{"product_id":"volvo-penta-oem-heat-exchanger-o-ring-3580818","title":"Volvo Penta OEM Heat Exchanger O-Ring | Part 3580818","description":"\u003ch2\u003eVolvo Penta OEM Heat Exchanger O-Ring — Part No. 3580818\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3580818\u003cbr\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Volvo Penta\u003cbr\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e Gaskets, Seals \u0026amp; O-Rings\u003cbr\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Cooling System — Heat Exchanger \/ Oil Cooler Sealing\u003cbr\u003e\n\u003cstrong\u003eDiagram Position:\u003c\/strong\u003e Heat exchanger or oil cooler end-cap sealing position — confirm via Volvo Penta parts diagram for your engine serial\u003c\/p\u003e\n\n\u003cp\u003eThis is a genuine Volvo Penta OEM O-ring used in the heat exchanger and oil cooler sealing service of compact Volvo Penta marine diesel engines. The material compound, cross-section diameter, and inner diameter are specific to this application — a generic O-ring matched by size alone may not provide the same resistance to coolant, oil, and heat cycling that the OEM part is designed for.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta D2-50F — heat exchanger \/ oil cooler sealing\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D2-55, D2-55B, D2-55C, D2-55D, D2-55E, D2-55F — heat exchanger \/ oil cooler sealing\u003c\/li\u003e\n\u003cli\u003eVolvo Penta MD22L, MD22P — heat exchanger \/ oil cooler sealing\u003c\/li\u003e\n\u003cli\u003eVolvo Penta TAMD22P-B — heat exchanger \/ oil cooler sealing\u003c\/li\u003e\n\u003cli\u003eVolvo Penta TMD22B, TMD22P-C — heat exchanger \/ oil cooler sealing\u003c\/li\u003e\n\u003cli\u003eOther Volvo Penta compact diesel applications where Part No. 3580818 is specified\u003c\/li\u003e\n\u003cli\u003eConfirm fitment using your engine model and serial number against the Volvo Penta cooling system diagram before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSerial Number Requirement\u003c\/h2\u003e\n\u003cp\u003eFitment can vary by engine version and cooling component revision. Always verify Part No. \u003cstrong\u003e3580818\u003c\/strong\u003e against your engine serial number and the applicable Volvo Penta parts diagram — particularly on MD22 \/ D2 \/ TMD22-family engines where cooling component configurations can differ between production ranges.\u003c\/p\u003e\n\n\u003ch2\u003eDimensions \u0026amp; Weight\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 0.05 kg (estimated — includes packaging)\u003c\/li\u003e\n\u003cli\u003eExact O-ring dimensions (ID, cross-section): confirm via Volvo Penta parts diagram for your engine serial\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSupersession\u003c\/h2\u003e\n\u003cp\u003eOrder using Part No. \u003cstrong\u003e3580818\u003c\/strong\u003e as the active number. No confirmed supersession or replacement part number has been identified in current Volvo Penta catalog data. If a supersession exists for your engine serial, it will appear in the official Volvo Penta parts lookup.\u003c\/p\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eReplace this O-ring any time the heat exchanger, oil cooler, or end-cap assembly is removed during service. O-rings are single-use components — once compressed and disturbed, they should not be reused. Replace as part of any heat exchanger cleaning, oil cooler service, or cooling system overhaul where the sealed joint is opened.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eClean the sealing groove and mating surface thoroughly before installation. Inspect for corrosion, scoring, or debris that could prevent proper seating. Lightly lubricate the O-ring with clean coolant or the appropriate Volvo Penta-approved lubricant before installation to prevent tearing during assembly. Do not stretch or twist the O-ring during fitting. Confirm the sealing location matches the diagram position for your engine serial before reassembly.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Parts\u003c\/h2\u003e\n\u003cp\u003eCustomers servicing the heat exchanger or cooling system alongside this O-ring often need:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-thermostat-cooling-o-ring-3586514\"\u003eVolvo Penta Thermostat Cooling O-Ring 3586514\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-thermostat-3587597\"\u003eVolvo Penta Thermostat 3587597\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-thermostat-21437904\"\u003eVolvo Penta Thermostat 21437904\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-thermostat-kit-3831426\"\u003eVolvo Penta Thermostat Kit 3831426\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-thermostat-kit-3831424\"\u003eVolvo Penta Thermostat Kit 3831424\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-end-cover-22369744\"\u003eVolvo Penta End Cover 22369744\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/volvo-penta-oem-water-pump-gasket-3580576\"\u003eVolvo Penta OEM Water Pump Gasket 3580576\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I substitute a generic O-ring by measuring the original?\u003c\/strong\u003e\u003cbr\u003e\nNot recommended. O-ring material compound affects resistance to coolant, oil, and heat cycling — a ring that matches the dimensions but uses the wrong compound can swell, harden, or fail prematurely in a marine cooling application. OEM replacement is the safest approach.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I confirm this is the right O-ring for my engine?\u003c\/strong\u003e\u003cbr\u003e\nUse your engine model and serial number to locate the correct Volvo Penta cooling system diagram. Find the heat exchanger or oil cooler assembly and confirm that Part No. 3580818 appears at the sealing position you are servicing. If a different number appears, use that number instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShould I replace all O-rings in the heat exchanger at the same time?\u003c\/strong\u003e\u003cbr\u003e\nYes, if the heat exchanger is being fully disassembled for cleaning or service. Replacing all seals at once avoids a repeat teardown if an adjacent O-ring fails shortly after. Check the Volvo Penta parts diagram for all sealing positions in the assembly and order accordingly.\u003c\/p\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003eThe most common issue we see with this part is customers trying to source a generic substitute by measuring the old O-ring — the dimensions might match, but the material compound is what matters in a heat exchanger application where the seal is exposed to both coolant and oil under temperature cycling. The other frequent situation is a single O-ring being replaced while adjacent seals in the same assembly are left in place, leading to a leak from a different position shortly after. Best used as a direct OEM replacement during any heat exchanger cleaning, oil cooler service, or cooling system overhaul on the applicable D2, MD22, or TMD22-family engine — and worth replacing all seals in the assembly at the same time while it’s apart.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43563999068196,"sku":"3580818","price":57.3,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/3580818.jpg?v=1775601929","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-oem-heat-exchanger-o-ring-3580818","provider":"Marisol Marine Company","version":"1.0","type":"link"}