{"product_id":"carburetor-service-valve-kit-fits-johnson-evinrude-9-9hp-15hp-replaces-175158-437228","title":"Carburetor Service Valve Kit – Fits Johnson\/Evinrude 9.9HP\/15HP (Replaces 175158, 437228)","description":"\u003csection\u003e\n\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis Carburetor Service Valve Kit is designed for Johnson\/Evinrude 9.9HP \u0026amp; 15HP 2-Stroke engines that use an electric primer valve. This kit converts the engine to a thru-the-primer maintenance system, simplifying the process of applying engine tuner or fogging oil. Note: This kit expressly excludes 1993 models of 9.9HP and 15HP engines.\u003c\/p\u003e\n\u003cp\u003eThis kit serves as a direct replacement for Sierra interchange numbers 18-7044 and 18-7044-1, as well as Johnson\/Evinrude OEM parts 175158 (service valve) and 437228 (cover \u0026amp; gasket assembly).\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAllows for direct injection of engine tuner and fogging oil through the primer system.\u003c\/li\u003e\n  \u003cli\u003eEngineered as a direct-fit replacement for the original components.\u003c\/li\u003e\n  \u003cli\u003eMaintains full functionality of the electric primer and its manual backup operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003cth\u003eSuperseded By\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-7044\u003c\/td\u003e\n        \u003ctd\u003e18-7044-1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-7044-1\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003e175158\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003e437228\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003eAll models with primer valve\u003c\/td\u003e\n        \u003ctd\u003e9.9, 15\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e175158, 437228\u003c\/td\u003e\n        \u003ctd\u003eExcludes 1993 9.9HP \u0026amp; 15HP models\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eCarburetor Service Valve Kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline (Marine)\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eFits OEM primer valve systems\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.2 lbs (0.09 kg)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eAllows injection of engine tuner and fogging oil through primer valve while maintaining primer functionality\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Service Valve w\/ O-ring (Replaces 175158)\u003c\/li\u003e\n  \u003cli\u003e1 x Cover \u0026amp; Gasket Assembly (Replaces 437228)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eFor safety, disconnect the battery and fuel line.\u003c\/li\u003e\n  \u003cli\u003eLocate and access the electric primer valve on the engine.\u003c\/li\u003e\n  \u003cli\u003eCarefully remove the original cover and gasket assembly.\u003c\/li\u003e\n  \u003cli\u003eRemove the old service valve it covers.\u003c\/li\u003e\n  \u003cli\u003eInstall the new service valve with its supplied O-ring, ensuring a secure fit.\u003c\/li\u003e\n  \u003cli\u003ePlace the new cover and gasket assembly over the valve.\u003c\/li\u003e\n  \u003cli\u003eSecure the new cover according to the engine manufacturer's torque specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect the fuel line and battery, then check for leaks and test the primer's function.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the purpose of this service valve kit?\u003c\/summary\u003e\u003cp\u003eThis kit allows engines with an electric primer to be converted to a thru-the-primer maintenance system. It enables the easy injection of engine tuner and fogging oil directly through the primer valve, making regular maintenance more efficient.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill I lose my primer function after installing this?\u003c\/summary\u003e\u003cp\u003eNo. Both the electric primer and its manual backup operation remain fully functional and unchanged after installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this kit fit 1993 Johnson\/Evinrude 9.9HP or 15HP models?\u003c\/summary\u003e\u003cp\u003eNo. The compatibility data explicitly excludes the 1993 model year for both 9.9HP and 15HP Johnson\/Evinrude engines.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I use the valve for maintenance?\u003c\/summary\u003e\u003cp\u003eAfter installation, you can inject approved engine tuner or fogging oil directly into the service port on the valve. This provides a simple, direct path into the fuel system for maintenance without disassembly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are signs my original valve might need replacing?\u003c\/summary\u003e\u003cp\u003eSigns of failure in the original primer system can include fuel leaks around the primer valve, difficulty starting the engine, or a primer that no longer functions correctly when activated.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a direct replacement for Sierra part 18-7044?\u003c\/summary\u003e\u003cp\u003eYes. Sierra 18-7044 was superseded by part number 18-7044-1, which is included in this kit. It is a direct, updated replacement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723776299323,"sku":"24CR454","price":12.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Carburetor_Repair_Kit_for_Johnson_Evinrude_OMC__99-15_HP_175158_-_JLM_MARINE-8290609.jpg?v=1763031542","url":"https:\/\/seasierra.com\/products\/carburetor-service-valve-kit-fits-johnson-evinrude-9-9hp-15hp-replaces-175158-437228","provider":"SeaSierra","version":"1.0","type":"link"}