{"product_id":"arco-ip002-volvo-penta-raw-water-pump-impeller","title":"ARCO IP002 Volvo Penta Raw Water Pump Impeller | Replaces 21951346 \/ 3862281","description":"\u003ch2\u003eARCO IP002 Volvo Penta Raw Water Pump Impeller\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e IP002 (ARCO)  |  \u003cstrong\u003eBrand:\u003c\/strong\u003e ARCO Marine  |  \u003cstrong\u003eUPC:\u003c\/strong\u003e 693006030142\u003c\/p\u003e\n\u003cp\u003eARCO \u003cstrong\u003eIP002\u003c\/strong\u003e is a premium replacement raw-water pump impeller for a broad range of Volvo Penta gasoline and diesel marine engines. It directly cross-references Volvo Penta \u003cstrong\u003e21951346\u003c\/strong\u003e, \u003cstrong\u003e3862281\u003c\/strong\u003e, \u003cstrong\u003e3850107\u003c\/strong\u003e, and \u003cstrong\u003e877400\u003c\/strong\u003e, as well as Sierra \u003cstrong\u003e18-3081\u003c\/strong\u003e — a widely used impeller family that spans Volvo Penta's AQ-series gasoline engines through the 2003-series and selected diesel models including the D2-55 and D2-75.\u003c\/p\u003e\n\u003cp\u003eThe impeller uses a \u003cstrong\u003e12-blade design\u003c\/strong\u003e with a \u003cstrong\u003e12-spline drive hub\u003c\/strong\u003e, measuring approximately \u003cstrong\u003e2.25 in. \/ 57 mm outside diameter\u003c\/strong\u003e and \u003cstrong\u003e1.24 in. \/ 31.5 mm wide\u003c\/strong\u003e. Confirm the 12-spline hub and OEM part number before ordering — this family has been superseded multiple times within the Volvo Penta parts system.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e IP002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ARCO Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Flexible Raw Water Pump Impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlades:\u003c\/strong\u003e 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Drive:\u003c\/strong\u003e 12-spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e approx. 2.25 in. \/ 57 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e approx. 1.24 in. \/ 31.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Engine-mounted raw-water (seawater) cooling pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 693006030142\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp\u003eFitment is confirmed by existing OEM impeller number, engine model, and raw-water pump model — not displacement alone. This impeller family is used across a wide range of Volvo Penta gasoline and diesel applications. Documented engine families include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003eAQ-series\u003c\/strong\u003e gasoline engines\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e3.0L\u003c\/strong\u003e gasoline\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e4.3L\u003c\/strong\u003e gasoline\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e5.0L\u003c\/strong\u003e gasoline\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e5.7L\u003c\/strong\u003e gasoline\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e5.8L\u003c\/strong\u003e gasoline\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e7.4L\u003c\/strong\u003e gasoline\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e8.1L \/ 8.2L\u003c\/strong\u003e gasoline\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003e2003-series\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003eD2-55\u003c\/strong\u003e diesel\u003c\/li\u003e\n\u003cli\u003eVolvo Penta \u003cstrong\u003eD2-75\u003c\/strong\u003e diesel\u003c\/li\u003e\n\u003cli\u003eSelected \u003cstrong\u003eDP-A, DP-C, DP-D\u003c\/strong\u003e and \u003cstrong\u003eSP-series\u003c\/strong\u003e drive applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConfirm fitment against your existing OEM impeller number or pump model number before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eFitment Notice\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm all of the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExisting OEM impeller number (Volvo Penta 21951346, 3862281, 3850107, or 877400)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta engine model and serial number\u003c\/li\u003e\n\u003cli\u003eRaw-water pump model\u003c\/li\u003e\n\u003cli\u003eHub drive: \u003cstrong\u003e12-spline\u003c\/strong\u003e (not single-flat or keyed)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: approx. \u003cstrong\u003e2.25 in. \/ 57 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWidth: approx. \u003cstrong\u003e1.24 in. \/ 31.5 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVolvo Penta has superseded this impeller family more than once. If your existing number is the current Volvo service ref \u003cstrong\u003e24715100\u003c\/strong\u003e, this ARCO impeller is also catalogued as a replacement for that reference family.