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New replacement for Onan VR21 regulator 332D1268 and 332-1264, 332D1264, & 332-1268.
Will possibly replace the newer 300-4066, but call or e-mail for details.

This item is built in the USA and backed by a 2-year warranty

Mounts and hooks up the same as the original. We highly recommend replacing the SCR / Rectifier Power Module when replacing this board - if the power pack is shorted, you may damage this new board and void the warranty.

Additional features:  

  • Mounting footprint and terminal locations identical to original board.
  • Heavy conformal coating applied for moisture and vibration resistance.
  • Upgraded components used throughout the board.
  • Improved, more durable K1 relay.
  • Rugged barrier strip and heavy duty potentiometers.
  • Two-Year Warranty.

Save More Money! If you are a generator Tech, or are familiar with schematics and wiring devices like this, you may be able to replace this with our universal AVR like VR648-A

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  • Part #: 3321268-A
  • 2 In Stock