{"product_id":"volvo-450","title":"Volvo Penta D3 Oil Return Pipe Gasket 31251456 | OEM Turbocharger Oil System","description":"\u003ch2\u003ePart Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 31251456\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Volvo Penta\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e Gasket — Engine Oil Return Pipe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e No supersession on record\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaced By:\u003c\/strong\u003e No current supersession on record\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagram Position:\u003c\/strong\u003e D3 Lubricating \u0026amp; Oil System — Oil return pipe connection, used alongside oil return pipe 21098797 and related return-line components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Volvo Penta 31251456 is a genuine OEM flat gasket used at the oil return pipe connection in the lubricating and oil system of Volvo Penta D3 marine diesel engines. It seals the joint at the oil-return pipe and is a required replacement any time this connection is separated for service. This gasket works alongside the nearby \u003ca href=\"\/products\/volvo-penta-d3-turbocharger-oil-return-sealing-ring-31251439\"\u003esealing ring 31251439\u003c\/a\u003e, which serves a different position in the same oil-return assembly — the two parts are not interchangeable.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta D3-110I-D\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D3-110I-H\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D3-140I-E\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D3-200A-G\u003c\/li\u003e\n\u003cli\u003eAdditional D3 configurations where the oil-return pipe assembly specifies 31251456\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eConfirm your complete engine model and serial number against the Volvo Penta D3 lubricating and oil system diagram before ordering. The D3 oil-return system uses both gasket 31251456 and \u003ca href=\"\/products\/volvo-penta-d3-turbocharger-oil-return-sealing-ring-31251439\"\u003esealing ring 31251439\u003c\/a\u003e at different positions — verify the exact diagram position before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSerial Number Requirements\u003c\/h2\u003e\n\u003cp\u003eAlways confirm your engine model and serial number using the Volvo Penta D3 lubricating and oil system parts diagram. The oil-return assembly uses multiple sealing components at nearby positions — matching the exact diagram position is the most reliable way to ensure you order the correct part.\u003c\/p\u003e\n\n\u003ch2\u003eSystem\u003c\/h2\u003e\n\u003cp\u003eLubrication System — Turbocharger Oil Return \/ Oil Return Pipe Connection\u003c\/p\u003e\n\n\u003ch2\u003eRelated Parts — D3 Oil Return Assembly\u003c\/h2\u003e\n\u003cp\u003eThe following components are part of the D3 oil-return assembly and should be inspected during gasket service:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOil Return Pipe — 21177977\u003c\/li\u003e\n\u003cli\u003eOil Return Pipe — 21098797\u003c\/li\u003e\n\u003cli\u003eOil Return Pipe — 21294908\u003c\/li\u003e\n\u003cli\u003eHose — 3593534\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/volvo-penta-d3-turbocharger-oil-return-sealing-ring-31251439\"\u003eSealing Ring — 31251439\u003c\/a\u003e (separate position in the same oil-return system)\u003c\/li\u003e\n\u003c\/ul\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\u003c\/li\u003e\n\u003cli\u003eGasket dimensions per Volvo Penta D3 lubricating and oil system specification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen This Part Needs Replacement\u003c\/h2\u003e\n\u003cp\u003eReplace the gasket whenever the oil-return pipe joint is separated for service, or if inspection reveals any of the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOil seepage around the return pipe connection\u003c\/li\u003e\n\u003cli\u003eCompression damage, distortion, or deterioration of the sealing surface\u003c\/li\u003e\n\u003cli\u003eLeakage following turbocharger or oil-return pipe service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGaskets should always be replaced rather than reused once the joint has been disturbed.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eClean both mating surfaces thoroughly before installing the new gasket. Ensure the oil-return pipe seats squarely before tightening the fasteners. Inspect the return pipe, hose connections, and surrounding hardware for wear or damage during service.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 31251456 and 31251439?\u003c\/strong\u003e\u003cbr\u003eA: 31251456 is the flat gasket at the oil-return pipe connection. \u003ca href=\"\/products\/volvo-penta-d3-turbocharger-oil-return-sealing-ring-31251439\"\u003e31251439\u003c\/a\u003e is the separate metal sealing ring used at a different position in the same oil-return assembly. They are not interchangeable — confirm the exact diagram position before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I replace this gasket every time I remove the oil-return pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Gaskets should always be replaced when the joint is disturbed. Reusing a compressed or damaged gasket risks oil seepage after reassembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this is the right gasket for my engine?\u003c\/strong\u003e\u003cbr\u003eA: Match your engine model and serial number to the Volvo Penta D3 lubricating and oil system diagram, and confirm the gasket position at the oil-return pipe connection.\u003c\/p\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003eThe most common issue with this part is customers confusing it with the nearby \u003ca href=\"\/products\/volvo-penta-d3-turbocharger-oil-return-sealing-ring-31251439\"\u003esealing ring 31251439\u003c\/a\u003e — both are in the D3 oil-return assembly, but they serve different sealing positions and are not interchangeable. The diagram is the only reliable way to confirm which one is needed. At $8.80, this is one of those parts worth including automatically any time a customer is ordering oil-return pipe components for the D3 — the cost of a repeat job far outweighs the cost of the gasket.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43563998085156,"sku":"31251456","price":8.8,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/1a47ef6c-aac5-4a6a-968c-06a251add4ab.png?v=1787520953","url":"https:\/\/marisolmarine.com\/products\/volvo-450","provider":"Marisol Marine Company","version":"1.0","type":"link"}