The Cummins Onan 20 GEAE generator is listed with standby output of 18 kW, Natural Gas, Propane fuel, 60 Hz operation, and 60 Hertz.
Generator • Natural Gas, Propane • 60 Hz • 60 Hertz
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
18 kW
18 kW
How the Cummins Onan 20 GEAE compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 13% below the similar-output Cummins Onan average. Around the 32nd percentile for this field.
About 40% below the similar-output Cummins Onan average. Around the 14th percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | 20 GEAE |
| Generator type | Generator |
| Fuel | Natural Gas, Propane |
| Frequency | 60 Hz |
Electrical output
| Standby power | 18 kW |
|---|---|
| Prime power | 18 kW |
| Standby kVA | 22.0 |
| Phase | 60 Hertz |
Engine, cooling and controls
| Engine model | Onan Modified Ford LRG-423 (Turbocharged) |
|---|---|
| Aspiration / cooling | Turbocharged |
| Engine oil capacity | 1.06 gal (4 L) |
| Engine coolant capacity | 2.91 gal (11 L) |
| Oil capacity | 1.06 gal (4 L) |
| Coolant capacity | 2.91 gal (11 L) |
| Controller | Engine Control Module |
Battery
| Battery voltage | 12 V |
|---|
Maintenance and service parts
| Engine oil | Interval: 200 hr; Specification: Check the engine oil level during engine shutdown periods at the intervals specified in the Maintenance Table. The dipstick is stamped with FULL and ADD to indicate the level of oil in the crankcase. For accurate readings, shut off the engine and wait approximately 10 minutes before checking the engine oil level.; Capacity: 1 |
|---|---|
| Oil filter | Interval: 200 hr; Specification: Spin off oil filter and discard it. Thoroughly clean filter mounting surface. Apply a thin film of oil to filter gasket and install new element. Spin element on by hand until gasket just touches mounting pad and then turn an additional 1/2 to 3/4 turn. Do not over-tighten (Figure 5-2). With oil in crankcase, start engine and check for leaks around filter element. Retighten only as much as necessary to eliminate leaks but do not overtighten. |
| Fuel filter | Interval: 90 hr; Specification: Check for dirty fuel filter and replace if necessary (see Maintenance section). |
| Air filter | Interval: 90 hr; Specification: The engine air intake components should be checked at the interval indicated in Table 5-1. The frequency of cleaning or replacing air cleaner filter elements is primarily determined by the conditions in which the genset operates. The standard air cleaner contains a paper cartridge filter element which can be cleaned and reused if not damaged, or discarded and replaced. |
| Belt | Interval: 90 hr; Specification: An improperly adjusted fan belt can cause engine overheating and insufficient battery charging. Push on the fan belt in the middle and check that it deflects no more than 0.5 in. (13 mm) under a load of 15 lbs. (67 N). If belt is loose, loosen the two bolts on the battery charging alternator and adjust until proper tension is obtained. Retighten alternator bolts after adjustment. |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.