{"product_id":"20478064-hollow-screw-genuine-volvo-penta","title":"20478064 Hollow Screw | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n OEM fastening component used in the low-pressure fuel supply, return and injection-pump connection system. It restores the specified thread, length, strength and clamping arrangement required by the original Volvo Penta assembly.\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 D12D-A MG\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D12D-E MG\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D12D-E MP\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D12D-F MP\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D12D-H MP\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TWD1240VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1241GE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1242GE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1250VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1251VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1252VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1250-52VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1240GE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1241VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1242VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1241-42VE\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, TWD, TAD\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   HP Range:\n  \u003c\/strong\u003e\n  Approximately 300 HP\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Year Range:\n  \u003c\/strong\u003e\n  Approximately late 1990s-2010s, depending on engine and installation\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  0.059 kg\n \u003c\/li\u003e\n \u003cli\u003e\n  Supersedes 20397814\n \u003c\/li\u003e\n \u003cli\u003e\n  For the low-pressure fuel supply, return and injection-pump connection system\n \u003c\/li\u003e\n \u003cli\u003e\n  Listed for 16 applications across D, TWD and TAD series engines\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Acts as a union bolt in the low-pressure fuel system, clamping a pipe eye to its port while passing fuel through its central drilling.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Fuel weeping from under the pipe eye or around the head\n \u003c\/li\u003e\n \u003cli\u003e\n  Diesel smell and a damp, dirt-collecting patch at the joint\n \u003c\/li\u003e\n \u003cli\u003e\n  Air drawn into the fuel system, causing hunting or hard starting\n \u003c\/li\u003e\n \u003cli\u003e\n  Central drilling found blocked with debris\n \u003c\/li\u003e\n \u003cli\u003e\n  Sealing washers found flattened and hard, and the head found rounded on removal\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  Always fit new sealing washers each side of the pipe eye - the washers, not the screw, are usually why the joint weeps\n \u003c\/li\u003e\n \u003cli\u003e\n  Check the central drilling is clear before refitting, and do not over-tighten; a stretched hollow screw will snap in service\n \u003c\/li\u003e\n \u003cli\u003e\n  It replaces 20397814, so the two numbers describe the same hollow screw\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  20478064 → Supersedes 20397814\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  20397814 earlier number superseded by this part\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n Aftermarket \/ Verified Equivalents\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  ATP: HS-064\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":53383914389796,"sku":"6769259","price":22.84,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_64f2b0b6-fe25-47c3-9f24-a71c7e5d8729.jpg?v=1777181975","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/20478064-hollow-screw-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}