Onan Cummins 305-0854-04 Generator Voltage Regulator AVR Board - Used

Onan / Cummins Onan generator voltage regulator (AVR) board, part number 305-0854-04 as printed on the factory barcode label. Open-frame solid-state regulator on a finned aluminum heat sink with an 8-position terminal strip (FIELD +/−, POWER AC/AC, SENSE AC/AC, JUMPER) and 50/60 Hz selection decal.

APPLICATION: Associated with Onan / Cummins Onan generator sets. The specific genset model and spec for this unit are not verified — confirm against your generator set model, spec, and serial number before ordering.

CONDITION: Used, untested take-out. Shop soiling, coating discoloration, and light surface oxidation on the heat sink and terminal screws. No burned, cracked, or bulged components visible; all eight terminal screws present. No electrical testing has been performed and the unit is not represented as functional. Sold with exactly what is pictured — board and heat sink only, no hardware, wiring, or documentation.

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.