{"product_id":"johnson-pump-f5b-9-service-kit-09-45913","title":"Johnson Pump F5B-9 Service Kit 09-45913","description":"\u003cp class=\"nvn-hero\"\u003eThe Johnson 09-45913 service kit rebuilds your F5B-9 flexible-impeller pump in one box. You get the 09-801B impeller, shaft seal, cover gasket, three o-rings and the end cover screws, every wear part that pump needs. One kit, one afternoon, and you're back to full water flow instead of chasing part numbers.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eWhen your Johnson F5B-9 pump starts weeping at the cover or pushing less water than it used to, this is the box you want on the bench. The 09-45913 service kit gathers every wear part that pump needs for a full rebuild, so you're not chasing individual part numbers across three different orders. One kit, one afternoon, back on the water.\u003c\/p\u003e\n\u003cp\u003eInside you get the 09-801B flexible impeller, the 0.2233.001 shaft seal, a fresh cover gasket, three o-rings (01-42636, 01-42401 and 01-45930), and the end cover screws (01-46794-04, plus 0.0141.500 and 0.0141.901). Those are the parts that actually fail. The impeller vanes take a set and lose their bite, the seal starts to weep, and the o-rings swell and harden after a few seasons of heat and fuel vapor. Swap them all at once and the pump comes back to spec instead of limping along.\u003c\/p\u003e\n\u003cp\u003eThis kit fits the Johnson F5B-9 flexible-impeller pump. If you're rebuilding one of those, the part numbers line up and you won't be left guessing. It's a common raw-water pump on smaller powerboats and sailboats, and this kit is sized for that kind of duty. It's not the right choice for a continuous-duty washdown pump that runs for hours at a stretch, so match the kit to the pump you actually have.\u003c\/p\u003e\n\u003cp\u003eA few things we've learned rebuilding these. First, watch impeller rotation. The 09-801B seats one way, and if you run it backward on start-up it'll shred the vanes in minutes. Check the arrow and the direction your engine turns the pump before you close it up. Second, the seal. That 0.2233.001 seal presses in clean if you use the right driver, but forcing it in crooked will cook it. If your housing is already scored or pitted, a lot of folks refresh the housing at the same time so the new seal has a smooth bore to ride against.\u003c\/p\u003e\n\u003cp\u003eThe o-rings matter more than people think. All three (01-42636, 01-42401, 01-45930) live in the wet path, and they swell when they've been sitting in fuel-laden bilge air. Don't reuse the old ones just because they look okay. They're in the kit for a reason, so swap all three while you're in there. Same story with the gasket and cover alignment. Get the cover square before you snug it down, because a gasket that's pinched or offset weeps the moment you prime the pump.\u003c\/p\u003e\n\u003cp\u003eTorque the end cover screws to spec and add a dab of thread locker. Those small screws thread into aluminum, and they'll strip if you overtighten them or back out if you run them dry. Snug and locked, not gorilla-tight. Get that right and the cover seals flat with no dribble down the front of the pump.\u003c\/p\u003e\n\u003cp\u003eDone properly, a full kit like this buys you two to three more seasons out of a pump, especially if the old impeller had already started scoring the housing. It's cheap insurance against an overheat alarm on a hot afternoon miles from the ramp. If you run this pump for engine cooling, a fresh impeller is the difference between a normal day and a tow home. Keep a spare kit aboard if you cruise far from parts.\u003c\/p\u003e\n\u003cp\u003eNot sure whether your pump is the F5B-9? Check the casting number and the impeller you pull out. If it's the 09-801B, this is your kit. And if you're the type who services on a schedule instead of waiting for a failure, this is the once-a-couple-seasons refresh that keeps the whole cooling system honest. Lay the old parts out next to the new ones as you go, so you can see exactly how far the impeller vanes and o-rings had worn before they let you down. That side-by-side is the best reminder to keep this kit in your regular maintenance rotation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e09-801B flexible impeller included, the part that loses its bite first and drops your water flow\u003c\/li\u003e\n  \u003cli\u003e0.2233.001 shaft seal included, stops the weep at the shaft before it reaches the bearing\u003c\/li\u003e\n  \u003cli\u003eThree o-rings (01-42636, 01-42401, 01-45930) so every seal in the wet path gets replaced at once\u003c\/li\u003e\n  \u003cli\u003eCover gasket included, seals the end cover flat with no dribble down the pump face\u003c\/li\u003e\n  \u003cli\u003eEnd cover screws (01-46794-04, 0.0141.500, 0.0141.901) so you're not reusing stripped fasteners\u003c\/li\u003e\n  \u003cli\u003eFits the Johnson F5B-9 flexible-impeller pump, part numbers matched so there's no guesswork\u003c\/li\u003e\n  \u003cli\u003eEverything for a full rebuild in one box, no chasing individual part numbers\u003c\/li\u003e\n  \u003cli\u003eSized for smaller powerboat and sailboat raw-water pump duty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Johnson Pump reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat pump does the 09-45913 kit fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's built for the Johnson F5B-9 flexible-impeller pump. If the impeller you pull out is a 09-801B, this is the right kit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's included in the kit?\u003c\/summary\u003e\n    \u003cp\u003eThe 09-801B impeller, the 0.2233.001 shaft seal, a cover gasket, three o-rings (01-42636, 01-42401, 01-45930), and the end cover screws (01-46794-04, 0.0141.500, 0.0141.901).\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I rebuild the pump?