{"product_id":"sierra-18-4255-e-tec-drain-screw-allan-head-replaces-oem-307551-for-evinrude-e-tec-outboards","title":"Sierra E-TEC Drain Screw 18-4255, Replaces 309243, Fits 40-50 HP Cobra Drives (1989-97)","description":"\u003cp\u003eThe Sierra E-TEC Drain Screw, part number 18-4255, is a replacement gearcase drain screw engineered for outboard motors using Cobra Drives rated 40-50 HP (1989-97). It directly replaces OEM number 309243, making it a straightforward swap when the original screw is worn, stripped, or lost during a gear lube service.\u003c\/p\u003e\u003cp\u003eThe screw uses an Allan head design, allowing it to be driven with a hex key for a secure fit and reliable removal during routine gearcase maintenance. Sierra manufactures this drain screw to meet or exceed the specifications of the original equipment part it replaces, and it is backed by Sierra's standard customer satisfaction warranty. This is a compact, low-weight component intended for gearcase oil drain and fill points where a dependable, properly sized screw is essential to prevent leaks.\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 18-4255\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style:\u003c\/strong\u003e Allan Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282200411\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e40-50 HP (1989-97)\u003c\/li\u003e\n\u003cli\u003eCobra Drives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e309243\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does Sierra part 18-4255 fit?\u003c\/strong\u003e Sierra 18-4255 is designed for outboards with Cobra Drives rated 40-50 HP (1989-97).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this drain screw replace?\u003c\/strong\u003e The Sierra E-TEC Drain Screw 18-4255 replaces OEM number 309243.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat tool do I need to remove or install this screw?\u003c\/strong\u003e An Allan (hex) key is required, since the 18-4255 drain screw uses an Allan head design rather than a slotted or Phillips head.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4255 drain screw weigh?\u003c\/strong\u003e This drain screw weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-4255 drain screw?\u003c\/strong\u003e The Sierra E-TEC Drain Screw measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4255 an OEM part or aftermarket?\u003c\/strong\u003e 18-4255 is a Sierra aftermarket replacement part, manufactured to meet or exceed the specifications of the original equipment drain screw it replaces (OEM 309243).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this drain screw come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-4255 E-TEC Drain Screw is covered under Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this drain screw?\u003c\/strong\u003e Replace the 18-4255 drain screw when the original gearcase drain screw on a 40-50 HP Cobra Drive outboard is worn, stripped, or lost during a gear lube change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for Sierra 18-4255?\u003c\/strong\u003e The UPC for the Sierra E-TEC Drain Screw 18-4255 is 808282200411.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-4255 the same as OEM 309243?\u003c\/strong\u003e Sierra 18-4255 is a direct replacement for OEM part 309243, engineered to the same fit and function.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988178415835,"sku":"SIE-18-4255","price":4.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4255_lg__21759.1558126313.500.750.jpg?v=1785188455","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-4255-e-tec-drain-screw-allan-head-replaces-oem-307551-for-evinrude-e-tec-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}