{"product_id":"21157344-hollow-screw-genuine-volvo-penta","title":"21157344 Hollow Screw | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Genuine Volvo Penta hollow banjo screw used in pairs at the hot-water outlet \/ cab-heater connections on TAD750VE and TAD760VE engines. The drilled screw passes coolant through the banjo fitting while clamping the joint between two sealing gaskets.\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 TAD750VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD760VE\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  TAD\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   HP Range:\n  \u003c\/strong\u003e\n  Approximately 250-320 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 coolant hollow screw\n \u003c\/li\u003e\n \u003cli\u003e\n  Two used at the documented hot-water outlet \/ cab-heater connection\n \u003c\/li\u003e\n \u003cli\u003e\n  Confirmed for TAD750VE and TAD760VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Uses gasket 947628 at the banjo joint\n \u003c\/li\u003e\n \u003cli\u003e\n  Internal drilling must remain clean and unrestricted\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: Volvo Penta 7-litre inline-six 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 Clamps the banjo connection while allowing engine coolant to flow through the drilled centre into the hot-water outlet circuit.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Coolant leakage at the banjo joint\n \u003c\/li\u003e\n \u003cli\u003e\n  Blocked internal drilling and poor heater flow\n \u003c\/li\u003e\n \u003cli\u003e\n  Damaged threads or rounded screw head\n \u003c\/li\u003e\n \u003cli\u003e\n  Cracked banjo fitting from incorrect tightening\n \u003c\/li\u003e\n \u003cli\u003e\n  Air entry or coolant loss causing overheating\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  Check the through-passage is clear and clean before fitting; a blocked hollow screw starves whatever it feeds\n \u003c\/li\u003e\n \u003cli\u003e\n  Always fit new sealing washers, one each side of the union where the original had them, and never reuse a crushed washer\n \u003c\/li\u003e\n \u003cli\u003e\n  Hold the fitting or pipe end against turning as you tighten, so the line is not twisted and the union is not pulled out of position\n \u003c\/li\u003e\n \u003cli\u003e\n  Tighten to the figure in the workshop manual for your engine — these seal by crushing the washer, not by force, and over-tightening splits the head or shears the shank\n \u003c\/li\u003e\n \u003cli\u003e\n  Bring the system up to working pressure and check for weeps before closing the space up\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 \/ Related Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  947628 - sealing gaskets\n \u003c\/li\u003e\n \u003cli\u003e\n  20450735 - upward coolant outlet pipe\n \u003c\/li\u003e\n \u003cli\u003e\n  20817900 - side coolant connection pipe\n \u003c\/li\u003e\n \u003cli\u003e\n  20412324 - flange screws\n \u003c\/li\u003e\n \u003cli\u003e\n  947281 - connection gasket\n \u003c\/li\u003e\n \u003cli\u003e\n  20483764 - nipple\n \u003c\/li\u003e\n \u003cli\u003e\n  21066503 - elbow\n \u003c\/li\u003e\n \u003cli\u003e\n  20508662 - plug\n \u003c\/li\u003e\n \u003cli\u003e\n  21801406 - guide washer\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":53381337940260,"sku":"Y002895","price":184.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_52b4e2ef-8cca-4b96-8892-89becbe0d521.jpg?v=1777131023","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21157344-hollow-screw-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}