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Cummins/Onan EH41DS Engine

The Cummins/Onan EH41DS is a 0.4 L forced air-cooled engine, producing up to 7.3 kW. It powers generator sets from Cummins/Onan, including the PX7500.

Also known as: Cummins Onan EH41DS

0.404 L
Displacement
7 kW
Gross power
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Engine specifications

Displacement0.404 L
AspirationForced air-cooled
Gross power7 kW

Common problems

3
  • When No Electricity Is Generated at Receptacle
    Fix: Check if AC circuit breaker is in the "ON" position. Check AC receptacle and DC terminals for loose connection. Check to see if engine starting was attempted with appliances already connected to generator.
  • When Engine Fails to Start
    Fix: Check if choke lever is in its proper position. Check if fuel cock is open. Check fuel level. Check to make sure generator is not connected to an appliance. Check spark plug for loose spark plug cap. Check spark plug for contamination. Check if engine switch is in OFF. Set the choke lever to "CLOSE" position. If closed, open fuel cock. If empty, refill fuel tank making sure not to overfill. If connected, turn off the power switch on the connected appliance and unplug. If loose, push spark plug cap back into place. Remove spark plug and clean electrode. Turn engine switch to ON.
  • Low power
    Fix: Carbon brushes are excessively worn

Compiled from service & troubleshooting documentation across every generator set that uses the Cummins/Onan EH41DS.

Common questions

What is the displacement of the Cummins/Onan EH41DS?

The Cummins/Onan EH41DS has a displacement of 0.404 liters.

Which generators use the Cummins/Onan EH41DS engine?

The Cummins/Onan EH41DS powers 1 generator set(s), including Cummins/Onan PX7500.

What is a common problem with the Cummins/Onan EH41DS engine?

A commonly reported issue on generators using the Cummins/Onan EH41DS is: When No Electricity Is Generated at Receptacle. Fix: Check if AC circuit breaker is in the "ON" position. Check AC receptacle and DC terminals for loose connection. Check to see if engine starting was attempted with appliances already connected to generator..