{"product_id":"johnson-pump-09-808b-1-f35-impeller-kit-mc97-jabsco-22405-0001","title":"Johnson Pump 09-808B-1 F35 Impeller Kit | MC97 \/ EPDM | 40 × 19 mm | Replaces Jabsco 22405-0001","description":"\u003ch2\u003eJohnson Pump 09-808B-1 F35 Impeller Kit — MC97 \/ EPDM\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 09-808B-1 (Johnson Pump \/ SPX Flow)  |  \u003cstrong\u003ePump Family:\u003c\/strong\u003e F35  |  \u003cstrong\u003eBrand:\u003c\/strong\u003e Johnson Pump \/ SPX Flow\u003c\/p\u003e\n\u003cp\u003eJohnson Pump \u003cstrong\u003e09-808B-1\u003c\/strong\u003e is a genuine MC97\/EPDM flexible impeller kit for Johnson Pump \u003cstrong\u003eF35-series\u003c\/strong\u003e marine raw-water pumps. The kit is designed for engine-cooling and generator-cooling service, where the impeller draws raw water through the pump to maintain cooling-water circulation from startup through continuous operation.\u003c\/p\u003e\n\u003cp\u003eSPX Flow’s official specification confirms \u003cstrong\u003e40 mm (1.58 in.) outside diameter × 19 mm (0.75 in.) width × 12 mm (0.47 in.) hub diameter\u003c\/strong\u003e, six blades, and a direct cross-reference to Jabsco \u003cstrong\u003e22405-0001\u003c\/strong\u003e. The kit includes an O-ring, gasket, and impeller lubricant for a complete pump service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment note:\u003c\/strong\u003e Johnson also produces an F35 impeller \u003cstrong\u003e09-806B-1\u003c\/strong\u003e with the same 40 mm outside diameter but a different hub dimension. Outside diameter alone is not sufficient to distinguish these two impellers — confirm the full part number, hub size, and width before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 09-808B-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Johnson Pump \/ SPX Flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Family:\u003c\/strong\u003e F35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Flexible Raw-Water Pump Impeller Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e MC97 \/ EPDM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 40 mm \/ 1.58 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 19 mm \/ 0.75 in. (official SPX specification)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub \/ Shaft Diameter:\u003c\/strong\u003e 12 mm \/ 0.47 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Blades:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Impeller, O-ring, gasket, impeller lubricant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 7330717008734\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 113 g \/ approx. 4 oz\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp\u003eJohnson Pump identifies 09-808B-1 for \u003cstrong\u003eF35-series pumps\u003c\/strong\u003e. Confirm fitment by the existing pump and impeller number. Documented applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta MB \/ MD marine diesel engines (cross-reference: 875583-7 \/ 833995)\u003c\/li\u003e\n\u003cli\u003eOnan 5.5 MDKUB marine generator\u003c\/li\u003e\n\u003cli\u003eOnan 6.0 MDKOB marine generator\u003c\/li\u003e\n\u003cli\u003eOnan 6.5 MDKUB marine generator\u003c\/li\u003e\n\u003cli\u003eOnan 7.5 MDKOB marine generator\u003c\/li\u003e\n\u003cli\u003eOnan 9.0 MDKOB marine generator\u003c\/li\u003e\n\u003cli\u003eSelected Westerbeke generator applications using the F35 pump configuration\u003c\/li\u003e\n\u003cli\u003eSelected Perkins and Kubota small-diesel installations using this F35 impeller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFitment Notice\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm all of the following match your pump and original impeller:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePump is a Johnson Pump \u003cstrong\u003eF35\u003c\/strong\u003e series\u003c\/li\u003e\n\u003cli\u003eOriginal impeller number is \u003cstrong\u003e09-808B-1\u003c\/strong\u003e or cross-reference \u003cstrong\u003eJabsco 22405-0001\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutside diameter: \u003cstrong\u003e40 mm (1.58 in.)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWidth: \u003cstrong\u003e19 mm (0.75 in.)\u003c\/strong\u003e — not 0.57 in. as some third-party listings incorrectly state\u003c\/li\u003e\n\u003cli\u003eHub diameter: \u003cstrong\u003e12 mm (0.47 in.)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBlade count: \u003cstrong\u003e6 blades\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/8131455254564\"\u003e09-806B-1\u003c\/a\u003e is a different F35 impeller with the same 40 mm OD but a different hub — do not substitute.