{"product_id":"20482687-voltage-regulator-genuine-volvo-penta","title":"20482687 Voltage Regulator | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Alternator voltage regulator for the D5A\/D7A charging-system family, used with the specified alternator configuration and pulley\/belt arrangement. 28 V alternator voltage regulator used in the applicable Volvo Penta charging-system configuration.\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 D5A-B TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D5A-T\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D5A-TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D7A-B TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D7A-T\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D7A-TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D7C-B TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D7C-TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2010\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2010B\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  D, MD\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   HP Range:\n  \u003c\/strong\u003e\n  Approximately 250 HP\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Year Range:\n  \u003c\/strong\u003e\n  Approximately late 1990s-2010s, depending on engine and installation\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  28 V regulator for the specified three-phase alternator configuration\n \u003c\/li\u003e\n \u003cli\u003e\n  Controls alternator field current and charging-system voltage\n \u003c\/li\u003e\n \u003cli\u003e\n  Maintains stable battery charging under changing speed and electrical load\n \u003c\/li\u003e\n \u003cli\u003e\n  Protects batteries and connected equipment from sustained overvoltage\n \u003c\/li\u003e\n \u003cli\u003e\n  Must be matched to the alternator identification and wiring arrangement\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: Four- and six-cylinder Volvo Penta 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 overcharging or undercharging\n \u003c\/li\u003e\n \u003cli\u003e\n  Charging warning lamp remains illuminated\n \u003c\/li\u003e\n \u003cli\u003e\n  Unstable 28 V charging voltage or flickering electrical equipment\n \u003c\/li\u003e\n \u003cli\u003e\n  Repeated battery discharge, overheating or electrolyte loss\n \u003c\/li\u003e\n \u003cli\u003e\n  Alternator output remains outside specification after wiring, ground and belt 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  20482687 → Supersedes 23642811 → Supersedes 20549901\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  23642811 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  20549901 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  881668 alternator\n \u003c\/li\u003e\n \u003cli\u003e\n  20571644 later alternator\n \u003c\/li\u003e\n \u003cli\u003e\n  968933 V-belt\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: F 04R 320 367 - 28 V alternator regulator\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  3801327 remanufactured alternator\n \u003c\/li\u003e\n \u003cli\u003e\n  3803882 remanufactured later alternator\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  SRP: VR-82687\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":53383943029028,"sku":"881248A","price":345.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_afc1bc77-9148-48c4-8939-24d9d0edc24a.jpg?v=1788059128","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/20482687-voltage-regulator-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}