{"product_id":"21615589-cap-genuine-volvo-penta","title":"21615589 Cap | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n A pressure-rated filler cap used on the closed-cooling expansion tank of Volvo Penta V8 petrol marine engines.\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 3.0GXiC-J\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta 3.0GXi-J\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  Closed-cooling pressure cap\n \u003c\/li\u003e\n \u003cli\u003e\n  Seals expansion tank 21614836\n \u003c\/li\u003e\n \u003cli\u003e\n  Controls cooling-system pressure and venting\n \u003c\/li\u003e\n \u003cli\u003e\n  Heat- and coolant-resistant sealing element\n \u003c\/li\u003e\n \u003cli\u003e\n  Correct filler-neck engagement\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n The cap seals the tank and maintains the specified pressure so coolant boiling point and recovery operation remain controlled.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Coolant leaking around the cap\n \u003c\/li\u003e\n \u003cli\u003e\n  Pressure not retained\n \u003c\/li\u003e\n \u003cli\u003e\n  Hardened or damaged seal\n \u003c\/li\u003e\n \u003cli\u003e\n  Cap difficult to lock or remove\n \u003c\/li\u003e\n \u003cli\u003e\n  Repeated coolant discharge at normal temperature\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 and inspect the seating face on the housing as well as the cap — most leaks past a cap are the seat or the seal rather than the cap body\n \u003c\/li\u003e\n \u003cli\u003e\n  Renew any separate O-ring or gasket that goes with the cap, and lubricate rubber seals lightly with clean oil or grease so they slide home instead of rolling or tearing\n \u003c\/li\u003e\n \u003cli\u003e\n  Do not over-tighten a cap into a plastic or aluminium housing; it seals on its gasket or O-ring, not on force, and stripped threads mean a much bigger repair\n \u003c\/li\u003e\n \u003cli\u003e\n  Where a cap blanks a port during a repair, keep it fitted right up to the moment of assembly so nothing enters the opening\n \u003c\/li\u003e\n \u003cli\u003e\n  Check the cap is fully home and that any retaining clip, lanyard or locking tab is secure before returning the boat to service\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  21614836 - Expansion tank\n \u003c\/li\u003e\n \u003cli\u003e\n  21614847 - Cover\n \u003c\/li\u003e\n \u003cli\u003e\n  21614855 - Bracket\n \u003c\/li\u003e\n \u003cli\u003e\n  21614860 - Spill plate\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":53379705176356,"sku":"574987N","price":221.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_b89282f5-942d-46ad-acb1-8020f62ee2cc.jpg?v=1777118940","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21615589-cap-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}