\u003c\/summary\u003e\n    \u003cp\u003eMany owners refresh on a schedule every couple of seasons. A full kit can add two to three more seasons of service, especially if the old impeller had started scoring the housing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to replace all three o-rings?\u003c\/summary\u003e\n    \u003cp\u003eYes. All three sit in the wet path and swell over time. They're in the kit for a reason, so swap them together rather than reusing the old ones.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAny tips for installing the impeller?\u003c\/summary\u003e\n    \u003cp\u003eWatch the rotation. The 09-801B seats one direction, and running it backward on start-up shreds the vanes fast. Check the arrow against the way your engine turns the pump before you close the cover.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy does my new seal keep leaking?\u003c\/summary\u003e\n    \u003cp\u003eA crooked press or a scored housing bore is usually the cause. Use the correct driver to seat the 0.2233.001 seal square. If the housing is pitted, refresh it so the seal has a smooth surface to ride against.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow tight should the end cover screws be?\u003c\/summary\u003e\n    \u003cp\u003eTorque them to spec and add a little thread locker. They thread into aluminum, so they strip if overtightened and back out if run dry. Snug and locked is the goal.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this kit right for a washdown pump?\u003c\/summary\u003e\n    \u003cp\u003eIt's sized for smaller powerboat and sailboat pump duty. It isn't the pick for a continuous-duty washdown pump running for hours at a time, so match the kit to the pump you actually have.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eJohnson Pump 09-45913 F5B-9 Raw-Water Pump Service Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eJohnson Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e09-45913\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e7330717002855\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFits Pump Series\u003c\/th\u003e\n\u003ctd\u003eJohnson F5B-9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eKit Type\u003c\/th\u003e\n\u003ctd\u003eRaw-water flexible-impeller pump service kit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eImpeller\u003c\/th\u003e\n\u003ctd\u003e09-801B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eShaft Seal\u003c\/th\u003e\n\u003ctd\u003e0.2233.001\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eGasket\u003c\/th\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eO-Rings\u003c\/th\u003e\n\u003ctd\u003e01-42636, 01-42401, 01-45930\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEnd Cover Screws\u003c\/th\u003e\n\u003ctd\u003e01-46794-04, 0.0141.500, 0.0141.901\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eIncludes\u003c\/th\u003e\n\u003ctd\u003eImpeller, shaft seal, gasket, o-rings, end cover screws\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eJohnson Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What pump does the 09-45913 kit fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's built for the Johnson F5B-9 flexible-impeller pump. If the impeller you pull out is a 09-801B, this is the right kit.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's included in the kit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The 09-801B impeller, the 0.2233.001 shaft seal, a cover gasket, three o-rings (01-42636, 01-42401, 01-45930), and the end cover screws (01-46794-04, 0.0141.500, 0.0141.901).\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How often should I rebuild the pump?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Many owners refresh on a schedule every couple of seasons. A full kit can add two to three more seasons of service, especially if the old impeller had started scoring the housing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to replace all three o-rings?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. All three sit in the wet path and swell over time. They're in the kit for a reason, so swap them together rather than reusing the old ones.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Any tips for installing the impeller?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Watch the rotation. The 09-801B seats one direction, and running it backward on start-up shreds the vanes fast. Check the arrow against the way your engine turns the pump before you close the cover.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why does my new seal keep leaking?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A crooked press or a scored housing bore is usually the cause. Use the correct driver to seat the 0.2233.001 seal square. If the housing is pitted, refresh it so the seal has a smooth surface to ride against.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How tight should the end cover screws be?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Torque them to spec and add a little thread locker. They thread into aluminum, so they strip if overtightened and back out if run dry. Snug and locked is the goal.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this kit right for a washdown pump?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's sized for smaller powerboat and sailboat pump duty. It isn't the pick for a continuous-duty washdown pump running for hours at a time, so match the kit to the pump you actually have.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Johnson Pump","offers":[{"title":"Default Title","offer_id":45067811913821,"sku":"2008978","price":59.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_6cd37281-cf56-4a83-9aa1-eed2cff609d8.jpg?v=1789670616","url":"https:\/\/nvnmarine.com\/products\/johnson-pump-f5b-9-service-kit-09-45913","provider":"NVN Marine","version":"1.0","type":"link"}