{"product_id":"dzfst-fi-r12t-fuel-filter-water-separator-spin-on-r12t-replacement-with-clear-water-bowl-three-layer-media","title":"DZFST.FI R12T Fuel Filter Water Separator — Spin-On R12T Replacement with Clear Water Bowl, Three-Layer Media","description":"\u003cstrong\u003eR12T Fuel Filter Water Separator is a direct-fit spin-on filter with an integrated water-collection bowl that removes fuel contaminants and separates free water for cleaner fuel delivery.\u003c\/strong\u003e\n\n\u003cp\u003eThis spin-on filter from DZFST.FI replaces factory R12T-style cartridges and fits many outboard marine engines and other small-engine applications. It combines a three-layer synthetic fiber media with a clear water-collection bowl for easy inspection and routine draining. The unit is designed as a plug-and-play replacement to protect injectors, fuel pumps, and combustion components from debris and moisture that shorten engine life and reduce efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter separate water from gasoline or diesel?\u003c\/h3\u003e\n\u003cp\u003eThe filter uses a hydrophobic media and gravity-assisted bowl to trap free water while the filter media captures particulates and sludge. Water droplets collect in the bottom bowl where they can be drained without removing the cartridge, preventing water from entering the fuel system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree-layer synthetic fiber filter media for fine particle capture\u003c\/li\u003e\n  \u003cli\u003eTransparent collection bowl for visual water level checks\u003c\/li\u003e\n  \u003cli\u003eDrain port allows quick removal of accumulated water\u003c\/li\u003e\n  \u003cli\u003eSeals and threads sized for direct-fit replacement of R12T-style parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my engine and which part numbers does it replace?\u003c\/h3\u003e\n\u003cp\u003eThis DZFST.FI R12T unit is designed as a direct-fit replacement for many OEM part numbers. Before purchasing, compare your existing filter’s model number and thread type to ensure compatibility—this model replaces common references used on outboards and small equipment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces: R12T, S3240, 18-7947, 187947 and related OEM numbers\u003c\/li\u003e\n  \u003cli\u003eAlso cross-references: 17670-ZW1-030GH, 99105-20006, 9-37812\u003c\/li\u003e\n  \u003cli\u003eSuitable for outboards, tractors, skid steers, loaders and small engines\u003c\/li\u003e\n  \u003cli\u003eCheck your manual or existing filter label to confirm fit before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain this spin-on water separator?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: remove the old cartridge, pre-fill the new filter's dirty side with clean fuel, then thread the new unit in place and prime the system according to your engine's procedure. Routine maintenance includes periodic draining of the bowl and replacing the cartridge at the manufacturer-recommended interval or whenever fuel flow or clarity is compromised.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play direct-fit—no permanent modifications required\u003c\/li\u003e\n  \u003cli\u003ePre-fill new filter before installation to minimize dry starts\u003c\/li\u003e\n  \u003cli\u003ePrime engine and inspect for leaks after installation\u003c\/li\u003e\n  \u003cli\u003eDrain water bowl regularly and replace filter element as scheduled\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance benefits should I expect from using this filter?\u003c\/h3\u003e\n\u003cp\u003eBy removing particulates and free water, the filter helps reduce wear on fuel system components and maintains more consistent fuel delivery. Improved filtration contributes to steadier engine operation and can help preserve fuel injection and pump components, extending service intervals when maintained properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProtects injectors, pumps, cylinder liners and piston rings from debris\u003c\/li\u003e\n  \u003cli\u003eHelps maintain stable fuel flow under varied marine conditions\u003c\/li\u003e\n  \u003cli\u003eSynthetic media resists rapid saturation and filters fine contaminants\u003c\/li\u003e\n  \u003cli\u003eVisible bowl simplifies monitoring and reduces guesswork during inspections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this product is for: Boat owners and operators, as well as technicians working on outboard engines and small equipment, who need a reliable, easy-to-service fuel filter that separates water and traps contaminants. If you require a direct-fit replacement for R12T-style cartridges or want clearer, drier fuel delivered to your engine, this DZFST.FI spin-on water separator is made for routine marine and small-engine maintenance. Confirm your part number before ordering to ensure compatibility, and follow recommended installation and priming steps for best results.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this R12T filter on diesel and gasoline engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The R12T spin-on separator suits both gasoline and diesel small-engine fuel systems when thread and size match your original filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I drain the water bowl?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Inspect the bowl regularly; drain whenever water is visible or during routine service intervals to prevent fuel contamination.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DZFST.FI","offers":[{"title":"Default Title","offer_id":55161658179927,"sku":"B0CBMGJGTT","price":29.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/dzfst.fi-r12t-front-view.jpg?v=1790330970","url":"https:\/\/britishgarage.co.uk\/products\/dzfst-fi-r12t-fuel-filter-water-separator-spin-on-r12t-replacement-with-clear-water-bowl-three-layer-media","provider":"British Garage","version":"1.0","type":"link"}