Onan 300-1540 YD Regulator Board Assembly (Voltage Regulator PCB) - NOS

Onan 300-1540 YD Regulator Board Assembly — genuine Onan voltage regulator printed circuit board, marked "YD REGULATOR 300-1540 REV U" on the component side with bare-board number 332-2075 REV H on the solder side. Comes with the original Onan Genuine Parts box label reading "ONE 300-1540 BOARD ASSY REG."

Application: Onan YD-series generator sets, 50/60 Hz terminal selection, with DAMPING and VOLTAGE adjustment potentiometers. Specific genset model and spec application is not verified — confirm against your Onan parts manual by genset model and spec number.

Condition: NOS (new old stock), untested. No signs of installation — original bright solder joints, no rework, no heat damage, unmarked terminals. Light shelf dust and age only. 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.