{"product_id":"aulday-s3213-marine-fuel-water-separator-4-pack-direct-fit-replacement-three-layer-synthetic-media","title":"AULDAY S3213 Marine Fuel Water Separator 4-Pack — Direct-Fit Replacement, Three-Layer Synthetic Media","description":"\u003cp\u003e\u003cstrong\u003eThe AULDAY 4PCS S3213 marine fuel filter is a direct-fit fuel\/water separator designed to remove contaminants and water from outboard motor fuel for consistent engine performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your boat running smoothly with this four-pack of AULDAY S3213 fuel filters, engineered to replace common OEM numbers including 35-60494-1, S3213, and 35-809097. Each filter uses a three-layer synthetic fiber media to trap particles and shed water before contaminants reach the fuel pump or injectors. The set is sold as a plug-and-play replacement to simplify maintenance intervals and protect your outboard from premature wear.\u003c\/p\u003e\n\n\u003ch3\u003eWill these filters fit my outboard motor?\u003c\/h3\u003e\n\n\u003cp\u003eThe S3213 filters are manufactured to match the form and function of many OEM water separators and filter cartridges. They list compatibility with multiple part numbers and common marine fitments, making it likely they will work with several brands of outboard engines. Always compare dimensions and OEM references before ordering to ensure a proper match.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReplaces: 35-60494-1, S3213, 18-7932-1, 18-17928, 35-809097 and related numbers.\u003c\/li\u003e\n  \u003cli\u003eDirect-fit design for plug-and-play replacement—no electrical changes needed.\u003c\/li\u003e\n  \u003cli\u003eSold as a set of four for staggered service intervals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and prime an S3213 fuel filter?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward: remove the old cartridge, position the new S3213, and reassemble according to your engine manufacturer’s instructions. Pre-fill the replacement filter with clean fuel on the inlet side before final assembly to reduce air ingestion. After installation, prime and start the engine, let it run a few minutes, then inspect for leaks.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNo electrical modifications; plug-and-play cartridge swap.\u003c\/li\u003e\n  \u003cli\u003ePre-fill the dirty-side chamber with clean fuel before closing the system.\u003c\/li\u003e\n  \u003cli\u003ePrime the fuel system and check for leaks after the engine runs briefly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the AULDAY S3213 effective at protecting marine engines?\u003c\/h3\u003e\n\n\u003cp\u003eEach filter uses original Italian three-layer filter paper constructed from synthetic fibers that capture both particulate and free water. That dual-action media helps keep fuel delivery components—like pumps, injectors, and cylinders—clean, reducing wear and maintaining efficient combustion. The design targets high-performance marine conditions where water contamination and debris are common concerns.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThree-layer synthetic fiber media for strong particle retention and water separation.\u003c\/li\u003e\n  \u003cli\u003eProtects pumps, injectors, and internal engine surfaces from contaminants.\u003c\/li\u003e\n  \u003cli\u003eEngineered for higher performance marine applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support come with the filters?\u003c\/h3\u003e\n\n\u003cp\u003eAULDAY provides a 12-month warranty on these filters and offers lifetime technical support from the shop. If you encounter fitment questions or performance concerns, customer service can assist with troubleshooting and returns within the warranty period.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e12-month limited warranty included.\u003c\/li\u003e\n  \u003cli\u003eLifetime technical support from the seller for installation and troubleshooting.\u003c\/li\u003e\n  \u003cli\u003eSold in a cost-effective four-pack to reduce future purchasing frequency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boat owners, marine mechanics, and service shops that need reliable, OEM-compatible fuel\/water separators for outboard engines will benefit from the AULDAY S3213 four-pack. It’s suited for routine maintenance schedules and fleet servicing where multiple replacements are required, and for anyone who prefers a straightforward, no-modification swap to restore clean, water-free fuel delivery.\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: Do these S3213 filters fit my OEM part number?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They replace many common numbers (35-60494-1, S3213, 35-809097); verify dimensions and OEM reference before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many filters are included and is priming required?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This listing includes four S3213 filters; pre-fill and prime after installation to remove air and prevent starting issues.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AULDAY","offers":[{"title":"Default Title","offer_id":48083878903966,"sku":"B0B98WKSPH","price":79.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/aulday-s3213-front-packaging.jpg?v=1785838253","url":"https:\/\/northtrailauto.ca\/products\/aulday-s3213-marine-fuel-water-separator-4-pack-direct-fit-replacement-three-layer-synthetic-media","provider":"North Trail Auto","version":"1.0","type":"link"}