• 20799727 Voltage Regulator | Genuine Volvo Penta Part
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20799727 Voltage Regulator | Genuine Volvo Penta Part

20799727 Voltage Regulator | Genuine Volvo Penta Part

$462.91 AUD
$462.91 AUD
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Shipping calculated at checkout.

Available from Volvo Penta international

Typically reaches our store in 10–14 business days

Availability checked daily with Volvo Penta

✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide

🔧 Product Description

Generator-engine voltage regulator used in the TAD550/TAD750 GE electrical package. It is installed with the specified connector, mounting plate, cable and pulley configuration.

🚤 Compatibility

Typically suits:

  • Volvo Penta TAD560VE
  • Volvo Penta TAD561VE
  • Volvo Penta TAD734GE
  • Volvo Penta TAD752GE
  • Volvo Penta TAD753GE
  • Volvo Penta TAD754GE
  • Volvo Penta TAD765VE
  • Volvo Penta TAD764VE
  • Volvo Penta TAD763VE
  • Volvo Penta TAD762VE
  • Volvo Penta TAD761VE
  • Engine Family: TAD
  • HP Range: Approximately 320 HP
  • Year Range: Approximately 2000s-2010s

⚙️ Key Features

  • Controls generator/alternator excitation and output voltage
  • Maintains stable electrical-system voltage under changing load
  • Matched to the specified generator/alternator and pulley configuration
  • Protects batteries and electrical equipment from sustained overvoltage
  • Requires sound wiring, grounds, batteries and drive-belt condition
  • Engine type: 5.7 L and 7 L common-rail generator diesel

🔌 Function

Controls charging-system or generator excitation voltage so output remains within the specified operating range.

⚠️ Common Signs of Failure

  • Battery overcharging or undercharging
  • Charging warning lamp remains illuminated
  • Unstable electrical-system voltage or flickering equipment
  • Repeated battery discharge, heating or electrolyte loss
  • Output remains outside specification after wiring, belt and ground checks

🛠️ Service Notes

  • 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
  • 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
  • Check the brushes and slip rings while the regulator is off; a worn brush set gives the same low or erratic output
  • 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
  • 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

🔄 Supersession & Cross Reference

OEM / Related Numbers

  • 21034749 connector
  • 20834412 regulator mounting plate
  • 973924 and 955271 mounting screws
  • 20859762 washer
  • 990940 nut
  • 20459181 clamp
  • 969405 socket screw
  • 21259035 cable - later superseded by 22843492
  • 20799737 and 20799739 pulley configurations
  • 20796079 flange nut

📦 Condition

  • Genuine Volvo Penta part
  • Brand new
  • Supplied in original or equivalent packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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