Service parts for the MD900
Grouped by system, with how many of each the parts manual calls for.
Oil system
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 | 900 kW |
| Standby kVA | 1125 |
| Prime power | 810 kW |
| Emissions | Tier 2 |
| Controller | InterliGen NT Display |
| Alternator | 900kW,125°C, NEMA H (4-pole, Class H insulation) |
| Voltage options | 120/208 V, 120/240 V, 277/480 V, 347/600 V |
| Phase | Three-Phase |
| Rated current | 3123 A |
| Power factor | 0.8 |
| Circuit breaker | 3123 A |
| Battery group | 8D |
| Battery voltage | 24 VDC V |
| Battery quantity | 2 |
| Coolant capacity | 76.0 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 4420×2261×2489 mm |
| Dry weight | 9473 kg |
| Fuel tank | 950.0 L |
| Tank runtime | 12 hr |
Engine
| Coolant capacity | 401.0 L |
|---|---|
| Displacement | 2265.0 L |
| Aspiration | Turbocharged, Intercooled |
| Rated speed | 1800 rpm |
Same engine, other brands
3 brandsThe Mitsubishi S12H-Y2PTAW-1 in this set also powers 4 generator sets sold under 3 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Kohler | 1000REOZMD, 900REOZMD |
| Rudox Power Generation | ERM1000 |
| Simson-Maxwell | SMW1000 T6-T2 |
Maintenance & consumables
for the Mitsubishi S12H-Y2PTAW-1| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry | — | |||
| Fuel filter | Cartridge | ×4 | — | 200 hr | |
| Oil filter | Cartridge | ×5 | GM13942 | Amazon eBay $37.99 NAPA $27.83 | |
| Battery | Battery | ×2 | — | 200 hr | |
| Belt | Belt | — | 200 hr | ||
| Coolant | Coolant | 76.3 gal | — | 200 hr | |
| Coolant filter | UV/Ozone resistant hoses | — | 12 hr | ||
| Oil | 200.0 L | — | 200 hr | ||
| Spark plug | Spark Plug | — | 200 hr |
Common questions
How many kW is the Generac MD900?
The Generac MD900 is rated 900 kW standby (1125.0 kVA).
Which engine powers the Generac MD900?
The Generac MD900 is powered by the Mitsubishi S12H-Y2PTAW-1 engine.
Is the Generac MD900 diesel or gas?
The Generac MD900 runs on Diesel.
What is the cooling system capacity of the Generac MD900?
The Generac MD900 cooling system holds 76 liters (20.1 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Generac MD900?
The Generac MD900 is rated 810 kW prime (1013 kVA), against 900 kW standby.
What is the dry weight of the Generac MD900?
The Generac MD900 has a dry weight of 9473 kg (20884 lb).
What size fuel tank does the Generac MD900 have?
The Generac MD900 has a 950 liter (251 US gallon) fuel tank, giving about 12 hours of runtime.
What voltages is the Generac MD900 available in?
The Generac MD900 is offered in 120/208 V, 120/240 V, 277/480 V, 347/600 V, Three-Phase-phase.
What size battery does the Generac MD900 need?
The Generac MD900 uses 2 batteryies, 24 VDC V each, group 8D, per the manufacturer specification sheet.
What alternator does the Generac MD900 use?
The Generac MD900 uses a 900kW,125°C, NEMA H alternator. It has 4 poles. Insulation class H.
What oil filter fits the Generac MD900?
The Generac MD900 uses oil filter part number GM13942.
Parts
15| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0161970SBY | Battery | 1 | Battery | Amazon eBay |
| 01865 | Fuel/Water Filtering System | Fuel filter | Amazon eBay | |
| 18650 | Oil filter | Oil filter | Amazon | |
| 01859 | Serial Number Locations | Service part / kit | Amazon eBay | |
| 01860 | GFCI Receptacle and Interior Light Timer | Service part / kit | Amazon eBay | |
| 01861 | Component Locations - Left Side | Service part / kit | Amazon eBay | |
| 01862 | Component Locations - Right Side | Service part / kit | Amazon eBay | |
| 01863 | Control Panel | Service part / kit | Amazon eBay | |
| 01864 | Digital Controller | Service part / kit | Amazon eBay | |
| 01866 | Parallel Setup and Operation | Service part / kit | Amazon eBay | |
| 01867 | Generator Output Connections | Service part / kit | Amazon eBay | |
| 01868 | Voltage Regulator | Service part / kit | Amazon eBay | |
| 01870 | A299X- 68-03 fos! 104 F1035-12045 25-01 | 29 5 | F1805-10020 68-01 fo5 19 | Service part / kit | Amazon eBay | |
| 01871 | Maintenance schedule and basic maintenance tasks for MCG1000MT2 | Service part / kit | Amazon eBay | |
| 01873 | Maintenance schedule and extended maintenance tasks for MCG1000MT2 | Service part / kit | Amazon eBay |
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 | 25% | 92.0 | 24.3 |
| Standby | 50% | 160.1 | 42.3 |
| Standby | 75% | 233.2 | 61.6 |
| Standby | 100% | 294.9 | 77.9 |
Available documents
This page was generated from the 2 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.