Service parts for the MD1000GEM
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredBelts
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 | 1000 kW |
| Standby kVA | 1250 |
| Prime power | 900 kW |
| Emissions | EPA Certified Stationary Emergency |
| Controller | Integrated Paralleling |
| Oil capacity | 48.0 L |
| Alternator | WEG (4-pole, Class H insulation) |
| Voltage options | 277/480 V, 346/600 V |
| Phase | Three-Phase |
| Rated current | 1505 A |
| Power factor | 0.8 |
| Circuit breaker | 1505 A |
| Battery group | 8D |
| Battery cranking | 1155 CCA |
| Battery voltage | 24 V |
| Battery quantity | 2 |
| Coolant capacity | 60.2 L |
| Max ambient | 40 °C |
| Dimensions (L×W×H) | 258×96×151 mm |
| Dry weight | 25130 kg |
| Fuel tank | 33.0 L |
| Tank runtime | 21000 hr |
Engine
| Oil capacity | 48.0 L |
|---|---|
| Coolant capacity | 33.0 L |
| Displacement | 16.12 L |
| Aspiration | Turbocharged/Aftercooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Generac MD1000| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 11" O.D. 7" outlet | C1993 | eBay | ||
| Fuel filter | 0A88290194 | eBay | |||
| Oil filter | 0A53990233 | eBay $44.00 | |||
| Battery | 8D | — | |||
| Belt | 0A88290584 | eBay $275.00 | |||
| Coolant | 50/50 mixture of low silicate ethylene glycol base anti-freeze and soft water | 85.0 L | — | ||
| Oil | API Classification For Service CC or CD | 48.0 L | — |
Common questions
How many kW is the Generac MD1000GEM?
The Generac MD1000GEM is rated 1000 kW standby (1250.0 kVA).
What engine does the Generac MD1000GEM use?
The Generac MD1000GEM is powered by the Generac MD1000 engine.
Is the Generac MD1000GEM diesel or gas?
The Generac MD1000GEM runs on Diesel.
How much oil does the Generac MD1000GEM take?
The Generac MD1000 engine in the Generac MD1000GEM has an oil capacity of 48.0 liters.
What is the coolant capacity of the Generac MD1000GEM?
The Generac MD1000GEM cooling system holds 60.2 liters (15.9 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Generac MD1000GEM?
The Generac MD1000GEM is rated 900 kW prime (1125 kVA), against 1000 kW standby.
What is the dry weight of the Generac MD1000GEM?
The Generac MD1000GEM has a dry weight of 25130 kg (55402 lb).
What size fuel tank does the Generac MD1000GEM have?
The Generac MD1000GEM has a 33 liter (9 US gallon) fuel tank, giving about 21000 hours of runtime.
What voltages is the Generac MD1000GEM available in?
The Generac MD1000GEM is offered in 277/480 V, 346/600 V, Three-Phase-phase.
What size battery does the Generac MD1000GEM need?
The Generac MD1000GEM uses 2 batteryies, 24 V each, 1155 CCA, group 8D, per the manufacturer specification sheet.
Which alternator is fitted to the Generac MD1000GEM?
The Generac MD1000GEM uses a WEG alternator. It has 4 poles. Insulation class H.
Which oil filter part number does the Generac MD1000GEM take?
The Generac MD1000GEM uses oil filter part number 0A53990233.
What fuel filter fits the Generac MD1000GEM?
The Generac MD1000GEM uses fuel filter part number 0A88290194.
Which air filter part number does the Generac MD1000GEM take?
The Generac MD1000GEM uses air filter part number C1993.
