{"product_id":"sierra-18-7811-marine-fuel-pump-kit-replaces-mercury-89031a1-66599a1-for-mercury-mariner-outboards","title":"Sierra 18-7811 Fuel Pump Kit, Replaces Mercury Marine 89031A1, for Mercury\/Mariner Outboard Motors","description":"\u003cp\u003eThe Sierra 18-7811 Fuel Pump Kit is a replacement fuel pump rebuild kit designed for Mercury and Mariner outboard motors. It is built to restore proper fuel delivery on outboards using the original Mercury Marine 89031A1 fuel pump, giving boat owners a straightforward way to replace worn pump components without sourcing a full new pump assembly.\u003c\/p\u003e\u003cp\u003eThe kit includes the O-rings needed to properly seal the fuel pump during a rebuild, specifically O-Ring 18-7411 and O-Ring 18-7120. These sealing components are critical to preventing fuel leaks and maintaining consistent fuel pressure once the pump is reinstalled. Because fuel pump kits are fit specific, buyers should confirm part numbers against their existing pump before ordering to ensure proper fit.\u003c\/p\u003e\u003cp\u003eThis kit is intended as a direct equivalent to the OEM Mercury Marine 89031A1 fuel pump kit, and is cross-referenced to several other aftermarket part numbers for buyers searching by a different brand's catalog number. It ships as a single kit unit, making it a compact, low-cost solution for routine outboard fuel system maintenance.\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 18-7811\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Fuel Pump Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e O-Ring 18-7411, O-Ring 18-7120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999322968\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury outboard motors\u003c\/li\u003e\n\u003cli\u003eMariner outboard motors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 89031A1\u003c\/li\u003e\n\u003cli\u003eMercury 66599A1\u003c\/li\u003e\n\u003cli\u003eGLM 40350\u003c\/li\u003e\n\u003cli\u003eMallory 9-37756\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-7811 Fuel Pump Kit?\u003c\/strong\u003e The Sierra 18-7811 Fuel Pump Kit includes O-Ring 18-7411 and O-Ring 18-7120, the sealing components needed to rebuild a Mercury\/Mariner outboard fuel pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich outboard motors does the Sierra 18-7811 fit?\u003c\/strong\u003e This kit is designed for Mercury and Mariner outboard motors. Since fuel pump kits are fit specific, confirm the existing pump's part number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-7811 replace the Mercury Marine 89031A1 fuel pump?\u003c\/strong\u003e Yes, the Sierra 18-7811 Fuel Pump Kit is a direct equivalent to the Mercury Marine 89031A1 fuel pump kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there other part numbers that cross-reference to the Sierra 18-7811?\u003c\/strong\u003e The Sierra 18-7811 is interchangeable with Mercury 66599A1, GLM 40350, and Mallory 9-37756.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-7811 Fuel Pump Kit weigh?\u003c\/strong\u003e The kit weighs 0.03 pounds, making it a lightweight, compact rebuild kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-7811 kit packaging?\u003c\/strong\u003e The Sierra 18-7811 Fuel Pump Kit measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7811 an OEM or aftermarket part?\u003c\/strong\u003e The Sierra 18-7811 is an aftermarket kit manufactured to match the specifications of the OEM Mercury Marine 89031A1 fuel pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many units come in one Sierra 18-7811 kit?\u003c\/strong\u003e Each Sierra 18-7811 Fuel Pump Kit is sold as a single kit containing one set of O-rings (18-7411 and 18-7120).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-7811 kit stop fuel leaks from my outboard's fuel pump?\u003c\/strong\u003e Replacing worn O-rings with the ones in the 18-7811 kit, O-Ring 18-7411 and O-Ring 18-7120, is intended to restore a proper seal and address leaks caused by degraded pump gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the Sierra 18-7811 kit on a Mariner outboard as well as a Mercury?\u003c\/strong\u003e Yes, the Sierra 18-7811 Fuel Pump Kit is designed to fit both Mercury and Mariner outboard motors that use the corresponding fuel pump.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988388425947,"sku":"SIE-18-7811","price":10.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7811_lg__62074.1558130876.500.750.jpg?v=1785188631","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7811-marine-fuel-pump-kit-replaces-mercury-89031a1-66599a1-for-mercury-mariner-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}