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 |
| Oil capacity | 180.0 L |
| 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 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
| Oil capacity | 200.0 L |
|---|---|
| Coolant capacity | 401.0 L |
| Displacement | 2265.0 L |
| Aspiration | Turbocharged, Intercooled |
| Rated speed | 1800 rpm |
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 $60.99 eBay $37.99 | |
| 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.
How much oil does the Generac MD900 take?
The Mitsubishi S12H-Y2PTAW-1 engine in the Generac MD900 has an oil capacity of 200.0 liters.
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
16| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0161970SBY | Battery | 1 | Battery | Amazon eBay |
| 01865 | Fuel/Water Filtering System | Fuel filter | Amazon eBay | |
| 18650 | Oil filter | Amazon eBay $24.69 | ||
| 01858 | Engine Oil Recommendations | Service part / kit | Amazon eBay | |
| 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 |