\u003c\/p\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eInspect the raw-water pump impeller at each annual cooling-system service. Replace immediately when any of the following are observed:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduced or absent cooling-water flow at the exhaust outlet\u003c\/li\u003e\n\u003cli\u003eEngine overheating during operation\u003c\/li\u003e\n\u003cli\u003eImpeller blades cracked, torn, stiff, hardened, or permanently bent\u003c\/li\u003e\n\u003cli\u003eBlade material missing — inspect all downstream hoses, heat exchangers, and coolers before fitting the replacement\u003c\/li\u003e\n\u003cli\u003ePump has run dry (replace immediately)\u003c\/li\u003e\n\u003cli\u003eScheduled annual raw-water pump service interval reached\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClose the raw-water intake seacock or raise the drive before disassembly\u003c\/li\u003e\n\u003cli\u003eRemove the pump cover and extract the old impeller — inspect all blades and account for any missing pieces\u003c\/li\u003e\n\u003cli\u003eInspect the pump bore, cam surface, and cover plate for scoring or corrosion before fitting the new impeller\u003c\/li\u003e\n\u003cli\u003eConfirm the 12-spline hub aligns correctly with the pump shaft\u003c\/li\u003e\n\u003cli\u003eLubricate the impeller blades and bore with glycerin or dish soap before installation — do not use petroleum-based lubricants\u003c\/li\u003e\n\u003cli\u003eRotate the shaft in its normal operating direction while pressing the impeller into the bore to pre-set vane direction\u003c\/li\u003e\n\u003cli\u003eReplace the pump cover O-ring or gasket as applicable\u003c\/li\u003e\n\u003cli\u003eOpen the seacock and verify strong water flow at the exhaust 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\u003eARCO:\u003c\/strong\u003e IP002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 877400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 3850107\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 3862281\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 21951346\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta (current ref):\u003c\/strong\u003e 24715100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSierra:\u003c\/strong\u003e 18-3081\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSierra:\u003c\/strong\u003e 18-3277\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohnson Pump:\u003c\/strong\u003e 09-1027B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJabsco:\u003c\/strong\u003e 1210-0001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMallory:\u003c\/strong\u003e 9-45703\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 693006030142\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\/11110180454436\"\u003eVolvo Neoprene Impeller Kit\u003c\/a\u003e — OEM-style kit for Volvo Penta raw-water pump service\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11110181044260\"\u003eJabsco 1210-0001-P Neoprene Impeller Kit\u003c\/a\u003e — Jabsco cross-reference impeller kit\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11110179668004\"\u003eJohnson Pump F5B Impeller Kit 09-1027B-1\u003c\/a\u003e — Johnson Pump cross-reference (replaces Jabsco 1210-0001)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131455090724\"\u003eJohnson Pump 09-1027B-10 Impeller Kit\u003c\/a\u003e — additional Johnson Pump cross-reference\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 ARCO IP002 is the right annual-service impeller for a wide range of Volvo Penta gasoline and diesel installations — from the AQ-series through the 2003-series and light diesel models like the D2-55 and D2-75. If your existing impeller number is anywhere in the 877400 \/ 3850107 \/ 3862281 \/ 21951346 \/ 24715100 supersession chain, this is your replacement. It's also a reliable choice when buying OEM is slower or more expensive and you need a confirmed cross-reference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon issues:\u003c\/strong\u003e The most frequent ordering challenge with this family is navigating Volvo Penta's multiple supersession changes — customers often arrive with an older OEM number and aren't sure if IP002 still covers it. The answer is yes for all numbers in that chain. The other common error is confusing the 12-spline hub with other Volvo impellers that use a keyed or single-flat drive — always confirm the hub type from your pump or the existing impeller before ordering. If blade pieces are missing after removing the old impeller, search all downstream passages carefully: a fragment lodged in a heat exchanger or thermostat housing will cause overheating on the very next run.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51156140425252,"sku":"57-IP002","price":38.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/57-IP002.jpg?v=1784926838","url":"https:\/\/marisolmarine.com\/products\/arco-ip002-volvo-penta-raw-water-pump-impeller","provider":"Marisol Marine Company","version":"1.0","type":"link"}