{"product_id":"sierra-fuel-water-separator-filter-amrs-18-7945-4-35-long-10-micron-replacement-high-flow-90-gph","title":"Sierra fuel water separator filter AMRS-18-7945 — 4.35\" long 10-micron replacement, high-flow 90 GPH","description":"\u003cp\u003e\u003cstrong\u003eThe Sierra AMRS-18-7945 is a 4.35\" long, 10-micron fuel water separator designed to protect fuel-injection marine engines by removing emulsified water and fine particles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep fuel clean and fuel systems running smoothly with a compact, high-flow replacement element engineered for inboard and outboard engines. This Sierra long fuel\/water separator is built to meet the needs of modern fuel-injected marine powerplants: high flow rate, fine filtration, and strong water-removal capability in a cartridge sized for common housings.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter remove water and contaminants?\u003c\/h3\u003e\n\u003cp\u003eThe AMRS-18-7945 uses a 10-micron media optimized to separate emulsified water from gasoline and capture particles that can damage injectors and pumps. Its construction balances fine filtration with high throughput so it won't starve the engine while trapping debris and moisture.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10 micron media rated for fuel injection systems\u003c\/li\u003e\n  \u003cli\u003eRemoves over 99.8% of emulsified water from gasoline (typical performance)\u003c\/li\u003e\n  \u003cli\u003eOver 90% efficiency at capturing 10-micron particles\u003c\/li\u003e\n  \u003cli\u003eFlows at 90 GPH to support high-demand engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my existing fuel-water separator housing?\u003c\/h3\u003e\n\u003cp\u003eThe AMRS-18-7945 is a long (4.35\") replacement cartridge designed to match housings that accept the 18-7945 length and style. It cross-references several OEM part numbers, making it a drop-in option for many common marine filtration systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePhysical length: 4.35\" (long cartridge)\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for Mercury 35-802893Q01 and other OEM codes\u003c\/li\u003e\n  \u003cli\u003eCompatible with housings designed for long, 10-micron elements\u003c\/li\u003e\n  \u003cli\u003eCheck your housing gasket and sealing surface for a proper fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will this filter affect engine reliability and maintenance?\u003c\/h3\u003e\n\u003cp\u003eRegular use of a capable fuel\/water separator like this one reduces the chance of injector fouling and fuel-pump wear by keeping water and particulates out of the fuel system. Because it maintains 90 GPH flow, it supports peak engine demand while protecting sensitive components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended for protecting fuel injection systems from contaminants\u003c\/li\u003e\n  \u003cli\u003eHelps prevent downtime linked to water-contaminated fuel\u003c\/li\u003e\n  \u003cli\u003eDesigned to feed even high-flow engines without restriction\u003c\/li\u003e\n  \u003cli\u003ePeriodic replacement keeps filtration performance consistent\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for?\u003c\/p\u003e\n\u003cp\u003eThis Sierra AMRS-18-7945 filter is aimed at boat owners, mechanics, and fleet operators who run fuel-injected inboard or outboard engines and need a reliable, high-flow cartridge that removes water and fine particles. If your engine manufacturer or maintenance schedule calls for a 10-micron long cartridge, or if you need a replacement for Mercury 35-802893Q01, Yamaha ABB-FUELF-IL-TR, Mallory 9-37801, GLM 24940, OMC 0509532, Redline RL7844, Fram PS3808, or Tohatsu 3Y9022340, this Sierra element is a practical choice. Install during routine service intervals to maintain fuel system performance and reduce the risk of fuel-related failures.\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: Is the AMRS-18-7945 compatible with Mercury 35-802893Q01?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this Sierra cartridge replaces Mercury 35-802893Q01 and other listed OEM part numbers as a direct-fit long 10-micron element.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace this fuel\/water separator?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace according to your engine manufacturer's schedule or when you notice decreased flow or contamination; common intervals are annually or seasonally for marine use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":67595607736505,"sku":"B079KTQ9ZJ","price":52.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/sierra-fuel-water-separator-front-packaging.jpg?v=1790590767","url":"https:\/\/redleafauto.ca\/products\/sierra-fuel-water-separator-filter-amrs-18-7945-4-35-long-10-micron-replacement-high-flow-90-gph","provider":"Redleaf Auto","version":"1.0","type":"link"}