The Hercules D2300 is a 226 L 4-cylinder compression ignition engine rated at 1800 rpm. It powers generator sets from Cummins/Onan, including the DZC series. It holds 6 L (1.6 gal) of oil.
Service parts for the D2300
The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.
Oil system
1 requiredP550141Oil filterfind
Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.
Maintenance schedule
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Common questions
What is the oil capacity of the Hercules D2300?
The Hercules D2300 engine has an oil capacity of 6.0 liters.
What is the displacement of the Hercules D2300?
The Hercules D2300 has a displacement of 226.0 liters with 4 cylinders.
Which generators use the Hercules D2300 engine?
The Hercules D2300 powers 1 generator set(s), including Cummins/Onan DZC series.
What oil filter does the Hercules D2300 use?
The Hercules D2300 uses oil filter part numbers Donaldson P550141, Wix 51143, Ac Delco PF141.
What fuel filter does the Hercules D2300 use?
The Hercules D2300 uses fuel filter part numbers Donaldson P553261, Donaldson P556245, Wix 33511.
What air filter does the Hercules D2300 use?
The Hercules D2300 uses air filter part numbers Donaldson P181052, Wix 42222, Ac Delco A1430C.