{"product_id":"fuel-injector-assembly-fits-honda-bf40d-bf50d-40-50hp-replaces-16450-zz5-003","title":"Fuel Injector Assembly – Fits Honda BF40D\/BF50D 40-50HP (Replaces 16450-ZZ5-003)","description":"\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\u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis high-performance \u003cstrong\u003eFuel Injector Assembly – Fits Honda BF40D\/BF50D 40-50HP Outboard Engines (Replaces 16450-ZZ5-003)\u003c\/strong\u003e is engineered for Honda Marine's 40-50HP, 4-stroke outboard engines, specifically the BF40D and BF50D series from the 2000s with BBDJ\/BBEJ serial prefixes.\u003c\/p\u003e\n    \u003cp\u003eIt serves as a direct aftermarket replacement for Honda part 16450-ZZ5-003 and provides an equivalent for JESBEN 16450ZZ5003 and KEIITYEN 16450-ZZ5-003.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003eOffers a direct OEM replacement fit for straightforward installation.\u003c\/li\u003e\n        \u003cli\u003eFlow-matched to OEM standards to ensure optimal fuel delivery and engine performance.\u003c\/li\u003e\n        \u003cli\u003eEach unit is 100% tested for internal coil resistance and fuel flow rate before shipping.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\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                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eHonda\u003c\/td\u003e\n                    \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eJESBEN\u003c\/td\u003e\n                    \u003ctd\u003e16450ZZ5003\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eKEIITYEN\u003c\/td\u003e\n                    \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n    \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n    \u003cp\u003eFor Honda owners: Please verify your engine’s model and serial number prefix (e.g., BBDJ, BBEJ) against this list to ensure proper fitment for your 40HP or 50HP outboard.\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\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF40D LHA\u003c\/td\u003e\n            \u003ctd\u003e40\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBDJ-1000001 - BBDJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF40D LRTA\u003c\/td\u003e\n            \u003ctd\u003e40\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBDJ-1000001 - BBDJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF40DK2 LHA\u003c\/td\u003e\n            \u003ctd\u003e40\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBDJ-1100001 - BBDJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF40DK2 LRTA\u003c\/td\u003e\n            \u003ctd\u003e40\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBDJ-1100001 - BBDJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF40DK4 LHA\u003c\/td\u003e\n            \u003ctd\u003e40\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBDJ-1300001 - BBDJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF40DK4 LRTA\u003c\/td\u003e\n            \u003ctd\u003e40\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBDJ-1300001 - BBDJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF50D LRTA\u003c\/td\u003e\n            \u003ctd\u003e50\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBEJ-1000001 - BBEJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF50D XRTA\u003c\/td\u003e\n            \u003ctd\u003e50\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBEJ-1000001 - BBEJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF50DK2 LRTA\u003c\/td\u003e\n            \u003ctd\u003e50\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBEJ-1100001 - BBEJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF50DK2 XRTA\u003c\/td\u003e\n            \u003ctd\u003e50\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBEJ-1100001 - BBEJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF50DK4 LRTA\u003c\/td\u003e\n            \u003ctd\u003e50\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBEJ-1300001 - BBEJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eHonda\u003c\/td\u003e\n            \u003ctd\u003eBF50DK4 XRTA\u003c\/td\u003e\n            \u003ctd\u003e50\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e16450-ZZ5-003\u003c\/td\u003e\n            \u003ctd\u003eBBEJ-1300001 - BBEJ-9999999\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n    \u003cdl\u003e\n        \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eFuel Injector Assembly\u003c\/dd\u003e\n        \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n        \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n        \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eElectrical connector with fuel line\u003c\/dd\u003e\n        \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMetal\u003c\/dd\u003e\n        \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\/metallic\u003c\/dd\u003e\n        \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e8 cm x 4.5 cm x 3.5 cm\u003c\/dd\u003e\n        \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.023 kg (0.05 lbs)\u003c\/dd\u003e\n        \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003e6-hole injector nozzle\u003c\/dd\u003e\n        \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eFlow matched to OEM standards, 100% tested for internal coil resistance and fuel flow rate\u003c\/dd\u003e\n        \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 Year (aftermarket versions)\u003c\/dd\u003e\n    \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Fuel Injector Assembly (16450-ZZ5-003)\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n    \u003col\u003e\n        \u003cli\u003eDisconnect the negative battery terminal and relieve all pressure from the fuel system.\u003c\/li\u003e\n        \u003cli\u003eCarefully disconnect the electrical connector and fuel line from the old injector.\u003c\/li\u003e\n        \u003cli\u003eRemove the fuel rail assembly to access the injectors.\u003c\/li\u003e\n        \u003cli\u003eRemove the old injector from the fuel rail.\u003c\/li\u003e\n        \u003cli\u003eLubricate the O-rings on the new injector with clean engine oil before installation.\u003c\/li\u003e\n        \u003cli\u003ePress the new injector firmly into the fuel rail and intake manifold, ensuring it is properly seated.\u003c\/li\u003e\n        \u003cli\u003eRe-secure the fuel rail and torque its bolts to the manufacturer's specification.\u003c\/li\u003e\n        \u003cli\u003eReconnect the fuel line and electrical connector.\u003c\/li\u003e\n        \u003cli\u003eReconnect the battery, prime the fuel system, and carefully check for any leaks before starting the engine.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow do I know if my fuel injector is failing?\u003c\/summary\u003e\n        \u003cp\u003eCommon signs include engine misfires, rough idling, poor acceleration, increased fuel consumption, or difficulty starting. A \"check engine\" light may also illuminate.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eIs this injector sold individually or as a set?\u003c\/summary\u003e\n        \u003cp\u003eThis listing is for a single (1) fuel injector assembly. While you can replace just one, it is often recommended to replace them as a full set to ensure balanced cylinder performance and fuel delivery.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat is the benefit of a \"flow-matched\" injector?\u003c\/summary\u003e\n        \u003cp\u003eFlow matching ensures that each injector delivers the same amount of fuel under identical conditions. This leads to a smoother running engine, balanced power across all cylinders, and optimal fuel efficiency.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWill this fit my Honda BF40A model?\u003c\/summary\u003e\n        \u003cp\u003eNo, this injector is specifically for the newer \"D\" models (BF40D\/BF50D) as indicated by the compatible serial number prefixes (BBDJ\/BBEJ). Always check your engine's specific part number and serial range before ordering.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat is the recommended replacement interval for fuel injectors?\u003c\/summary\u003e\n        \u003cp\u003eThere is no fixed interval; replacement is typically done when performance issues are diagnosed. Injector lifespan can be extended by using high-quality marine fuel and replacing fuel filters regularly.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n        \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials, manufactured in an ISO 9002 facility, and batch-inspected for consistency.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n        \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n        \u003cp\u003eThis product is covered 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 for unused items in their original condition. See our policy page or reach out for instructions.\u003c\/p\u003e\n    \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003eVerify images and specifications against your original part before purchase. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n        \u003cli\u003eThis is an aftermarket replacement part, not an OEM component. Brand names and part numbers are used for reference purposes only.\u003c\/li\u003e\n        \u003cli\u003eProfessional installation is recommended for safety and performance. Improper installation can lead to fuel leaks or engine damage.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days, getting you back on the water faster.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We offer fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723974119739,"sku":"25FUI457","price":26.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/25FUI457_90135120-539e-426c-8b26-162f96f5b202.jpg?v=1763038942","url":"https:\/\/seasierra.com\/products\/fuel-injector-assembly-fits-honda-bf40d-bf50d-40-50hp-replaces-16450-zz5-003","provider":"SeaSierra","version":"1.0","type":"link"}