{"product_id":"20482741-inlet-valve-genuine-volvo-penta","title":"20482741 Inlet Valve | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Standard-size inlet valve for Deutz-derived Volvo Penta D4D\/D6D and related TAD engine cylinder heads. Documented dimensions are approximately 119.3 mm overall length, 41.7 mm head diameter and 8 mm stem diameter, with a 30-degree seat.\n\u003c\/p\u003e\n\u003ch2\u003e\n 🚤 Compatibility\n\u003c\/h2\u003e\n\u003cul\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-2000s\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  OEM valve head, stem length and seat-angle specification\n \u003c\/li\u003e\n \u003cli\u003e\n  Maintains combustion sealing and correct intake or exhaust gas flow\n \u003c\/li\u003e\n \u003cli\u003e\n  Designed for high-cycle cylinder-head operation and temperature exposure\n \u003c\/li\u003e\n \u003cli\u003e\n  Requires valve-guide, seat and spring inspection during installation\n \u003c\/li\u003e\n \u003cli\u003e\n  Suitable for professional cylinder-head overhaul\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: Deutz-derived four- and six-cylinder turbocharged Volvo Penta diesel\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Opens and closes the cylinder-head gas port at the correct point in the engine cycle and seals against the valve seat during compression and combustion.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Low compression or cylinder leakage through the inlet valve\n \u003c\/li\u003e\n \u003cli\u003e\n  Hard starting, rough running or reduced power\n \u003c\/li\u003e\n \u003cli\u003e\n  Bent, burnt, recessed or pitted valve face\n \u003c\/li\u003e\n \u003cli\u003e\n  Poor cylinder filling caused by a valve that does not open or seat correctly\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  Keep valves in order and fit each one to the seat it is lapped to; a new valve must be lapped in until a continuous, even contact band shows right round\n \u003c\/li\u003e\n \u003cli\u003e\n  Check the guide for wear before fitting a new valve — a good valve in a worn guide will not seat or seal for long\n \u003c\/li\u003e\n \u003cli\u003e\n  Clean the deposits from the port and seat, wash every trace of lapping paste out of the head, and lubricate the stem with clean engine oil on assembly\n \u003c\/li\u003e\n \u003cli\u003e\n  Fit new stem seals and check installed spring height and valve recess against the figures in the workshop manual for your engine\n \u003c\/li\u003e\n \u003cli\u003e\n  Set the valve clearances on assembly and re-check them after the first running period, following the procedure for your engine\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  20482741 → Supersedes 20791517 → Supersedes 20459862\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  20791517 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  20459862 earlier number superseded by this part\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n Other-Brand OEM Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Deutz: 04283376\n \u003c\/li\u003e\n \u003cli\u003e\n  Deutz: 04254934\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  OE Germany: 040520201200\n \u003c\/li\u003e\n \u003cli\u003e\n  OE Germany: 03 0520 600000\n \u003c\/li\u003e\n \u003cli\u003e\n  SLP: ILV-741\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":53385765749028,"sku":"273863E","price":90.28,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_e00f3f06-65ee-4470-bbeb-4188278ce014.jpg?v=1788060140","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/20482741-inlet-valve-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}