Specifications
| Fuel | gasoline |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 2800 kW |
| Prime power | 2500 kW |
| Voltage options | 120 V |
| Phase | 1 |
| Rated current | 23.3 A |
| Max ambient | 500 °C |
| Dimensions (L×W×H) | 558×414×325 mm |
| Dry weight | 56 kg |
| Sound level | 72.0 dBA @ 3 m |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | — | find | |||
| Oil filter | — | find |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Cummins/Onan QG 2800?
The Cummins/Onan QG 2800 is rated 2800 kW standby.
What fuel does the Cummins/Onan QG 2800 use?
The Cummins/Onan QG 2800 runs on gasoline.
Parts
78model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 122-0836C | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 140-2105C | Oil Filter | Oil filter | Amazon eBay PartsGeek | |
| 140-2680I | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 140-2897I | Oil Filter | Oil filter | Amazon eBay PartsGeek | |
| 140-3071I | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 140-3116C | Oil Filter | Oil filter | Amazon eBay PartsGeek | |
| 140-3280C | Oil Filter | Oil filter | Amazon eBay PartsGeek | |
| 140-3280E | Oil Filter | Oil filter | Amazon eBay $46.99 PartsGeek | |
| 140-4151I | Oil Filter | Oil filter | Amazon eBay PartsGeek | |
| 147-0860I | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 149-1353G | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 149-2137H | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 149-2333I | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 149-2457H | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 149-2457I | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 149-2513I | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 149-2661I | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 149-2834I | Air Filter | Air filter | Amazon eBay PartsGeek | |
| 167-0241D | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 167-0272B | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 167-0272C | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 167-0275H | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 167-0305H | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 167-1638H | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 167-1652I | Spark Plug | Spark plug | Amazon eBay PartsGeek | |
| 185-2289 | Glow Plug (12 Volt) | Glow plug | Amazon eBay $40.00 PartsGeek | |
| 185-5990 | Glow Plug (12 Volt) | Glow plug | Amazon eBay PartsGeek | |
| 122-0645B | 122-0645B | Service part / kit | Amazon eBay PartsGeek | |
| 122-0645C | quartsc | Service part / kit | Amazon eBay PartsGeek | |
| 122-0645D | 122-0645D | Service part / kit | Amazon eBay PartsGeek | |
| 122-0645I | 122-0645I | Service part / kit | Amazon eBay PartsGeek | |
| 122-0800 | Filter, Oil Without Hex Nut | Service part / kit | PartsGeek FridayParts $39.99 | |
| 122-0800B | 122-0800B | Service part / kit | Amazon eBay PartsGeek | |
| 122-0800C | quartsc | Service part / kit | Amazon eBay $29.00 PartsGeek | |
| 122-0827B | 122-0827B | Service part / kit | Amazon eBay PartsGeek | |
| 122-0833C | 122-0833C | Service part / kit | Amazon eBay PartsGeek | |
| 122-0893E | 122-0893E | Service part / kit | Amazon eBay PartsGeek | |
| 140-0495D | 140-0495D | Service part / kit | Amazon eBay PartsGeek | |
| 140-1229D | 140-1229D | Service part / kit | Amazon eBay PartsGeek | |
| 140-2379C | 140-2379c | Service part / kit | Amazon eBay PartsGeek | |
| 140-2379F | 140-2379c | Service part / kit | Amazon eBay PartsGeek | |
| 140-2609E | 140-2609E | Service part / kit | Amazon eBay PartsGeek | |
| 140-2842I | 140-2842I | Service part / kit | Amazon eBay PartsGeek | |
| 148-0898C | 148-0898C | Service part / kit | Amazon eBay PartsGeek | |
| 148-0898I | 148-0898I | Service part / kit | Amazon eBay PartsGeek | |
| 149-1353I | 149-1353I | Service part / kit | Amazon eBay PartsGeek | |
| 149-1914 | 05E | Service part / kit | PartsGeek | |
| 149-2137I | 149-2137I | Service part / kit | Amazon eBay PartsGeek | |
| 149-2279F | 149-2279F | Service part / kit | Amazon eBay PartsGeek | |
| 149-2279I | 149-2279I | Service part / kit | Amazon eBay PartsGeek | |
| 149-2341 | Filter, Fuel | Service part / kit | PartsGeek | |
| 167-0237B | 167-0237B | Service part / kit | Amazon eBay PartsGeek | |
| 167-0237C | 167-0237C | Service part / kit | Amazon eBay PartsGeek | |
| 167-0237D | 167-0237D | Service part / kit | Amazon eBay PartsGeek | |
| 167-0247D | 167-0247D | Service part / kit | Amazon eBay PartsGeek | |
| 167-0262B | 167-0262B | Service part / kit | Amazon eBay PartsGeek | |
| 167-0262D | 167-0262D | Service part / kit | Amazon eBay PartsGeek | |
| 167-0263 | 02I | Service part / kit | PartsGeek | |
| 167-0272D | 167-0272D | Service part / kit | Amazon eBay PartsGeek | |
| 167-0272G | 167-0272G | Service part / kit | Amazon eBay PartsGeek | |
| 167-0272I | 167-0272I | Service part / kit | Amazon eBay PartsGeek | |
| 167-0275I | 167-0275I | Service part / kit | Amazon eBay PartsGeek | |
| 167-0298B | 167-0298B | Service part / kit | Amazon eBay PartsGeek | |
| 167-0298C | 167-0298C | Service part / kit | Amazon eBay PartsGeek | |
| 167-0305I | 167-0305I | Service part / kit | Amazon eBay PartsGeek | |
| 185-5421 | Plug, Glow | Service part / kit | Amazon eBay PartsGeek | |
| 185-5835B | 185-5835B | Service part / kit | Amazon eBay PartsGeek | |
| 185-5835C | 185-5835C | Service part / kit | Amazon eBay PartsGeek | |
| 185-6623 | Plug, Glow | Service part / kit | Amazon eBay $45.00 PartsGeek | |
| 187-1000E | 187-1000E | Service part / kit | Amazon eBay PartsGeek | |
| 187-1289 | Plug, Glow (HR1) | Service part / kit | Amazon eBay PartsGeek | |
| 202-3005 | Service part / kit | PartsGeek | ||
| 286-6467 | ) | Service part / kit | PartsGeek | |
| 326-5366 | ) | Service part / kit | PartsGeek | |
| 333-0802 | Service part / kit | Amazon eBay $20.00 PartsGeek | ||
| 525-0305 | Quart Can (Onan Green Enamel) | Service part / kit | PartsGeek | |
| EC-20 | Battery and Generator Monitoring System | 1 | Service part / kit | PartsGeek yemparts $32.09 |
| EC-30W | Wireless Autostart System | 1 | Service part / kit | PartsGeek |
Compiled from this model's family documentation — may include parts for closely-related variants. 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% | 2.27 | 0.6 |
| Standby | 100% | 3.41 | 0.9 |
Available documents
Spec sheet — 0043135 (Cummins/Onan)Reference — F-1823-ENParts manual — 0058349 (Cummins/Onan)Parts manual — 0058449 (Cummins/Onan)