300-4901 Dinosaur Electronics ONAN GENERATOR BOARD

ONAN GENERATOR REPLACEMENT BOARD TO REPLACE ONAN P/N 300-4901

The Dinosaur Electronics 300‑4901 is a high‑reliability replacement control board engineered for Onan® generator systems. Built using double‑sided, plated‑thru‑hole PCB technology, this board provides superior durability, improved electrical integrity, and long service life compared to aging OEM boards.

Designed as a direct replacement for Onan part number 300‑4901, this board restores proper generator operation by stabilizing ignition, regulating control signals, and eliminating common failure points found in older single‑sided boards. Multiple sellers confirm this board as a drop‑in replacement for Onan RV and commercial generator models using the 300‑4901 control module.

Typical retail pricing ranges $170.99–$237.95, depending on seller and stock availability.

Key Features

• OEM‑grade replacement for Onan 300‑4901

• Double‑sided plated‑thru‑hole board for maximum durability

• Improved electrical reliability over original Onan boards

• Stabilizes ignition and control functions

• Designed for RV and commercial Onan generator systems

• Built by Dinosaur Electronics — known for rugged, long‑life RV electronics

Common Symptoms Requiring Replacement

• Generator starts then immediately shuts down

• No spark / intermittent ignition

• Unstable voltage output

• Board burn marks or corrosion

• Erratic or no response from control circuits