{"product_id":"drain-screw-o-ring-for-johnson-evinrude-omc-stern-drive-replaces-omc-336982-pack-of-5","title":"Sierra 18-4253-9 Drain Screw O-Ring, Replaces 311598, Johnson\/Evinrude Outboard, Pack of 5","description":"\u003cp\u003eThe Sierra 18-4253-9 Drain Screw O-Ring is a rubber sealing ring designed to be used with the Sierra 18-2387 Drain Screw on Johnson\/Evinrude outboard engines and OMC stern drives. This O-ring creates the seal that keeps gear case lubricant contained around the drain screw threads, preventing leaks and water intrusion at one of the most commonly serviced points on an outboard lower unit. Because drain screw O-rings compress and take a permanent set each time the drain screw is removed for a gear lube change, they should be replaced every time the drain screw is pulled rather than reused, and keeping a supply on hand avoids a return trip to the parts counter mid-service.\u003c\/p\u003e\u003cp\u003eEach package contains five O-rings, made from black rubber for reliable resistance to gear lube and marine environments. Sierra parts are built to meet or exceed the specification of the original equipment part they replace, so this O-ring restores the factory seal without modification to the drain screw or gear case housing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4253-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 311598\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 5 O-rings per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed With:\u003c\/strong\u003e 18-2387 Drain Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282187118\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for use in Johnson\/Evinrude outboard engines and OMC stern drives, used with the Sierra 18-2387 Drain Screw.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e311598\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-4253-9 used for?\u003c\/strong\u003e It is a rubber O-ring that seals the Sierra 18-2387 Drain Screw on Johnson\/Evinrude outboard engines and OMC stern drives, preventing gear lube leaks and water intrusion at the drain screw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-4253-9 replace?\u003c\/strong\u003e Sierra 18-4253-9 replaces OEM part number 311598.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many O-rings come in a pack?\u003c\/strong\u003e Each package of the Sierra 18-4253-9 includes five drain screw O-rings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the drain screw O-ring made of?\u003c\/strong\u003e Black rubber, chosen for its resistance to gear lube and marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich drain screw does this O-ring fit?\u003c\/strong\u003e The 18-4253-9 O-ring is used with the Sierra 18-2387 Drain Screw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould the drain screw O-ring be replaced every time the drain screw is removed?\u003c\/strong\u003e Yes, once compressed and removed the O-ring takes a permanent set, so it is best practice to install a fresh 18-4253-9 O-ring each time the drain screw is pulled for a gear lube change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this O-ring fit stern drives as well as outboards?\u003c\/strong\u003e Yes, the 18-4253-9 O-ring is designed for use in Johnson\/Evinrude outboard engines and OMC stern drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a pack of these O-rings weigh?\u003c\/strong\u003e A package of five Sierra 18-4253-9 O-rings weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4253-9 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra aftermarket part built to meet or exceed the specification of the original 311598 equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the package?\u003c\/strong\u003e One package of the 18-4253-9 contains five black rubber drain screw O-rings, with no drain screw or other hardware included.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988172255451,"sku":"SIE-18-4253-9","price":2.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4253-9_lg__63121.1558126089.500.750.jpg?v=1785188269","url":"https:\/\/www.goodvibesmarina.com\/products\/drain-screw-o-ring-for-johnson-evinrude-omc-stern-drive-replaces-omc-336982-pack-of-5","provider":"Good Vibes Marina","version":"1.0","type":"link"}