{"product_id":"dee-ring-316-inox-5-40mm-stainless-d-ring-4boats","title":"Mercury Quicksilver Bleed Hose Check Valve 21-91933 Outboard Engine Part","description":"\u003c!-- \n  ***********************************************************\n  EBAY LISTING DATA\n  ***********************************************************\n  OPTIMIZED EBAY TITLE (80 Chars): Mercury Quicksilver Bleed Hose Check Valve 21-91933 Outboard Engine Part\n  SEO NOTES: Verified Mercury\/Quicksilver Part 21-91933. Direct replacement check valve for bleed hose systems on 2-stroke outboards. Cross-referenced with 21-426233.\n--\u003e\n\n\u003cdiv style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.6; color: #333333; max-width: 900px; margin: 0 auto;\"\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Mercury Quicksilver Bleed Hose Check Valve 21-91933\",\n    \"description\": \"Genuine Mercury Quicksilver press-in bleed hose check valve for outboard engine bleed systems. Designed for precision flow control in marine 2-stroke engines.\",\n    \"brand\": { \"@type\": \"Brand\", \"name\": \"Mercury Quicksilver\" },\n    \"sku\": \"91933\",\n    \"mpn\": \"21-91933\",\n    \"offers\": {\n      \"@type\": \"Offer\",\n      \"url\": \"https:\/\/4boats.co.uk\/products\/91933\",\n      \"priceCurrency\": \"GBP\",\n      \"price\": \"{{ product.price | money_without_currency }}\",\n      \"availability\": \"https:\/\/schema.org\/InStock\"\n    }\n  }\n  \u003c\/script\u003e\n\n  \u003cdiv style=\"background-color: #2c3e50; color: #ffffff; padding: 40px 20px; text-align: center; border-radius: 6px 6px 0 0;\"\u003e\n    \u003ch1 style=\"margin: 0; font-size: 28px; letter-spacing: 1px; text-transform: uppercase; color: #ffffff;\"\u003eMercury Quicksilver Check Valve 21-91933\u003c\/h1\u003e\n    \u003cp style=\"margin: 10px 0 0; font-size: 18px; color: #ecf0f1;\"\u003ePremium Bleed Hose System Component\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"padding: 25px; border: 1px solid #e0e0e0; border-top: none; background-color: #ffffff;\"\u003e\n    \u003cp style=\"margin-top: 0;\"\u003eThis genuine Mercury Quicksilver Bleed Hose Check Valve (Part Number 21-91933) is a vital component for the recirculation and bleed systems of Mercury and Mariner 2-stroke outboard engines. This \"press-in\" style valve ensures the correct directional flow of fluids and air, preventing backflow and maintaining optimal engine performance and lubrication.\u003c\/p\u003e\n    \u003cdiv style=\"background-color: #f8f9fa; border-left: 5px solid #27ae60; padding: 15px; margin: 20px 0;\"\u003e\n      \u003cstrong style=\"color: #27ae60;\"\u003eRELIABILITY:\u003c\/strong\u003e Engineered by Mercury Marine to resist the harsh chemical environments of fuel and oil in marine applications.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"display: flex; flex-wrap: wrap; margin-top: 20px; gap: 20px;\"\u003e\n    \u003cdiv style=\"flex: 1; min-width: 300px; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px; background-color: #ffffff;\"\u003e\n      \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eKey Features\u003c\/h3\u003e\n      \u003cul style=\"list-style-type: none; padding: 0; margin: 0;\"\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ Direct OEM replacement\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ Durable press-in design\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ Essential for 2-stroke bleed systems\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ Precision-calibrated flow valve\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"flex: 1; min-width: 300px; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px; background-color: #ffffff;\"\u003e\n      \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eTechnical Specs\u003c\/h3\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; font-weight: bold; border-bottom: 1px solid #f4f4f4;\"\u003eManufacturer:\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f4f4f4; text-align: right;\"\u003eMercury Marine\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; font-weight: bold; border-bottom: 1px solid #f4f4f4;\"\u003ePart Type:\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f4f4f4; text-align: right;\"\u003eCheck Valve\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; font-weight: bold; border-bottom: 1px solid #f4f4f4;\"\u003eMounting:\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f4f4f4; text-align: right;\"\u003ePress-In\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; font-weight: bold; border-bottom: 1px solid #f4f4f4;\"\u003eMaterial:\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f4f4f4; text-align: right;\"\u003eHigh-Grade Nylon\/Composite\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"background-color: #34495e; color: #fff; padding: 12px 15px; margin: 0; border-radius: 6px 6px 0 0; text-align: center;\"\u003eCompatibility \/ Fitment Guide\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n        \u003cthead\u003e\n          \u003ctr style=\"background-color: #ecf0f1;\"\u003e\n            \u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMake\/System\u003c\/th\u003e\n            \u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel\/Application\u003c\/th\u003e\n            \u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eNotes\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMercury \/ Mariner\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e50hp - 115hp (3-Cyl \u0026amp; 4-Cyl)\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFits various 2-stroke models\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMercury \/ Mariner\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e135hp - 200hp V6 2-Stroke\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eBleed hose circuit replacement\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMercury Marine\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJet Drive Outboards\u003c\/td\u003e\n            \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eVerify against serial number\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"background-color: #34495e; color: #fff; padding: 12px 15px; margin: 0; border-radius: 6px 6px 0 0; text-align: center;\"\u003eOEM Cross Reference\u003c\/h3\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n      \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n        \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eMercury \/ Quicksilver MPN\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e21-91933, 21-91933 1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSuperseded Part Numbers\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e21-426233, 21-426232\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px; background-color: #fcfcfc; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px;\"\u003e\n    \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eQuestions \u0026amp; Answers\u003c\/h3\u003e\n    \u003cdiv style=\"margin-bottom: 15px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eIs this a genuine original part?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eYes, this is a genuine Mercury Quicksilver part, ensuring the highest standards of quality and fitment for your marine engine.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 15px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eHow do I know if it is compatible?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eWe recommend checking the SKU\/MPN and Cross Reference list provided above. If your original check valve matches 21-91933 or 21-426233, this is the correct part.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 0;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eWhat happens if this valve fails?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eA faulty check valve can lead to poor idling, excessive smoking, or oil accumulation in the cylinders. Replacing a clogged or leaking valve restores proper bleed system circulation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px; text-align: center; font-size: 14px; color: #7f8c8d; border-top: 1px solid #eee; padding-top: 20px;\"\u003e\n    \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please verify your engine serial number against the Mercury parts catalog to ensure exact fitment for your specific model year.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"4Boats","offers":[{"title":"Default Title","offer_id":56755455394166,"sku":"91933","price":11.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/8140\/9004\/files\/itm_91931__934_96977__979_97034_5b98e07e-c55b-47ee-97fa-f545d73dde34.jpg?v=1764337835","url":"https:\/\/www.leighnumberplates.com\/products\/dee-ring-316-inox-5-40mm-stainless-d-ring-4boats","provider":"Leigh Number Plates","version":"1.0","type":"link"}