Parts
112| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0A53990233 | ELEMENT KIT, BY-PASS OIL FILTER (TO 9903-3) | 1 | Oil filter | eBay $44.00 |
| 0A88290108 | DUST SEAL, FUEL INJECTION NOZZLE HOLDER | 8 | Seal | eBay |
| 0A88290130 | SEAL, CYLINDER LINER | 8 | Seal | eBay |
| 0A88290136 | OIL SEAL, REAR MAIN | 1 | Seal | eBay |
| 0A88290150 | GASKET, OIL FILTER CASE | 1 | Gasket | eBay |
| 0A88290154 | CASE, OIL FILTER (TO 9903-3) | 1 | Oil filter | eBay |
| 0A88290155 | ELEMENT KIT, MAIN OIL FILTER (TO 9901-3) | 1 | Oil filter | eBay |
| 0A88290184 | ALTERNATOR ASSY | 1 | Alternator | eBay |
| 0A88290189 | SEAL RING, EXHAUST MANIFOLD | 14 | Seal | eBay |
| 0A88290191 | SWITCH | 1 | Sensor | eBay |
| 0A88290192 | GASKET, T/C OIL RETURN TUBE | 2 | Gasket | eBay |
| 0A88290193 | HEAD, FUEL FILTER | 1 | Fuel filter | eBay |
| 0A88290194 | FUEL FILTER | 1 | Fuel filter | eBay |
| 0A88290196 | OIL SEAL, CRANKSHAFT, FRONT | 1 | Seal | eBay |
| 0A88290209 | GASKET, T/C | 2 | Gasket | eBay |
| 0A88290226 | GASKET, EXHAUST MAIN MANIFOLD | 2 | Gasket | eBay |
| 0A88290240 | HOSE, ENG. BREATHER | 2 | Hose | eBay $94.75 |
| 0A88290242 | HOSE, T/C OIL RETURN TUBE, LH | 1 | Hose | eBay |
| 0A88290243 | HOSE, T/C OIL RETURN TUBE, RH | 1 | Hose | eBay |
| 0A88290249 | ELEMENT KIT, MAIN & BY-PASS OIL FILTER (TO 9901-3) | 1 | Oil filter | eBay |
| 0A88290250 | OIL FILTER & HEAD ASSY, BY-PASS (TO 9903-3) | 1 | Oil filter | eBay |
| 0A88290262 | HOSE, COOLANT LINE | 2 | Hose | eBay |
| 0A88290263 | GASKET, THERMOSTAT COVER | 2 | Gasket | eBay |
| 0A88290265 | SEAL RING, EXHAUST MANIFOLD | 28 | Seal | eBay $55.18 |
| 0A88290266 | GASKET, EXHAUST MANIFOLD | 8 | Gasket | eBay |
| 0A88290273 | HEATER, AIR INTAKE | 2 | Glow plug | eBay |
| 0A88290275 | STARTER ASSY (TO 9908-3) | 1 | Starter | eBay |
| 0A88290283 | FUEL FILTER ASSY | 1 | Fuel filter | eBay |
| 0A88290284 | GASKET, WATER PUMP | 1 | Gasket | eBay |
| 0A88290286 | GASKET, WATER PUMP CASE TO COVER | 1 | Gasket | eBay |
| 0A88290287 | O-RING, WATER PUMP INNER | 1 | Seal | eBay |
| 0A88290288 | OIL SEAL, WATER PUMP SHAFT | 1 | Seal | eBay |
| 0A88290299 | GASKET, ENG. RR PLATE | 1 | Gasket | eBay |
| 0A88290302 | GASKET, INTAKE AIR HEATER (TO 9904-3) | 2 | Gasket | eBay |
| 0A88290303 | GASKET, INLET MANIFOLD | 8 | Gasket | eBay $32.49 |
| 0A88290305 | OIL PUMP ASSY, ENG. (FROM 9801-1) | 1 | Pump | eBay |
| 0A88290309 | OIL SEAL, WATER PUMP SHAFT | 1 | Seal | eBay |
| 0A88290325 | GASKET, CYLINDER HEAD | 2 | Gasket | eBay |
| 0A88290326 | IMPELLER, WATER PUMP | 1 | Impeller | eBay |
| 0A88290327 | SEAL UNIT, WATER PUMP SHAFT | 1 | Seal | eBay |
| 0A88290341 | GASKET, ROCKER CASE | 2 | Gasket | eBay |
