{"product_id":"fuel-pump-repair-kit-18-7818-1-for-mercury-115-hp-4-cylinder-outboards-serial-b209468-up","title":"EMP Fuel Pump Repair Kit 1399-39030, Replaces Mercury 18-7818-1, Fits 115 HP 4-Cylinder Outboards Serial B209468 \u0026 Up","description":"\u003cp\u003eThe EMP Fuel Pump Repair Kit 1399-39030 is a replacement fuel pump rebuild kit for Mercury 115 HP 4-cylinder outboard engines, serial number B209468 and up. It is built as a direct equivalent to the Mercury Quicksilver fuel pump kit 18-7818-1, giving outboard owners and marine repair shops a way to restore fuel pump function on qualifying engines without sourcing the original manufacturer part. Fuel pump diaphragms and internal components wear over time from constant flexing and exposure to ethanol-blended fuel, leading to low fuel pressure, hard starting, stalling at idle, or a rich\/lean running condition. This kit is intended to service the fuel pump on the applicable Mercury 115 HP 4-cylinder powerhead so the pump can be rebuilt in place rather than replaced as a complete assembly.\u003c\/p\u003e\u003cp\u003eBecause fitment on outboard fuel pumps is tied to the engine's serial number range, confirm the engine falls within serial number B209468 and up before ordering, as earlier serial numbers may use a different fuel pump kit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e EMP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 1399-39030\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Mercury Outboard Fuel Pump Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e Mercury 115 HP, 4 Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerial Number Range:\u003c\/strong\u003e B209468 and up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.033 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 840080472164\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury 115 HP, 4 Cylinder outboard, serial number B209468 and up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e18-7818-1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engine does the EMP 1399-39030 fuel pump kit fit?\u003c\/strong\u003e It fits Mercury 115 HP, 4-cylinder outboard engines with serial number B209468 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 1399-39030 replace the Mercury 18-7818-1 fuel pump kit?\u003c\/strong\u003e Yes, EMP 1399-39030 is a direct replacement for Mercury Quicksilver fuel pump kit 18-7818-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this fuel pump kit weigh?\u003c\/strong\u003e The EMP fuel pump repair kit 1399-39030 weighs 0.033 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my engine's serial number qualifies for this kit?\u003c\/strong\u003e Check the serial number plate on the Mercury 115 HP 4-cylinder powerhead; this kit, 1399-39030, applies to serial number B209468 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM Mercury part or an aftermarket replacement?\u003c\/strong\u003e EMP 1399-39030 is an aftermarket fuel pump repair kit manufactured as a functional replacement for Mercury part 18-7818-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate I need to rebuild my outboard's fuel pump?\u003c\/strong\u003e Hard starting, stalling at idle, and low fuel pressure on a Mercury 115 HP 4-cylinder outboard commonly point to a worn fuel pump that this repair kit, 1399-39030, is designed to service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this kit on a 6-cylinder Mercury outboard?\u003c\/strong\u003e No, EMP 1399-39030 is specified for the 115 HP 4-cylinder Mercury outboard, not 6-cylinder engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The EMP Fuel Pump Repair Kit 1399-39030 has UPC 840080472164.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this kit work on engines with a serial number below B209468?\u003c\/strong\u003e This is not confirmed; 1399-39030 is specified for serial number B209468 and up, so an engine below that range may require a different fuel pump kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat part number should I reference when ordering this kit?\u003c\/strong\u003e Order using EMP part number 1399-39030, which cross-references to Mercury 18-7818-1.\u003c\/p\u003e","brand":"EMP","offers":[{"title":"Default Title","offer_id":48991280890075,"sku":"EMP-1399-39030","price":13.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/EMP_1399-39030_Mercury_Mariner_Fuel_Pump_rebuild_kit__38287.1722346417.500.750.jpg?v=1785329105","url":"https:\/\/www.goodvibesmarina.com\/products\/fuel-pump-repair-kit-18-7818-1-for-mercury-115-hp-4-cylinder-outboards-serial-b209468-up","provider":"Good Vibes Marina","version":"1.0","type":"link"}