\u003c\/p\u003e\n\n\u003ch2\u003eWhen to Replace the Impeller\u003c\/h2\u003e\n\u003cp\u003eReplace the impeller when any of the following are found:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlades are cracked, torn, split, or hardened\u003c\/li\u003e\n\u003cli\u003eVanes remain permanently bent after the pump stops\u003c\/li\u003e\n\u003cli\u003eBlade tips are missing or broken off\u003c\/li\u003e\n\u003cli\u003eRaw-water flow through the cooling system has decreased\u003c\/li\u003e\n\u003cli\u003eEngine or generator operating temperature begins rising above normal\u003c\/li\u003e\n\u003cli\u003eThe pump has been operated without water (dry run)\u003c\/li\u003e\n\u003cli\u003eThe impeller’s service history is unknown or overdue for scheduled maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eJohnson Pump recommends regular impeller service because blade condition is critical to maintaining proper cooling flow from cold startup through continuous operation.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClose the raw-water intake seacock or isolate the water supply before opening the pump\u003c\/li\u003e\n\u003cli\u003eRemove the pump cover and extract the old impeller — do not score the pump housing bore\u003c\/li\u003e\n\u003cli\u003eInspect the cover plate, cam, shaft, housing bore, and all sealing surfaces for wear or damage\u003c\/li\u003e\n\u003cli\u003eAccount for all blades from the old impeller — if any are missing, inspect downstream hoses, heat exchangers, and cooling passages before restarting\u003c\/li\u003e\n\u003cli\u003eApply the supplied impeller lubricant to the new impeller blades and hub before installation\u003c\/li\u003e\n\u003cli\u003eInstall the replacement gasket or O-ring supplied in the kit\u003c\/li\u003e\n\u003cli\u003eRefit the pump cover and tighten evenly\u003c\/li\u003e\n\u003cli\u003eOpen the water supply and start the engine or generator — verify strong raw-water flow and inspect the pump for leaks immediately after startup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohnson Pump:\u003c\/strong\u003e 09-808B-1 \/ 09808B1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJabsco:\u003c\/strong\u003e 22405-0001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 875583-7 \/ 833995\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVetus:\u003c\/strong\u003e IMP00601\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 7330717008734\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131455254564\"\u003eJohnson Pump 09-806B-1 Impeller Kit\u003c\/a\u003e — alternate F35 impeller with same 40mm OD but different hub — confirm part number before ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131455287332\"\u003eJohnson Pump 09-808B-1 Impeller Kit\u003c\/a\u003e — alternate listing for this same impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131384148004\"\u003eJohnson Pump 09-808B-1 MC97 Impeller For F35 Pumps\u003c\/a\u003e — alternate listing for this same impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11110179569700\"\u003eSeachoice F35 Impeller Kit 17788 | Johnson 09-808B-1 \/ Jabsco 22405-0001\u003c\/a\u003e — aftermarket equivalent for F35\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11110179799076\"\u003eJohnson Pump 09-45587 Service Kit\u003c\/a\u003e — F6 series service kit for reference\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131384213540\"\u003eJohnson Pump 09-812B-1 Impeller Kit (F6)\u003c\/a\u003e — F6 series impeller for larger Johnson Pump applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e 09-808B-1 is the correct service impeller for Onan marine gensets (MDKUB \/ MDKOB series) and Volvo Penta MB\/MD diesel engines using the Johnson F35 raw-water pump. These are common generator-equipped cruising and workboat installations, and the F35 is a small, durable pump that gives long service when the impeller is replaced on schedule. The MC97\/EPDM compound resists swelling and fatigue better than some other elastomers, which is one reason Johnson specifies it for continuous-duty generator cooling applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon issues:\u003c\/strong\u003e The most frequent ordering error is confusing 09-808B-1 with \u003cstrong\u003e09-806B-1\u003c\/strong\u003e — both are F35 impellers with the same 40 mm outside diameter, but the hub dimensions differ and they are not interchangeable. Always confirm the full part number. The second issue is the incorrect width specification that circulates in some third-party catalog data; the official SPX Flow dimension is \u003cstrong\u003e19 mm (0.75 in.)\u003c\/strong\u003e, not 0.57 in. Use the pump part number and impeller number together — not the diameter alone — to confirm the right kit.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51156140130340,"sku":"189-09808B1","price":71.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/07767139-a697-4ba0-8d15-45f35af6aa43.png?v=1788824469","url":"https:\/\/marisolmarine.com\/products\/johnson-pump-09-808b-1-f35-impeller-kit-mc97-jabsco-22405-0001","provider":"Marisol Marine Company","version":"1.0","type":"link"}