{"product_id":"volvo-1637","title":"Volvo Penta Pump Piston 3809972 - Special Order","description":"\u003cp\u003eThe \u003cstrong\u003eVolvo Penta Pump Piston 3809972\u003c\/strong\u003e is a \u003cstrong\u003efront-mounted hydraulic steering pump \/ helm pump\u003c\/strong\u003e used in Volvo Penta hydraulic steering systems. It is the \u003cstrong\u003e33cc front-mount pump option\u003c\/strong\u003e shown at diagram position \u003cstrong\u003e1\u003c\/strong\u003e in Volvo Penta steering-system diagrams, alongside the related 28cc and 39cc front-mounted pump options. This part is used for steering installations where the Volvo Penta diagram calls for the \u003cstrong\u003efront-mounted 33cc pump piston\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta hydraulic steering pump piston \/ helm pump\u003c\/li\u003e\n\u003cli\u003ePart number: \u003cstrong\u003e3809972\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMounting style: \u003cstrong\u003eFront mounted\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePump displacement: \u003cstrong\u003e33cc\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiagram group: \u003cstrong\u003eSteering System, Hydraulic\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiagram position: \u003cstrong\u003e1\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsed as the middle-displacement front-mounted option between \u003cstrong\u003e3809971 \/ 28cc\u003c\/strong\u003e and \u003cstrong\u003e3809973 \/ 39cc\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eRelated diagram hardware may include steering wheel nut, washer, air-vent plug, wedge, elbow nipples, washers, and lock nuts depending on installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplication Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eConfirmed Volvo Penta steering-system diagram applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eD1-13\u003c\/strong\u003e — Hydraulic steering system, front-mounted 33cc pump piston\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD1-30\u003c\/strong\u003e — Hydraulic steering system, front-mounted 33cc pump piston\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD2-55 \/ D2-55E\u003c\/strong\u003e — Hydraulic steering system, front-mounted 33cc pump piston\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD2-75F\u003c\/strong\u003e — Hydraulic steering system, front-mounted 33cc pump option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis part should be matched by the steering-system diagram, mounting style, and pump displacement rather than by engine model alone.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eVolvo Penta hydraulic steering pumps are listed in different mount styles and displacements. Before ordering, confirm that the existing helm pump is \u003cstrong\u003efront mounted\u003c\/strong\u003e and \u003cstrong\u003e33cc\u003c\/strong\u003e. Do not interchange it with the \u003cstrong\u003e28cc front-mount 3809971\u003c\/strong\u003e, \u003cstrong\u003e39cc front-mount 3809973\u003c\/strong\u003e, rear-mounted pumps, or tilt-mounted steering pumps unless the Volvo Penta steering diagram specifically calls for that setup.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace the pump piston \/ helm pump if the steering becomes stiff, inconsistent, slow to respond, leaks at the helm, loses hydraulic pressure, draws air into the steering system, or cannot be bled properly. Also inspect it when the wheel has excessive free play or when steering performance changes after hydraulic hose or cylinder service.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eVerify the mounting style, steering wheel hardware, air-vent plug, elbow fittings, hose routing, and hydraulic steering cylinder compatibility before installation. The system should be filled and bled according to the Volvo Penta steering procedure. If the steering system has been modified, confirm the pump displacement and cylinder volume before replacing the helm pump, since pump size affects steering wheel turns and steering effort.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta 3809972\u003c\/strong\u003e — front-mounted 33cc pump piston \/ steering pump reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRelated steering pump references:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3809971\u003c\/strong\u003e — front mounted, 28cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3809973\u003c\/strong\u003e — front mounted, 39cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3809975\u003c\/strong\u003e — rear mounted, 28cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3809976\u003c\/strong\u003e — rear mounted, 33cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3809977\u003c\/strong\u003e — rear mounted, 39cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21135046\u003c\/strong\u003e — tilt-mounted steering, 33cc reference shown in later diagram data.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe important match is \u003cstrong\u003efront mount + 33cc\u003c\/strong\u003e. A different displacement can change the number of steering-wheel turns and steering effort, while a different mount style may not fit the helm layout at all. Match the existing pump and steering diagram before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecial Order\u003c\/strong\u003e — this product is not currently in store inventory but may be available from the Manufacturer. Special Orders may take up to 2 weeks to arrive. Call the parts desk before ordering if you need a closer estimate on delivery time.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":44081137811492,"sku":"3809972","price":2782.04,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/a906da69-88bc-4b43-b34d-d26a305098c4.png?v=1778611211","url":"https:\/\/marisolmarine.com\/products\/volvo-1637","provider":"Marisol Marine Company","version":"1.0","type":"link"}