Cummins/Onan B3.3-G1 Engine

How to read your Cummins/Onan engine serial & model number →

• Undervoltage sensor pickup and dropout adjustable from 85-100% and 75-98%
  Fix: Dropout adjustable delay from 0.1-30 sec.
• Time delay start and stop (cooldown) configurable for time delay of 0-300 seconds prior to starting after receiving a remote start signal
  Fix: Control provides retransfer time delays including time delay emergency to normal (0-1800 sec), programmed transition delay (0-600 sec), and time delay engine cooldown (0-3600 sec).
• Time delay of 0-600 seconds prior to shutdown after signal to stop in normal operation modes
  Fix: Default for both time delay periods is 0 seconds.
• Sensor failure indication
  Fix: Logic is provided on the base control to detect analog sensor or interconnecting wiring failures.
• Overvoltage sensor dropout adjustable from 105-135% of nominal
  Fix: Dropout adjustable delay from 0.5-120 sec.
• Over/under frequency sensor underfrequency sensing pickup and dropout adjustable from 85-100% and 70-85%
  Fix: Dropout adjustable delay from 0.1-15 sec.
• Over/under frequency sensor overfrequency sensing dropout adjustable from 105-115% of nominal
  Fix: Dropout adjustable delay from 0.1-15 sec.
• Low lube oil pressure warning/shutdown
  Fix: Level is pre-set to match the capabilities of the engine used. Control includes time delays to prevent nuisance shutdown signals.
• Low coolant temperature warning
  Fix: Indicates that engine temperature may not be high enough for 1 min. and start or proper load acceptance.
• High coolant temperature warning/shutdown
  Fix: Level is pre-set to match the capabilities of the engine used. Control includes time delays to prevent nuisance shutdown signals.
• Emergency stop signal is received
  Fix: The generator set immediately shuts down and cannot run or crank with the E-stop switch engaged.

Compiled from service & troubleshooting documentation across every generator set that uses the Cummins/Onan B3.3-G1.

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.