 1990-1999 HARLEY DAVIDSON FLSTC Heritage Softail Classic; 1990-1999 HARLEY DAVIDSON FLSTF Fat Boy; 1997-1999 HARLEY DAVIDSON FLSTS Heritage Springer; 1999 HARLEY DAVIDSON FXST Softail Standard; 1999 HARLEY DAVIDSON FXSTB Night Train; 1990-1999 HARLEY DAVIDSON FXSTC Softail Custom; 1990-1999 HARLEY DAVIDSON FXSTS Springer Softail; 1995-1998 HARLEY DAVIDSON FLHR Road King; 1995-1998 HARLEY DAVIDSON FLHT Electra Glide Standard; 1990-1998 HARLEY DAVIDSON FLHTC Electra Glide Classic; 1996-1998 HARLEY DAVIDSON FLSTN Heritage Softail Special; 1998 HARLEY DAVIDSON FLTR Road Glide; 1995-1998 HARLEY DAVIDSON FXD Dyna Super Glide; 1993-1998 HARLEY DAVIDSON FXDL Dyna Low Rider; 1996-1998 HARLEY DAVIDSON FXDS Dyna Convertible; 1993-1998 HARLEY DAVIDSON FXDWG Dyna Wide Glide; 1990-1997 HARLEY DAVIDSON FLHTCU Electra Glide Ultra Classic; 1995-1997 HARLEY DAVIDSON FXSTSB Bad Boy; 1993-1995 HARLEY DAVIDSON FLSTN Heritage Softail Nostalgia; 1990-1995 HARLEY DAVIDSON FLTCU Ultra Tour Glide Classic; 1994-1995 HARLEY DAVIDSON FXDS Dyna Low Rider Conv.; 1990-1994 HARLEY DAVIDSON FXLR Low Rider Custom; 1990-1993 HARLEY DAVIDSON FLHS Electra Glide Sport; 1993 HARLEY DAVIDSON FLHTC Classic Anniversary; 1993 HARLEY DAVIDSON FLHTCU Electra Glide Ultra Classic Annv.; 1993 HARLEY DAVIDSON FLTCU Ultra Tour Glide Annv.; 1993 HARLEY DAVIDSON FXLR Low Rider Custom Annv.; 1990-1993 HARLEY DAVIDSON FXR Super Glide; 1990-1993 HARLEY DAVIDSON FXRS Low Rider Conv.; 1990-1993 HARLEY DAVIDSON FXRS-SP Low Rider Sport; 1992 HARLEY DAVIDSON FXDB Dyna Glide Daytona; 1992 HARLEY DAVIDSON FXDC Dyna Glide Custom; 1990-1992 HARLEY DAVIDSON FXRS Low Rider; 1990-1992 HARLEY DAVIDSON FXRT Sport Glide; 1990-1991 HARLEY DAVIDSON FLTC Tour Glide Classic; 1991 HARLEY DAVIDSON FXDB Dyna Glide Sturgis; 1990 HARLEY DAVIDSON FLST Heritage Softail; 1990 HARLEY DAVIDSON FXST Softail Review: K&N has the best filters - Great washable filter from reputable K&N. I run K&N air filters on all my motorized equipment. From 23 hp small engines to motorcycles, to daily drivers and 800 hp hot rods. It's all good. Review: K&N Air Filter - Fits like a worn baseball glove on my 99 Fatso H-D Evo. ## Features - ULTIMATE LONGEVITY: 10 Year/Million Mile Limited Warranty protects for the life of your vehicle. - ENGINEERED POWER: State of the art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle's acceleration by up to 10%. - EASY INSTALLATION: Pre oiled and ready to install. One of the easiest and most cost effective upgrades for your motorcycle or ATV for quick performance ns. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000AP1MY8 | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #237,979 in Automotive ( See Top 100 in Automotive ) #2,545 in Car Engine Air Filters | | Brand | K&N | | Brand Name | K&N | | Country of Publication | USA | | Customer Reviews | 4.5 out of 5 stars 53 Reviews | | EU Spare Part Availability Duration | 10 Years | | Fit Type | Vehicle Specific Fit | | Fit type | Vehicle Specific Fit | | Global Trade Identification Number | 00024844023353 | | Included Components | HARLEY DAVIDSON EVO 1990-1999 | | Item Dimensions L x W x H | 18.7L x 15.2W x 4.3H centimeters | | Item Type Name | HARLEY DAVIDSON EVO 1990-1999 | | Item Weight | 0.8 Pounds | | Manufacturer | K&N Engineering | | Manufacturer Part Number | HD-1390 | | Model Number | HD-1390 | | OEM Equivalent Part Number | ZZ HD-1390 | | OEM part number | ZZ HD-1390 | | Product Grade | Performance Part | | Product dimensions | 18.7L x 15.2W x 4.3H centimeters | | Product grade | Performance Part | | Shape | Panel | | UPC | 182682104297 953040020890 024844023353 | | Unit Count | 1.0 Count | ## Product Details - **Product grade:** Performance Part - **Brand:** K&N - **Fit type:** Vehicle Specific Fit - **Product dimensions:** 18.7L x 15.2W x 4.3H centimeters - **OEM part number:** ZZ HD-1390 ## Images ![K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 1990-1999 HARLEY DAVIDSON (FLSTC, FLSTF, FLSTS, FXST, FXSTB, FXSTC, FLHR, FLHT, FLHTC, and other select models) HD-1390 - Image 1](https://m.media-amazon.com/images/I/51JHOC1lpTL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ K&N has the best filters *by D***E on 20 June 2026* Great washable filter from reputable K&N. I run K&N air filters on all my motorized equipment. From 23 hp small engines to motorcycles, to daily drivers and 800 hp hot rods. It's all good. ### ⭐⭐⭐⭐⭐ K&N Air Filter *by P***E on 9 April 2024* Fits like a worn baseball glove on my 99 Fatso H-D Evo. ### ⭐⭐⭐⭐ HD1390 *by F***P on 5 July 2011* Said it would fit my Fat Boy. It didn't so I returned it and they sent me one that did. 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