{"product_id":"20460884-voltage-regulator-genuine-volvo-penta","title":"20460884 Voltage Regulator | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Alternator voltage regulator used with the original 28 V \/ 140 A alternator 20460893. This regulator is alternator-version specific and must not be selected solely from the engine model. Alternator voltage regulator used specifically with Volvo Penta 28 V \/ 140 A alternator 20460893. The later alternator 20580794 uses regulator 20580795, so the regulator must be selected by alternator version rather than engine model alone.\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 \u003cli\u003e\n  Volvo Penta TAD722VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD750VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD520VE\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   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  Controls alternator field current and charging-system output voltage\n \u003c\/li\u003e\n \u003cli\u003e\n  Maintains stable battery charging under changing electrical load\n \u003c\/li\u003e\n \u003cli\u003e\n  Matched to the specified alternator version rather than engine model alone\n \u003c\/li\u003e\n \u003cli\u003e\n  Protects batteries and connected electrical equipment from abnormal system voltage\n \u003c\/li\u003e\n \u003cli\u003e\n  Direct replacement for the catalogued regulator assembly\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: Volvo Penta 4- and 6-cylinder industrial diesel\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Monitors and controls alternator output to maintain the charging system near its specified voltage across engine speed and electrical load.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Battery voltage remains below charging specification with the engine running\n \u003c\/li\u003e\n \u003cli\u003e\n  Overcharging, boiling batteries or unusually high system voltage\n \u003c\/li\u003e\n \u003cli\u003e\n  Charging warning lamp remains illuminated or operates intermittently\n \u003c\/li\u003e\n \u003cli\u003e\n  Flickering lamps, unstable instruments or voltage that changes sharply with engine speed\n \u003c\/li\u003e\n \u003cli\u003e\n  Alternator output remains incorrect after battery, belt, wiring and ground checks\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  Isolate the batteries at the main switch and disconnect the negative lead before working on the charging circuit, and never disconnect a battery while the engine is running\n \u003c\/li\u003e\n \u003cli\u003e\n  Rule out the simple causes before condemning a regulator — a slack or glazed drive belt, corroded or loose battery and alternator connections, a poor engine-to-battery earth, or a tired battery all produce the same symptoms\n \u003c\/li\u003e\n \u003cli\u003e\n  Check the brushes and slip rings while the regulator is off; a worn brush set gives the same low or erratic output\n \u003c\/li\u003e\n \u003cli\u003e\n  Fit clean and dry, seat any insulating washers and bushes in their original order so nothing bridges across them, and tighten the terminals firmly without crushing them\n \u003c\/li\u003e\n \u003cli\u003e\n  Measure charging voltage at the battery with the engine running once the regulator is fitted, and compare it with the value specified for your engine and battery type\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  20460884 (regulator for alternator 20460893)\n \u003c\/li\u003e\n \u003cli\u003e\n  20580795 (regulator used with later alternator 20580794; not interchangeable without confirming alternator version)\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  20460893 original 28 V \/ 140 A alternator\n \u003c\/li\u003e\n \u003cli\u003e\n  20580795 regulator used with alternator 20580794\n \u003c\/li\u003e\n \u003cli\u003e\n  20494172 rectifier\n \u003c\/li\u003e\n \u003cli\u003e\n  20460856 capacitor\n \u003c\/li\u003e\n \u003cli\u003e\n  20460885 alternator gasket\n \u003c\/li\u003e\n \u003cli\u003e\n  20460886 carbon brush\n \u003c\/li\u003e\n \u003cli\u003e\n  20460438 retaining screws\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  Bosch: 1197311316\n \u003c\/li\u003e\n \u003cli\u003e\n  Bosch: 1987AN0215\n \u003c\/li\u003e\n \u003cli\u003e\n  Bosch: 1197311315\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n OEM Reman Alternatives\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  3803960 exchange alternator based on 20460893\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":53384054341924,"sku":"2651443","price":386.23,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_5d494e29-dcfb-4f43-a3db-8d85b3100119.jpg?v=1788058478","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/20460884-voltage-regulator-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}