{"product_id":"21281430-expansion-plug-genuine-volvo-penta","title":"21281430 Expansion Plug | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Genuine Volvo Penta expansion plug used to close a machined core or service opening in the cylinder block or flywheel-housing area. Correct diameter, interference and installation depth are essential to prevent coolant or oil leakage.\n\u003c\/p\u003e\n\u003ch2\u003e\n 🚤 Compatibility\n\u003c\/h2\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Volvo Penta D1-30\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D1-30B\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D1-30F\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2010B\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2010-C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2010-D\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2020B\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2020-C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2020-D\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2030\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2030B\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2030-C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2030-D\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Engine Family:\n  \u003c\/strong\u003e\n  D, MD\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   HP Range:\n  \u003c\/strong\u003e\n  30 HP\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta engine-block expansion plug\n \u003c\/li\u003e\n \u003cli\u003e\n  Precision diameter for the assigned machined bore\n \u003c\/li\u003e\n \u003cli\u003e\n  Closes a casting core or service opening\n \u003c\/li\u003e\n \u003cli\u003e\n  Requires correct seating depth and clean bore\n \u003c\/li\u003e\n \u003cli\u003e\n  Replace if corroded, leaking or disturbed\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: Volvo Penta marine or industrial diesel\n \u003c\/li\u003e\n \u003cli\u003e\n  2 used per assembly\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Permanently closes the assigned casting opening and retains coolant or oil within the engine passage.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Coolant or oil seeping from a machined opening in the block or flywheel housing area\n \u003c\/li\u003e\n \u003cli\u003e\n  Rust staining or a crusty deposit trailing down the casting below the plug\n \u003c\/li\u003e\n \u003cli\u003e\n  Plug visibly dished, proud of the casting, or pushed part way out\n \u003c\/li\u003e\n \u003cli\u003e\n  Corrosion pinholing through the face of the plug\n \u003c\/li\u003e\n \u003cli\u003e\n  On removal, the machined bore found corroded or scored so the new plug cannot grip\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🛠️ Service Notes\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Clean the bore back to bright metal and check it for scoring before pressing the new plug in - a corroded bore is the usual reason a replacement leaks\n \u003c\/li\u003e\n \u003cli\u003e\n  Drive the plug to the specified depth; too deep or too shallow both leak\n \u003c\/li\u003e\n \u003cli\u003e\n  Supersedes 3886429 and 861803, the earlier number catalogued as a plug blank\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/h2\u003e\n\u003ch3\u003e\n OEM Supersession Chain\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  21281430 → Supersedes 3886429\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n OEM \/ Related Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  861803 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  3886429 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  3582307 - associated cylinder-block reference\n \u003c\/li\u003e\n \u003cli\u003e\n  3886427 - other position-specific block-plug references; not interchangeable without schematic confirmation\n \u003c\/li\u003e\n \u003cli\u003e\n  3583696 - other position-specific block-plug references; not interchangeable without schematic confirmation\n \u003c\/li\u003e\n \u003cli\u003e\n  3583697 - other position-specific block-plug references; not interchangeable without schematic confirmation\n \u003c\/li\u003e\n \u003cli\u003e\n  861805 - other position-specific block-plug references; not interchangeable without schematic confirmation\n \u003c\/li\u003e\n \u003cli\u003e\n  3807215 - other position-specific block-plug references; not interchangeable without schematic confirmation\n \u003c\/li\u003e\n \u003cli\u003e\n  861806 - other position-specific block-plug references; not interchangeable without schematic confirmation\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 📦 Condition\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta part\n \u003c\/li\u003e\n \u003cli\u003e\n  Brand new\n \u003c\/li\u003e\n \u003cli\u003e\n  Supplied in original or equivalent packaging\n \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":53379645571364,"sku":"3348348","price":26.11,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_eaa5d69c-070c-458d-90e3-57fbe6bb968d.png?v=1788056350","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21281430-expansion-plug-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}