{"product_id":"water-pump-impeller-kit-with-housing-fits-yamaha-4-stroke-50-115-hp-outboards-replaces-68v-w0078-01-00","title":"Water Pump Impeller Kit with Housing – Fits Yamaha 4-Stroke 50-115 HP Outboards (Replaces 68V-W0078-01-00)","description":"\u003csection\u003e\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 complete \u003cstrong\u003eWater Pump Impeller Kit with Housing\u003c\/strong\u003e is a direct-fit replacement for Yamaha 4-stroke outboard motors from 50 to 115 HP, including models F75, F90, F115, LF115, VF115, and VF90 from 2004 and newer (excluding 115B models).\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct interchange for Yamaha part numbers 68V-W0078-01-00 and 68V-W0078-00-00, as well as aftermarket equivalents including Sierra 18-3523-1 and Mallory 9-48611.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect replacement installation requires no modifications.\u003c\/li\u003e\n\u003cli\u003eFeatures a durable neoprene impeller and robust nylon housing for reliable performance in marine environments.\u003c\/li\u003e\n\u003cli\u003eKit contains all necessary gaskets, o-rings, and hardware for a complete overhaul.\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\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00\u003c\/td\u003e\n        \u003ctd\u003eSupersedes 68V-W0078-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3523-1\u003c\/td\u003e\n        \u003ctd\u003eComplete kit with housing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3442\u003c\/td\u003e\n        \u003ctd\u003eInterchange kit (no housing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-48611\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eUanofCn\u003c\/td\u003e\n        \u003ctd\u003e68VW0078\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\u003cp\u003eDesigned for select Yamaha 4-stroke outboard engines.\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\u003eYears\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\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF75\u003c\/td\u003e\n        \u003ctd\u003e75\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2006–Up\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00, 68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF90\u003c\/td\u003e\n        \u003ctd\u003e90\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2006–Up\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00, 68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eVF90\u003c\/td\u003e\n        \u003ctd\u003e90\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2006–Up\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00, 68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF115\u003c\/td\u003e\n        \u003ctd\u003e115\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2004–Up\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00, 68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eExcept 115B models\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eLF115\u003c\/td\u003e\n        \u003ctd\u003e115\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2004–Up\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00, 68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eVF115\u003c\/td\u003e\n        \u003ctd\u003e115\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2004–Up\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00, 68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF50\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2004–Up\u003c\/td\u003e\n        \u003ctd\u003e68V-W0078-01-00, 68V-W0078-00-00\u003c\/td\u003e\n        \u003ctd\u003eSome listings include F50 compatibility\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\u003eWater Pump Impeller Kit with Housing\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eNylon PA66 Plastic, SS316 Stainless Steel (Insert Cup and Plate)\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eNeoprene\u003c\/dd\u003e\n  \u003cdt\u003eO-Ring Material\u003c\/dt\u003e\n\u003cdd\u003eNeoprene\u003c\/dd\u003e\n  \u003cdt\u003ePackage Dimensions\u003c\/dt\u003e\n\u003cdd\u003e165 × 124 × 96 mm (6.5 × 4.88 × 3.78 inches)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.64 kg (1.42 lb)\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 Water Pump Housing (61A-44311-01-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Base Outer Plate (68V-44323-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Housing Insert Cup (61A-44322-01-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Impeller (6E5-44352-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Impeller Key (90280-04M05-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Gasket (6E5-44315-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x O-Ring (93210-37160-00)\u003c\/li\u003e\n  \u003cli\u003e1 x O-Ring (93210-86M38-00)\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Bolt (91290-08045-00)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e2 x Dowel Pin (93606-12019-00)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and remove the engine cover.\u003c\/li\u003e\n  \u003cli\u003eDrain the lower unit gear lube.\u003c\/li\u003e\n  \u003cli\u003eRemove the propeller and unbolt the lower unit (gearcase) from the upper housing.\u003c\/li\u003e\n  \u003cli\u003eCarefully lower the gearcase to expose the water pump assembly.\u003c\/li\u003e\n  \u003cli\u003eUnbolt and remove the old water pump housing and its components, noting the orientation of all parts.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surfaces, ensuring they are free of old gasket material and debris.\u003c\/li\u003e\n  \u003cli\u003eInstall the new components from the kit in the reverse order of removal.\u003c\/li\u003e\n  \u003cli\u003eLightly lubricate the new impeller and housing interior with marine grease or soapy water before sliding the housing down over the impeller while turning the driveshaft clockwise.\u003c\/li\u003e\n  \u003cli\u003eInstall all new gaskets and O-rings provided to ensure a proper seal.\u003c\/li\u003e\n  \u003cli\u003eSecure the new housing with the provided bolts, tightening them to the manufacturer's specified torque in a crisscross pattern.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit and propeller, then refill the gearcase with the correct grade and amount of lube.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and test run the engine in water, confirming a strong, steady stream from the tell-tale outlet.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if this kit fits my Yamaha outboard?\u003c\/summary\u003e\u003cp\u003eThis kit is designed for specific Yamaha 4-stroke models (F75, F90, F115, LF115, VF115) from 2004 and newer. It may also fit some F50 models. Always check the \"Engine \u0026amp; Model Compatibility\" table and compare your engine's model\/serial number before ordering. Note that this kit does not fit 115B models.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include the engine overheating at idle or low speeds, a weak or intermittent water stream from the \"tell-tale\" outlet, and a dry, cracked, or brittle impeller with a set-in-blades shape upon inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the water pump impeller be replaced?\u003c\/summary\u003e\u003cp\u003eFor preventative maintenance, we recommend inspecting and\/or replacing the impeller every 100-200 operating hours or at least once a year, whichever comes first. Replacement is especially critical if operating in saltwater or sandy\/silty conditions.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a complete kit? Do I need to buy other parts?\u003c\/summary\u003e\u003cp\u003eYes, this is a comprehensive kit that includes the housing, impeller, face plate, insert cup, gaskets, o-rings, bolts, and dowel pins required for a standard replacement. Refer to the \"What’s in the Box\" section for a full list of contents.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat's the difference between Yamaha part 68V-W0078-00-00 and 68V-W0078-01-00?\u003c\/summary\u003e\u003cp\u003ePart number 68V-W0078-01-00 is the direct supersession for 68V-W0078-00-00. They are functionally identical, and this kit is a confirmed replacement for both OEM part numbers.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this kit fit my F50? The compatibility seems unclear.\u003c\/summary\u003e\u003cp\u003eWhile some sources indicate compatibility with Yamaha F50 models from 2004 onwards, this can vary between specific engine serial numbers. We strongly recommend you physically inspect your existing water pump or consult your service manual to confirm part numbers before ordering for an F50 engine.\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\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718263968059,"sku":"77-9CHR-GQPZ","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/77-9CHR-GQPZ.png?v=1762958451","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-kit-with-housing-fits-yamaha-4-stroke-50-115-hp-outboards-replaces-68v-w0078-01-00","provider":"SeaSierra","version":"1.0","type":"link"}