| 0A88290402 | PUMP ASSY, FUEL INJECTION (FROM 9905-1) | 1 | Pump | eBay |
| 0A88290406 | NOZZLE AND HOLDER ASSY, FUEL INJECTION | 8 | Injector | eBay |
| 0A88290407 | PUMP ASSY, FUEL INJECTION (TO 9904-3) | 1 | Pump | eBay |
| 0A88290411 | ELEMENT KIT, MAIN OIL FILTER (FROM 9902-1) | 1 | Oil filter | eBay |
| 0A88290412 | ELEMENT KIT, MAIN & BY-PASS OIL FILTER (FROM 9902-1) | 1 | Oil filter | eBay |
| 0A88290413 | GASKET, OIL FILTER CASE (TO 9906-1) | 1 | Gasket | eBay |
| 0A88290423 | SEAL, VALVE STEM | 16 | Seal | eBay |
| 0A88290429 | GASKET, ENG. OIL PAN | 1 | Gasket | eBay |
| 0A88290431 | STARTER ASSY (FROM 9909-1) | 1 | Starter | eBay |
| 0A88290434 | CASE, OIL FILTER (FROM 9904-1) | 1 | Oil filter | eBay |
| 0A88290435 | OIL FILTER & HEAD ASSY, BY-PASS (FROM 9904-1) | 1 | Oil filter | eBay |
| 0A88290436 | ELEMENT KIT, BY-PASS OIL FILTER (FROM 9904-1) | 1 | Oil filter | eBay |
| 0A88290455 | PUSH ROD, FUEL INJECTION NOZZLE HOLDER | 8 | Injector | eBay |
| 0A88290456 | SPRING, FUEL INJECTION NOZZLE HOLDER | 8 | Injector | eBay |
| 0A88290459 | PUSH ROD, FUEL INJECTION NOZZLE HOLDER | 8 | Injector | eBay |
| 0A88290463 | HOLDER ASSY, FUEL INJECTION NOZZLE | 8 | Injector | eBay |
| 0A88290464 | SPRING, FUEL INJECTION NOZZLE HOLDER | 8 | Injector | eBay |
| 0A88290499 | SHIM, FUEL INJECTION NOZZLE (07433B) T=1.54 | AR | Injector | eBay |
| 0A88290500 | SHIM, FUEL INJECTION NOZZLE (07433C) T=0.75 | AR | Injector | eBay |
| 0A88290575 | SHIM, FUEL INJECTION NOZZLE (07433C) T=1.50 | AR | Injector | eBay |
| 0A88290576 | SHIM, FUEL INJECTION NOZZLE (07433B) T=0.100 | AR | Injector | eBay |
| 0A88290580 | PUMP ASSY, INJECTION PUMP FUEL FEED | 1 | Pump | eBay |
| 0A88290581 | TIMER ASSY, INJECTION PUMP | 1 | Fuel pump | eBay $387.55 |
| 0A88290582 | NOZZLE, FUEL INJECTION | 8 | Injector | eBay |
| 0A88290583 | GOVERNOR ASSY, INJECTION PUMP (TO 9904-3) | 1 | Fuel pump | eBay |
| 0A88290584 | BELT, ALTERNATOR | 1 | Belt | eBay $275.00 |
| 0A88290593 | WATER PUMP KIT | 1 | Pump | eBay |
| 0A88290603 | GASKET KIT, ENGINE OVERHAUL | 1 | Gasket | eBay $2925.52 |
| 0A88290604 | WATER PUMP ASSY | 1 | Pump | eBay |
| 0A88290606 | THERMOSTAT KIT | 1 | Thermostat | eBay |
| 0A88290696 | GASKET, FLYWHEEL HOUSING | 1 | Gasket | eBay |
| 0A88290771 | HOSE, INJECTION | 1 | Hose | eBay |
| 0A88290772 | HOSE | 1 | Hose | eBay |
| 0A88290814 | BEARING, WATER PUMP | 1 | Pump | eBay $54.22 |
| 0A88290815 | BEARING, WATER PUMP | 2 | Pump | eBay $77.30 |
| 0A88290828 | GASKET, COOLANT OUTLET HOSE FITTING | 2 | Gasket | eBay |
| 0A88290833 | OIL PUMP ASSY, ENG. (TO 9712-3) | 1 | Pump | eBay |
| 0A88290841 | GOVERNOR ASSY, INJECTION PUMP (FROM 9905-1) | 1 | Fuel pump | eBay |
