{"product_id":"seachoice-f7-impeller-kit-17789","title":"Seachoice F7 Impeller Kit 17789 | Johnson 09-1028BT-1 \/ Jabsco 17937-0001","description":"\u003ch2\u003eSeachoice F7 Impeller Kit 17789\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 17789 (Seachoice)  |  \u003cstrong\u003eMPN:\u003c\/strong\u003e A03783  |  \u003cstrong\u003eUPC:\u003c\/strong\u003e 0719249177892\u003c\/p\u003e\n\u003cp\u003eThe Seachoice 17789 is an F7 flexible impeller service kit for selected Johnson Pump and Jabsco marine raw-water pumps. It features an 8-blade impeller with a splined hub, measuring 2.56 in. \/ 65 mm outside diameter and 1.98 in. \/ 50.2 mm wide. It cross-references directly to \u003ca href=\"\/products\/8131455123492\"\u003eJohnson Pump 09-1028BT-1\u003c\/a\u003e and \u003ca href=\"\/products\/11110180978724\"\u003eJabsco 17937-0001\u003c\/a\u003e, making the full pump or original impeller number the most reliable fitment reference.\u003c\/p\u003e\n\n\u003ch3\u003eImpeller Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump family:\u003c\/strong\u003e Johnson Pump \/ Jabsco F7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of blades:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside diameter:\u003c\/strong\u003e 2.56 in. \/ 65 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 1.98 in. \/ 50.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive:\u003c\/strong\u003e Splined hub\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eF7 flexible impeller\u003c\/li\u003e\n\u003cli\u003eGasket\u003c\/li\u003e\n\u003cli\u003eO-ring\u003c\/li\u003e\n\u003cli\u003eImpeller lubricant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cp\u003eThis kit belongs to the F7 Johnson \/ Jabsco flexible-impeller pump family. The equivalent Johnson 09-1028BT-1 is cataloged for marine cooling applications associated with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercury Marine 4-cylinder engines\u003c\/li\u003e\n\u003cli\u003eMercury Marine 6-cylinder engines\u003c\/li\u003e\n\u003cli\u003eVolvo Penta\u003c\/li\u003e\n\u003cli\u003eYanmar\u003c\/li\u003e\n\u003cli\u003eKohler marine generator applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways confirm fitment by matching the existing pump model and impeller number rather than engine brand alone.\u003c\/p\u003e\n\n\u003ch3\u003eFitment Notice\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExisting impeller number\u003c\/li\u003e\n\u003cli\u003ePump manufacturer, model, and F7 designation\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.56 in. \/ 65 mm\u003c\/li\u003e\n\u003cli\u003eWidth: 1.98 in. \/ 50.2 mm\u003c\/li\u003e\n\u003cli\u003e8-spline drive configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not confuse this F7 kit with smaller F5 or F6 Johnson pump impellers. The \u003ca href=\"\/products\/8131455090724\"\u003eJohnson F5 09-1027B-10\u003c\/a\u003e measures only 2.25 in. \/ 57.1 mm OD × 1.24 in. \/ 31.5 mm wide — a significantly different size. The F7 uses the larger 65 mm \/ 2.56 in. diameter and 50.2 mm \/ 1.98 in. width configuration.\u003c\/p\u003e\n\n\u003ch3\u003eOEM \u0026amp; Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeachoice: \u003cstrong\u003e17789\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSeachoice MPN: \u003cstrong\u003eA03783\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131455123492\"\u003eJohnson Pump: \u003cstrong\u003e09-1028BT-1\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11110180978724\"\u003eJabsco: \u003cstrong\u003e17937-0001\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Replace the Impeller\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCooling-water flow is weak or intermittent\u003c\/li\u003e\n\u003cli\u003ePump self-priming performance has declined\u003c\/li\u003e\n\u003cli\u003eVanes are cracked, torn, stiff, or permanently deformed\u003c\/li\u003e\n\u003cli\u003eBlade pieces are missing — trace all fragments through the cooling circuit before reassembly\u003c\/li\u003e\n\u003cli\u003ePump has been run dry\u003c\/li\u003e\n\u003cli\u003eCooling system has experienced overheating\u003c\/li\u003e\n\u003cli\u003eAnnual raw-water pump service is due\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShut down and isolate the engine or pump before beginning work\u003c\/li\u003e\n\u003cli\u003eRemove the pump cover and extract the old impeller\u003c\/li\u003e\n\u003cli\u003eInspect the old impeller carefully for missing vane pieces — locate any fragments in the cooling circuit before closing up\u003c\/li\u003e\n\u003cli\u003eInspect the pump chamber and cover plate for scoring or wear\u003c\/li\u003e\n\u003cli\u003eConfirm the replacement dimensions and spline configuration match the original\u003c\/li\u003e\n\u003cli\u003eLubricate the new impeller with the supplied or approved water-safe impeller lubricant\u003c\/li\u003e\n\u003cli\u003eRotate the pump shaft in its normal operating direction while seating the impeller\u003c\/li\u003e\n\u003cli\u003eReplace the supplied gasket and O-ring\u003c\/li\u003e\n\u003cli\u003eVerify strong cooling-water flow immediately after startup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131455123492\"\u003eJohnson Pump 09-1028BT-1 Impeller Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11110180978724\"\u003eJabsco 17937-0001-P Profile Y Neoprene Impeller Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11110180028452\"\u003eJohnson Pump Impeller Puller for 09-1028BT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11110179569700\"\u003eSeachoice F35 Impeller Kit 17788 | Johnson 09-808B-1 \/ Jabsco 22405-0001\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131455090724\"\u003eJohnson Pump 09-1027B-10 Impeller Kit (F5)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131384213540\"\u003eJohnson Pump 09-812B-1 Impeller Kit (F6)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11110180487204\"\u003eSierra 18-3306 Johnson Pump F6 \/ Jabsco Impeller Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11110182322212\"\u003eJohnson Pump 09812BT1 Kit: F6 Impeller w\/ Thread MC97\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11110184550436\"\u003eSeachoice 17781 Impeller Puller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131604774948\"\u003eJabsco Neoprene Impeller Kit 920-0001-P\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131601891364\"\u003eJabsco Neoprene Impeller Kit 17370-0001-P\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131671883812\"\u003eYanmar Impeller Kit 119773-42640 — 6LP \/ 6LPA Seawater Pump Service Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe Seachoice 17789 is a solid value-priced option for annual F7 raw-water pump service across Mercury Marine 4- and 6-cylinder, Volvo Penta, Yanmar, and Kohler applications that use Johnson or Jabsco F7 pumps. Confirming the cross-reference against Johnson 09-1028BT-1 or Jabsco 17937-0001 before ordering takes the guesswork out of fitment.\u003c\/p\u003e\n\u003cp\u003eThe most common mistake is confusing F-series impeller designations by appearance alone — the F5, F6, and F7 look similar but have different diameters and widths that affect pump sealing and flow. Always confirm the full impeller or pump number, not just the pump family name. As with any impeller service, if blade fragments are found in the old impeller, trace them through the full cooling circuit before reassembling — a missed piece is a frequent cause of continued overheating after a service.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51156139343908,"sku":"50-17789","price":74.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/3c55f9b4-9c51-4db0-8e00-20cce688b948.png?v=1788811406","url":"https:\/\/marisolmarine.com\/products\/seachoice-f7-impeller-kit-17789","provider":"Marisol Marine Company","version":"1.0","type":"link"}