{"product_id":"18-7170-sierra-sealing-o-ring-replaces-mercury-25-33504","title":"18-7170 SIERRA  Sealing O-ring Replaces Mercury 25-33504","description":"\u003cp\u003e18-7170 SIERRA SEALING O-RING High-performance elastomer o-ring designed for Mercury marine engine sealing applications. This OEM-equivalent component replaces Mercury part 25-33504, providing dependable fluid retention in fuel injectors, cooling manifolds, and accessory housings. Manufactured from an advanced marine-grade elastomer that resists saltwater exposure, fuel degradation, and extreme temperature variations. The o-ring maintains consistent sealing integrity and compression characteristics throughout extended service life, preventing leakage and contamination. Essential for preventive maintenance, fuel system repairs, or complete engine restoration on Mercury-equipped marine powerplants. Delivers reliable performance and maximized durability in challenging saltwater environments.\u003c\/p\u003e","brand":"May Marine","offers":[{"title":"Default Title","offer_id":43852665651299,"sku":null,"price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/5651\/2867\/files\/18-7170.webp?v=1766013915","url":"https:\/\/maymarine98528.myshopify.com\/products\/18-7170-sierra-sealing-o-ring-replaces-mercury-25-33504","provider":"May Marine","version":"1.0","type":"link"}