Onan 305-0854-04 Voltage Regulator for Onan / Cummins Generator Set - Used

Onan (Cummins Onan) voltage regulator, OEM part number 305-0854-04 read from the factory barcode label. Eight-position terminal strip marked FIELD (+/−), POWER AC/AC, SENSE AC/AC with jumper callouts, plus a factory-set 50/60 Hz voltage adjustment.

Application: Onan / Cummins generator sets using the SR-style static voltage regulator. The specific generator set model and spec this unit was removed from are not verified.

Condition: Used, untested take-out. Oil and grease staining across the potted board, light corrosion on terminal hardware, scuffs and a paint-pen shop mark on the heat sink. Appears complete; no electrical or functional testing has been performed and none is implied.

Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.

Quote is subject to final fitment confirmation by engine/transmission serial number, part number, photos, and supplier availability.