Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Oil filter | — | ||||
| Belt | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Ford ESG6421-6005-A is an engine. It powers generator sets from Cummins/Onan, including the 30GGFE, 35GGFD, 35GGFE and 42GGFE.
Also known as: Ford ESG6421-6005-A
Compiled from service & troubleshooting documentation across every generator set that uses the Ford ESG6421-6005-A.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Oil filter | — | ||||
| Belt | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Compression ratio | 9.3 | ||
| Other | Frequency regulation | 0 | % | isochronous, no load to full load |
| Speed | Operating speed | 1800 | RPM | |
| Temperature | Cooling system ambient | 104 | °F | |
| Temperature | Operating temperature | -20 to 122 | °F | |
| Temperature | Temperature rise at rated load | less than 125 | °C | at rated load, standby rating |
| Voltage | Voltage regulation | 1 | % | no load to full load |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Ford ESG6421-6005-A powers 5 generator set(s), including Cummins/Onan 30GGFE, Cummins/Onan 35GGFD, Cummins/Onan 35GGFE, Cummins/Onan 42GGFE, Cummins/Onan 47GGFE.
A commonly reported issue on generators using the Ford ESG6421-6005-A is: Over Current.