{"product_id":"22003479-starter-gear-ring-genuine-volvo-penta","title":"22003479 Starter Gear Ring | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Heat-treated starter ring gear used on selected TAD7 engine flywheels. The gear has the tooth form and interference-fit diameter required for the matching starter pinion.\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 TAD720VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD721VE\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\u003c\/ul\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Correct tooth count, pitch and outside diameter\n \u003c\/li\u003e\n \u003cli\u003e\n  Heat-treated ring-gear teeth\n \u003c\/li\u003e\n \u003cli\u003e\n  Interference fit to the matching flywheel\n \u003c\/li\u003e\n \u003cli\u003e\n  Designed for the specified starter pinion\n \u003c\/li\u003e\n \u003cli\u003e\n  Concentric installation is essential\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Provides the toothed engagement surface used by the starter motor to rotate the engine during cranking.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Chipped or heavily burred teeth\n \u003c\/li\u003e\n \u003cli\u003e\n  Starter grinding or intermittent engagement\n \u003c\/li\u003e\n \u003cli\u003e\n  Ring gear loose on the flywheel\n \u003c\/li\u003e\n \u003cli\u003e\n  Localised tooth wear at stopping positions\n \u003c\/li\u003e\n \u003cli\u003e\n  Cracks or heat damage from incorrect installation\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  Fits only the TAD720VE and TAD721VE 7.15-litre industrial engines — this ring gear is not shared with Volvo's larger TAD ranges, so check the engine designation before ordering\n \u003c\/li\u003e\n \u003cli\u003e\n  It is the current number in a supersession chain running back through 21033328, 20706915 and 20405650, so a flywheel built at any point in that history takes this ring\n \u003c\/li\u003e\n \u003cli\u003e\n  Check the flywheel register is clean and heat the ring evenly before fitting so it goes on to size without cracking — an interference-fit ring dropped on cold will not seat concentric\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  22003479 → Supersedes 21033328 → Supersedes 20706915 → Supersedes 20405650\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  21033328 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  20706915 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  20405650 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  Weger 7422003479 - 363.4 mm \/ 129-tooth ring gear\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  Specification cross-reference: approximately 363.4 mm outside diameter, 129 teeth\n \u003c\/li\u003e\n \u003cli\u003e\n  Olsson Parts 122208\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":53381839716644,"sku":"876675X","price":419.87,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_1c4f7612-f8a4-4986-9edf-4b1cc721c96d.jpg?v=1788060709","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/22003479-starter-gear-ring-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}