Service parts for the 800 DQCC
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredElectrical
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 800 kW |
| Emissions | Tier 2 |
| Controller | PowerCommand 2.3 |
| Oil capacity | 102.0 L |
| Alternator | Alternator-60Hz,3 Phase,Wye,Limited Range 125C |
| Voltage options | 277/480 V |
| Phase | 3 Phase |
| Circuit breaker | 1200 A |
| Battery voltage | 24 V |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 4762×2083×1595 mm |
| Dry weight | 2262 kg |
| Sound level | 91.3 dBA @ 7 m |
Engine
| Oil capacity | 102.0 L |
|---|---|
| Coolant capacity | 109.5 L |
| Displacement | 23.15 L |
| Aspiration | Turbocharged and low temperature after-cooled |
| Rated speed | 1800 rpm |
Filters for the Cummins/Onan QSK23-G7 NR2
2Engine-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 | |
|---|---|---|---|---|
| Fuel / water separator | P552006 | Fuel Filter, Water Separator Spin-On Twist&Drain | CUMMINS 3089916, CUMMINS 4095189, NAPA 3645, BALDWIN BF1262 | FridayParts $42.88 |
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P551670 | Lube Filter, Spin-On Full Flow | CUMMINS 298670, CUMMINS 299670, NAPA 1970, CARBOCOL 0026 | FridayParts $26.68 |
Same engine, other brands
1 brandThe Cummins/Onan QSK23-G7 NR2 in this set also powers 2 generator sets sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| MQ Power | 800kW Containerized Diesel Generator Set, CG800C2 |
Maintenance & consumables
for the Cummins/Onan QSK23-G7 NR2| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Cleaner replacement element (Nelson), for Air Cleaner Housing 140-3737 | AF2559300 | Amazon eBay | ||
| Fuel filter | 30 micron Racor ® fuel/water separator filter | — | 500 hr | ||
| Oil filter | 4 Spin-on, Full Flow | — | 500 hr | ||
| Battery | 10Amp, 120/208/240VAC, 12/24V, 50/60Hz | A048G602 | 500 hr | eBay | |
| Belt | Belt Driven, Centrifugal | — | |||
| Coolant | -45 | 109.5 | — | ||
| Oil | Oil level is full | 102.0 | — | ||
| Spark plug | not specified | — |
Fault codes
4| 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 reference voltage, time delay 2-20 seconds. Default value is 85% for 10 seconds. | Shutdown | |
| 59 | High AC voltage shutdown | Output voltage on any phase exceeds preset values. Time to trip is inversely proportional to amount above threshold. Values adjustable from 105-125% of nominal voltage, with time delay adjustable from 0.1-10 seconds. Default value is 110% for 10 seconds. | Shutdown | |
| 81 o | Over frequency shutdown/warning | Generator set is operating at a potentially damaging frequency level. Settings adjustable from 2-10 Hz above nominal governor set point for a 1-20 second time delay. Default: 6 Hz, 20 seconds, disabled. | Warning | |
| 81 u | Under frequency shutdown | Generator set output frequency cannot be maintained. Settings adjustable from 2-10 Hz below reference governor set point, for a 5-20 second time delay. Default: 6 Hz, 10 seconds. | 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 size generator is the Cummins/Onan 800 DQCC?
The Cummins/Onan 800 DQCC is rated 800 kW standby.
What engine is in the Cummins/Onan 800 DQCC?
The Cummins/Onan 800 DQCC is powered by the Cummins/Onan QSK23-G7 NR2 engine.
What fuel does the Cummins/Onan 800 DQCC use?
The Cummins/Onan 800 DQCC runs on Diesel.
What's the oil capacity on a Cummins/Onan 800 DQCC?
The Cummins/Onan QSK23-G7 NR2 engine in the Cummins/Onan 800 DQCC has an oil capacity of 102.0 liters.
What is the cooling system capacity of the Cummins/Onan 800 DQCC?
The Cummins/Onan 800 DQCC cooling system holds 109.5 liters (28.9 US gallons) for the engine, per the manufacturer specification sheet.
What is the sound level of the Cummins/Onan 800 DQCC?
The Cummins/Onan 800 DQCC is rated at 91.3 dBA at 7 m, per the manufacturer specification sheet.
What is the dry weight of the Cummins/Onan 800 DQCC?
The Cummins/Onan 800 DQCC has a dry weight of 2262 kg (4986 lb).
What voltages is the Cummins/Onan 800 DQCC available in?
The Cummins/Onan 800 DQCC is offered in 277/480 V, 3 Phase-phase.
What alternator does the Cummins/Onan 800 DQCC use?
The Cummins/Onan 800 DQCC uses a Alternator-60Hz,3 Phase,Wye,Limited Range 125C alternator.
What air filter fits the Cummins/Onan 800 DQCC?
The Cummins/Onan 800 DQCC uses air filter part number AF2559300.
Parts
10| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 501-0876 | Line, Fuel Cooler Return (Bearward Cooling System, not shown) | 1 | Hose | Amazon eBay |
| 501-0877 | Line, Fuel Supply (Engine Accessories group) | 1 | Hose | Amazon eBay |
| 501-0892 | Line, Fuel Cooler Supply (Bearward Cooling System, not shown) | 1 | Hose | Amazon eBay |
| 503-1675 | Hose, Reducer (Air Cleaner group) | 1 | Hose | Amazon eBay |
| 503-2754-01 | Hose, Oil | 1 | Hose | Amazon eBay |
| A053A190 | Hose, Oil (Valve group) | 1 | Hose | Amazon eBay |
| A055E534 | Switch, Level (low coolant level warning) | 1 | Sensor | Amazon eBay |
| A059Z452 | Seal, O Ring (Valve group) | 1 | Seal | Amazon eBay |
| AF2559300 | Air Cleaner replacement element (Nelson), for Air Cleaner Housing 140-3737 | 1 | Air filter | Amazon eBay |
| 140-1548 | Indicator, Service | 1 | Service part / kit | Amazon eBay $49.99 NAPA $32.16 |
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.
Available documents
This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.