{"product_id":"k-n-air-filter-foam-insert-block-dsl-only-e-0644","title":"K\u0026N Air Filter Foam Insert Block DSL Only (E-0644)","description":"\u003ch2\u003e\u003cspan style=\"color: rgb(176, 23, 23);\"\u003e\u003cstrong\u003eK\u0026amp;N Air Filter Foam Insert Block for Diesel Models (E-0644\/85-2003)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\n\u003cspan class=\"citation-1040 citation-end-1040\"\u003eReplace your OEM foam block with the K\u0026amp;N E-0644 foam insert for Diesel Ford Super Duty 6.7L models.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Designed for a perfect fit and professional-grade filtration.\u003c\/h3\u003e\n\u003cp data-path-to-node=\"5\"\u003eThe K\u0026amp;N E-0644 Air Filter Foam Insert Block is a precision-engineered replacement component specifically designed for Diesel (DSL) engine applications. On many stock diesel air boxes, particularly the 2017–2019 Ford Super Duty 6.7L Powerstroke, the factory filter includes a foam block glued to the side that presses against the air box window.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eWhile the standard K\u0026amp;N E-0644 High-Flow Air Filter is a drop-in replacement for the main element, this optional foam insert (Part # 85-2003) is used to maintain the original factory seal and positioning against the air box window. It ensures that your high-performance filtration system remains secure and functions as intended by the manufacturer, providing an extra layer of structural support and debris protection for heavy-duty diesel environments.\u003c\/p\u003e\n\u003ch4 class=\"MsoNormal\"\u003e\u003cb\u003eBest Uses\u003c\/b\u003e\u003c\/h4\u003e\n\u003col style=\"margin-top: 0cm;\" start=\"1\" type=\"1\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eDiesel Maintenance:\u003c\/b\u003e Specifically required for Ford Super Duty F-250\/F-350\/F-450\/F-550 (2017–2019) with the 6.7L Diesel engine.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eOE Replacement:\u003c\/b\u003e Ideal for drivers who want to maintain the factory-style \"foam block\" seal when upgrading to a K\u0026amp;N High-Flow filter.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eHeavy-Duty Environments:\u003c\/b\u003e Used to prevent debris bypass and ensure proper filter seating in dusty or off-road conditions.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4 class=\"MsoNormal\"\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003c\/h4\u003e\n\u003col style=\"margin-top: 0cm;\" start=\"1\" type=\"1\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eCustom Fit for Diesel Units:\u003c\/b\u003e Specifically tailored for diesel air box configurations where a secondary foam block is utilized.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eHigh-Quality Foam Media:\u003c\/b\u003e Manufactured from durable, open-cell foam that resists heat and environmental breakdown.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eDirect OEM Replacement:\u003c\/b\u003e Designed to replace the foam block often glued to factory paper filters.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eEasy Installation:\u003c\/b\u003e Fits securely between the K\u0026amp;N filter and the air box window without the need for messy adhesives.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eVerified Compatibility:\u003c\/b\u003e Guaranteed fitment for Part Number E-0644 performance air filters.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4 class=\"MsoNormal\"\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/h4\u003e\n\u003col style=\"margin-top: 0cm;\" start=\"1\" type=\"1\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eEnhanced Sealing:\u003c\/b\u003e Provides a pressurized fit against the air box window to ensure no unfiltered air bypasses the main element.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eStructural Stability:\u003c\/b\u003e Helps hold the main air filter in the optimal position, even under high-vibration diesel engine cycles.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eProfessional Appearance:\u003c\/b\u003e Maintains the original equipment look and function within the engine bay.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eEngine Protection:\u003c\/b\u003e Acts as a secondary barrier to keep larger debris away from the intake tract during filter servicing.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003eCost-Effective Upgrade:\u003c\/b\u003e An affordable way to complete your high-performance intake system without reusing old, degraded factory foam.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis Part Fits:\u003c\/p\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth width=\"100\" align=\"left\"\u003eYear\u003c\/th\u003e\n\u003cth width=\"125\" align=\"left\"\u003eMake\u003c\/th\u003e\n\u003cth width=\"150\" align=\"left\"\u003eModel\u003c\/th\u003e\n\u003cth width=\"80\" align=\"left\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 Super Duty\u003c\/td\u003e\n\u003ctd\u003eKing Ranch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 Super Duty\u003c\/td\u003e\n\u003ctd\u003eLariat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 Super Duty\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 Super Duty\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 Super Duty\u003c\/td\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 Super Duty\u003c\/td\u003e\n\u003ctd\u003eXLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-350 Super Duty\u003c\/td\u003e\n\u003ctd\u003eKing Ranch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-350 Super Duty\u003c\/td\u003e\n\u003ctd\u003eLariat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-350 Super Duty\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-350 Super Duty\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-350 Super Duty\u003c\/td\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-350 Super Duty\u003c\/td\u003e\n\u003ctd\u003eXLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":47546343686298,"sku":"KNN85-2003","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0429\/6124\/0218\/files\/993b343236e6a6eaa04ed94cae5bdc72.jpg?v=1772789686","url":"https:\/\/2to4wheels.com\/hi\/products\/k-n-air-filter-foam-insert-block-dsl-only-e-0644","provider":"2to4wheels","version":"1.0","type":"link"}