{"product_id":"21618587-cylinder-head-genuine-volvo-penta","title":"21618587 Cylinder Head | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n A complete cylinder-head assembly for Volvo Penta TAD420VE industrial diesel engines. It forms the combustion chambers and carries the valves, valve seats, guides and coolant passages.\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 TD420VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD620VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD420VE\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  TD, TAD\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  TAD420VE cylinder-head application\n \u003c\/li\u003e\n \u003cli\u003e\n  Precision-machined combustion and gasket surfaces\n \u003c\/li\u003e\n \u003cli\u003e\n  Supports the inlet and exhaust valve train\n \u003c\/li\u003e\n \u003cli\u003e\n  Integrated coolant and lubricating-oil passages\n \u003c\/li\u003e\n \u003cli\u003e\n  Requires correct head gasket, fastener sequence and installed-height checks\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n The cylinder head closes the cylinders, forms the combustion chambers and controls intake, exhaust, coolant and oil flow through the top of the engine.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Coolant pressurisation or loss\n \u003c\/li\u003e\n \u003cli\u003e\n  Oil and coolant contamination\n \u003c\/li\u003e\n \u003cli\u003e\n  Cracks between valve seats or coolant passages\n \u003c\/li\u003e\n \u003cli\u003e\n  Warped gasket face\n \u003c\/li\u003e\n \u003cli\u003e\n  Valve-seat recession or leakage\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 head for cracks and check the head and block faces for flatness with a straight edge before assembly, and have any doubt about the face or the valve seats resolved before the gasket goes on\n \u003c\/li\u003e\n \u003cli\u003e\n  Clean the gasket faces with care and without scoring them — do not attack an aluminium face with abrasive discs or scrapers, and keep debris out of the bores, coolant passages and bolt holes\n \u003c\/li\u003e\n \u003cli\u003e\n  Always use a new head gasket, and tighten in the stages, sequence and torque-plus-angle steps given in the workshop manual for your engine, with the threads and mating faces clean and lubricated exactly as that manual specifies\n \u003c\/li\u003e\n \u003cli\u003e\n  Head bolts on modern engines are angle-tightened and stretch permanently, so renew them wherever the manual calls for it rather than reusing them\n \u003c\/li\u003e\n \u003cli\u003e\n  Refill and bleed the cooling system properly, then run the engine and carry out any retightening or valve clearance recheck the manual requires after the first running period\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  21618587 → Supersedes 20526210\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  20526210 earlier number superseded by this part\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":53385519268132,"sku":"656977K","price":1281.04,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_b7baf32e-4e86-44c1-9b9d-e799ae5171f6.jpg?v=1788060779","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21618587-cylinder-head-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}