| 0A88290875 | GASKET, FLYWHEEL HOUSING RR COVER | 1 | Gasket | eBay |
| 53666 | SENDER, OIL PRESSURE (GENERAC ALTERNATOR) | 1 | Sensor | eBay |
| 53667 | TEMPERATURE SENSOR | 1 | Sensor | Amazon eBay |
| 82130D | MAGNETIC PICKUP | 1 | Sensor | eBay |
| A5260A | HOSE, 3" I.D. X 3" LONG | 2 | Hose | eBay |
| A6814 | SENDER SWITCH | 1* | Sensor | eBay |
| A6814A | SENDER SWITCH | 1* | Sensor | eBay |
| A8584 | OIL PRESSURE SWITCH | 1 | Sensor | Amazon eBay |
| C1134 | SENDER, OIL PRESSURE (MARATHON ALTERNATOR) | 1 | Sensor | eBay |
| C1952 | TURBO AIR INTAKE, 16L | 1 | Turbocharger | eBay |
| C1993 | AIR CLEANER, 11" O.D. 7" OUTLET | 1 | Air filter | eBay |
| C2075 | EXHAUST, SEALING RING | 2 | Gasket | eBay |
| C2365 | TURBO 16L L.H. | 1 | Turbocharger | eBay |
| C2366 | TURBO 16L R.H. | 1 | Turbocharger | eBay |
| C2780 | GASKET, AIR INTAKE | 2 | Gasket | eBay |
| 0A88290183 | SOLENOID, ENGINE STOP | 1 | Service part / kit | eBay |
| 0A88290227 | ADAPTER, EXHAUST MANIFOLD | 2 | Service part / kit | eBay |
| 0A88290259 | STRAINER, ENG. OIL PAN (FROM 9801-1) | 1 | Service part / kit | eBay |
| 0A88290261 | BREATHER, ENG. | 2 | Service part / kit | eBay |
| 0A88290290 | OIL COOLER ASSY, ENG. | 1 | Service part / kit | eBay |
| 0A88290353 | BEARING SET, CONNROD, STD | 1 | Service part / kit | eBay |
| 0A88290358 | BEARING SET, CRANKSHAFT, STD | 1 | Service part / kit | eBay $917.74 |
| 0A88290365 | PISTON, A SIZE | AR | Service part / kit | eBay |
| 0A88290366 | PISTON, B SIZE | AR | Service part / kit | eBay |
| 0A88290367 | PISTON, C SIZE | AR | Service part / kit | eBay |
| 0A88290368 | PISTON, O.S. 0.50 | AR | Service part / kit | eBay |
| 0A88290369 | PISTON, O.S. 0.75 | AR | Service part / kit | eBay |
| 0A88290370 | PISTON, O.S. 1.00 | AR | Service part / kit | eBay |
| 0A88290373 | ELEMENT, ENG. OIL COOLER | 1 | Service part / kit | eBay |
| 0A88290408 | ROD, ENGINE STOP SOLENOID | 1 | Service part / kit | eBay |
| 0A88290598 | RING SET, PISTON, STD | 1 | Service part / kit | eBay |
| 0A88290602 | LINER & PISTON KIT | AR | Service part / kit | eBay |
| 0A88290827 | STRAINER, ENG. OIL PAN (TO 9712-3) | 1 | Service part / kit | 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 |
|---|---|---|---|
| Prime | 25% | 56.6 | 15.4 |
| Prime | 50% | 101.4 | 26.8 |
| Prime | 75% | 150.6 | 39.8 |
| Prime | 100% | 212.8 | 56.2 |
| Standby | 25% | 65.8 | 17.4 |
| Standby | 50% | 115.8 | 30.6 |
| Standby | 75% | 171.86 | 45.4 |
| Standby | 100% | 237.0 | 62.6 |
Available documents
Spec sheet — md01000gem-1000kw-gemini-diesel-generator-specsheet (Generac)Parts manual — 0173810sby-md1000 (Generac)
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.