{"product_id":"fuel-water-separator-filter-fs20121-for-cummins-l9-b6-7-fleetguard-5521648-2020-plus","title":"Fuel Water Separator Filter FS20121 for Cummins L9 B6.7 Fleetguard 5521648 2020 Plus","description":"\u003cstrong\u003eThis Fuel Water Separator Filter FS20121 is a replacement fuel filter\/water separator compatible with Cummins L9 and B6.7 engines and matches OEM Part# 5521648 (Fleetguard).\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003eThe Fuel Water Separator Filter FS20121 efficiently removes water and contaminants from diesel fuel, protecting your engine's fuel system. Designed for modern Cummins L9 and B6.7 engines, this fuel water separator filter ensures reliable performance in heavy-duty applications. It is an ideal replacement for Fleetguard 5521648, providing the same high-quality filtration.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEfficient water separation technology\u003c\/li\u003e\n\u003cli\u003eHigh-capacity filtration media\u003c\/li\u003e\n\u003cli\u003eEasy spin-on installation\u003c\/li\u003e\n\u003cli\u003eDurable construction for long service life\u003c\/li\u003e\n\u003cli\u003eMeets OEM specifications\u003c\/li\u003e\n\u003cli\u003eCompatible with Fleetguard 5521648 systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cul\u003e\n\u003cli\u003eCummins L9 (2020+ engines)\u003c\/li\u003e\n\u003cli\u003eCummins B6.7 (2020+ engines)\u003c\/li\u003e\n\u003cli\u003eVehicles using Fleetguard 5521648 or FS20121 filter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cul\u003e\n\u003cli\u003eDiesel truck and bus engines\u003c\/li\u003e\n\u003cli\u003eIndustrial and agricultural equipment\u003c\/li\u003e\n\u003cli\u003eGenerator sets\u003c\/li\u003e\n\u003cli\u003eMarine diesel engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e FS20121, 5521648\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Fuel Water Separator Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Diesel Fuel System\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this filter compatible with my 2021 Cummins L9?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, the FS20121 is designed for Cummins L9 and B6.7 engines from 2020 onward. Always verify your engine's specific filter requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the recommended replacement interval?\u003cstrong\u003e A:\u003c\/strong\u003e Typically every 15,000 miles or as per Cummins maintenance schedule for fuel water separator filters.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53678089273617,"sku":"ZZ2Z01605","price":107.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/12_4c0188c0-13e8-4799-a7cc-e01a5f89c663.jpg?v=1781614661","url":"https:\/\/www.duraforce.com\/products\/fuel-water-separator-filter-fs20121-for-cummins-l9-b6-7-fleetguard-5521648-2020-plus","provider":"DURAFORCE","version":"1.0","type":"link"}