Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 20 kW |
| Standby kVA | 20 |
| Prime power | 18.2 kW |
| Controller | PowerCommand 1.1 |
| Oil capacity | 9.5 L |
| Alternator | DS338-CPGK, DS340-CPGK, DS342-CPGK, DS339-CPGK, DS341-CPGK, DS343-CPGK (Class Class H insulation) |
| Voltage options | 120/240 V, 208 V, 277/480 V |
| Phase | 1/3 |
| Circuit breaker | 100 A |
| Battery cranking | 550 CCA |
| Battery voltage | 12V V |
| Battery quantity | 1 |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 1667×930×1282 mm |
| Dry weight | 442 kg |
| Wet weight | 511 kg |
| Sound level | 68.4 dBA @ 7 m |
| Fuel tank | 174.0 L |
Engine
| Oil capacity | 9.5 L |
|---|---|
| Coolant capacity | 3.5 L |
| Displacement | 2.197 L |
| Aspiration | Natural |
| Rated speed | 1800 rpm |
Filters for the Kubota V2203
6Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P550939 | Lube Filter, Spin-On Full Flow | KUBOTA 1641432430, KUBOTA 16432430, NAPA 1521, NAPA 21521 | FridayParts $23.20 |
| Oil filter | P550008 | Lube Filter, Spin-On Full Flow | KUBOTA 1540232091, KUBOTA 1540232420, NAPA 1515, NAPA 1775 | FridayParts $25.73 |
| Fuel filter | P550127 | Fuel Filter, Spin-On | KUBOTA 1522143170, KUBOTA 1522143171, NAPA 3390, WALGAHN-MOTORENTECHN 00811936 | KuduParts $16.00 |
| Fuel filter | P502161 | Fuel Filter, Cartridge | KUBOTA 1522143160, KUBOTA 15221431600, NAPA 3507, BALDWIN PF717 | KuduParts $11.00 FridayParts $13.62 |
| Fuel / water separator | P550248 | Fuel Filter, Water Separator Spin-On Twist&Drain | NAPA 3472, BALDWIN BF1226, CLAAS 0006495000, CLAAS 0006495001 | FridayParts $229.00 |
| Fuel / water separator | P551039 | Fuel Filter, Water Separator Spin-On Twist&Drain | NAPA 3192, BALDWIN BF1257, CLUB CAR 102614001, CLUB CAR 102703401 | FridayParts $25.40 KuduParts $97.00 |
Maintenance & consumables
for the Kubota V2203| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry replaceable element | — | |||
| Fuel filter | Spin on fuel filters with water separator | — | |||
| Oil filter | Spin on full flow filter, filtration efficiency 25 micron 99% (min) | — | |||
| Battery | Set mounted battery | — | |||
| Belt | N/A | — | |||
| Coolant | Antifreeze 50/50 (Ethylene glycol) | — | |||
| Oil | Cummins heavy-duty engine oil | — | |||
| Spark plug | N/A | — |
Service specifications
20| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | AC waveform Total Harmonic Distortion (THDV) | No load to full linear load < 5. For any single harmonic < 2.5 | % | |
| Other | AFLEX-H (shake table test datum) | <=3.200 | g | AC156, tri-axial, 5% damping SRS |
| Other | AFLEX-V (shake table test datum) | <=1.333 | g | AC156, tri-axial, 5% damping SRS |
| Other | ARIG-H (shake table test datum) | <=2.400 | g | AC156, tri-axial, 5% damping SRS |
| Other | ARIG-V (shake table test datum) | <=0.533 | g | AC156, tri-axial, 5% damping SRS |
| Other | Governor regulation class | ISO 8528 | ||
| Other | Ground snow load limit | 30 | psf | For indoor (covered) and outdoor (exposed) installation |
| Other | Horizontal design seismic coefficient (z/h = 0.0) | 1.440 | g | Certified seismic design level, IBC Importance IP <= 1.5, Soil Classes A-E, Risk Categories I-IV, Design Categories A-F, SDS <= 2.000 g |
| Other | SDS (g) at z/h=1 for C10 D6 - C60 D6 | 2.0 | g | Certified SDS, z/h = 1 |
| Other | SDS (g) at z/h=1 for C50 D6C - C125 D6C | 2.5 | g | Certified SDS, z/h = 1 |
| Other | Telephone Harmonic Factor (THF) | < 2 | % | for 50 Hz |
| Other | Telephone Influence Factor (TIF) | < 75 | for 60 Hz | |
| Other | ZPA-H (shake table test datum) | <=2.160 | g | AC156, tri-axial, 5% damping SRS |
| Other | ZPA-V (shake table test datum) | <=0.480 | g | AC156, tri-axial, 5% damping SRS |
| Speed | Frequency regulation | Droop | ||
| Speed | Random frequency variation | ± 0.75 | % | |
| Temperature | Standard temperature rise | 125-163 | ºC | |
| Voltage | Random voltage variation | ± 2.5 | % | |
| Voltage | Starting voltage | 12 | V | negative ground |
| Voltage | Voltage regulation, no load to full load | ± 2.5 | % | 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.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | Antifreeze 50/50 (Ethylene glycol) | Optional | |||
| Fuel | Diesel |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Fault codes
5| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| 27 | Low AC voltage shutdown | Voltage on any phase has dropped below a preset value. Adjustable over a range of 50-95% of voltage, time delay 2-20 seconds. Default value is 90% for 5 seconds. | Shutdown | |
| 51 | High Current warning/shutdown | Implementation of the thermal damage curve with instantaneous trip level calculated based on current transformer ratio and application power rating. | Warning | |
| 59 | High AC voltage shutdown | Output voltage on any phase exceeds pre-set values. Values adjustable from 105-125% of nominal voltage, with time delay adjustable from 1-10 seconds. Default value is 110% for 5 seconds. | Shutdown | |
| 81 o | Over frequency shutdown/warning | Generator set is operating at a potentially damaging frequency level. Settings are adjustable from 2-10 Hz above nominal governor set point for 100-2000 half cycles delay. Default: 5 Hz, 1000 half cycles. | Warning | |
| 81 u | Under frequency shutdown | Generator set output frequency cannot be maintained. Settings are adjustable from 2-10 Hz below nominal governor set point, for a 500-2000 half cycles delay. Default: 5 Hz, 1000 half cycles. | Shutdown |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What is the power rating of the Cummins/Onan C20 D6?
The Cummins/Onan C20 D6 is rated 20 kW standby (20.0 kVA).
What engine is in the Cummins/Onan C20 D6?
The Cummins/Onan C20 D6 is powered by the Kubota V2203 engine.
Is the Cummins/Onan C20 D6 diesel or gas?
The Cummins/Onan C20 D6 runs on Diesel.
How much oil does the Cummins/Onan C20 D6 take?
The Kubota V2203 engine in the Cummins/Onan C20 D6 has an oil capacity of 9.5 liters.
What is the coolant capacity of the Cummins/Onan C20 D6?
The Cummins/Onan C20 D6 cooling system holds 3.5 liters (0.9 US gallons) for the engine, per the manufacturer specification sheet.
What is the continuous rating of the Cummins/Onan C20 D6?
The Cummins/Onan C20 D6 is rated 18.2 kW prime (22 kVA), against 20 kW standby.
What is the sound level of the Cummins/Onan C20 D6?
The Cummins/Onan C20 D6 is rated at 68.4 dBA at 7 m, per the manufacturer specification sheet.
What is the dry weight of the Cummins/Onan C20 D6?
The Cummins/Onan C20 D6 has a dry weight of 442 kg (974 lb).
What size fuel tank does the Cummins/Onan C20 D6 have?
The Cummins/Onan C20 D6 has a 174 liter (46 US gallon) fuel tank.
What voltage does the Cummins/Onan C20 D6 produce?
The Cummins/Onan C20 D6 is offered in 120/240 V, 208 V, 277/480 V, 1/3-phase.
How many cold cranking amps does the Cummins/Onan C20 D6 require?
The Cummins/Onan C20 D6 uses 1 battery, 12V V each, 550 CCA, per the manufacturer specification sheet.
What alternator comes on the Cummins/Onan C20 D6?
The Cummins/Onan C20 D6 uses a DS338-CPGK, DS340-CPGK, DS342-CPGK, DS339-CPGK, DS341-CPGK, DS343-CPGK alternator. Insulation class Class H.
Troubleshooting
6Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Emergency stop signal is received | The generator set immediately shuts down and cannot run or crank with the E-stop switch engaged. |
| Time delay of 0-600 seconds prior to shutdown after signal to stop in normal operation modes | Default for both time delay periods is 0 seconds. |
| Undervoltage sensor pickup and dropout adjustable from 85-100% and 75-98% | Dropout adjustable delay from 0.1-30 sec. |
| Overvoltage sensor dropout adjustable from 105-135% of nominal | Dropout adjustable delay from 0.5-120 sec. |
| Over/under frequency sensor underfrequency sensing pickup and dropout adjustable from 85-100% and 70-85% | Dropout adjustable delay from 0.1-15 sec. |
| Over/under frequency sensor overfrequency sensing dropout adjustable from 105-115% of nominal | Dropout adjustable delay from 0.1-15 sec. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan C20 D6 troubleshooting guide (11 entries) →
Parts
2| Part # | Description | Qty | System | |
|---|---|---|---|---|
| KB-19077-99352 | TOP GASKET KIT | 1 | Gasket | Amazon |
| KB-1A154-99360 | BOTTOM GASKET KIT | 1 | Gasket | Amazon |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 50% | 3.68 | 0.97 |
| Standby | 100% | 6.85 | 1.81 |
Available documents
This page was generated from the 5 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.