Illuminated start/stop rocker switch with analog hourmeter for Onan gasoline and LP vapor RV generators with diagnostics. Wiring harness sold separately.
The Cummins Onan 300-5332 is a remote control panel that allows start/stop operation of compatible Onan gasoline and LP vapor RV generators from inside the vehicle. It features an illuminated rocker switch and an analog hourmeter for tracking generator run time — useful for scheduling maintenance intervals. The panel mounts via the included mounting plate and hardware; a full mounting template is included in the instruction sheet.
This panel requires a wiring harness for connection to the generator — either the 10-foot (338-3489-01) or 30-foot (338-3489-02) harness, sold separately. It is designed for generators with diagnostics; it is not compatible with older non-diagnostics models.
Backlit start/stop rocker switch with indicator light — easy to locate and operate in low-light conditions inside the RV
Tracks total generator run hours to simplify maintenance scheduling — know exactly when oil changes, filter replacements, and spark plug services are due
Includes panel assembly, mounting plate, mounting screws, and instruction sheet with full-size mounting template for clean installation
Works with both gasoline and LP vapor-fueled QG generators — confirm your generator model and spec letter using the compatibility table below
This panel does not include a wiring harness. To connect it to your generator you will also need: • 338-3489-01 — 10-foot harness (for shorter runs) • 338-3489-02 — 30-foot harness (for longer runs through the RV) Both harnesses plug directly into the sealed remote connector on the generator and the back of this panel.
The 300-5332 is designed for generators with the diagnostics control system. It is not compatible with older KY Spec A–E, KV Spec A–E, or other non-diagnostics generator models. Always verify your generator's complete model number and spec letter before ordering.
Backed by a 90-day limited manufacturer's warranty against defects in materials and workmanship.
Not compatible with KY Spec A–E, KV, or other non-diagnostics generators. Always confirm your generator's complete model number and spec letter before ordering.