Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 35 kW |
| Standby kVA | 44 |
| Prime power | 33 kW |
| Emissions | Interim Tier IV |
| Controller | Mobile Digital |
| Oil capacity | 13.2 L |
| Alternator | G350 (6-pole, Class H insulation) |
| Voltage options | 120/240 V, 120/208 V, 277/480 V |
| Phase | 3-phase |
| Rated current | 95.6 A |
| Power factor | 0.8 |
| Circuit breaker | 200 A |
| Battery cranking | 720 CCA |
| Max ambient | 48.89 °C |
| Dimensions (L×W×H) | 2410×890×1320 mm |
| Dry weight | 1056 kg |
| Sound level | 68.0 dBA @ 7.01 m |
| Fuel tank | 401.2 L |
| Tank runtime | 31 hr |
Engine
| Oil capacity | 13.2 L |
|---|---|
| Coolant capacity | 16.6 L |
| Displacement | 3.6 L |
| Aspiration | turbocharged |
| Rated speed | 1800 rpm |
Same engine, other brands
1 brandThe Kubota V3600-T-E3BG 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 |
|---|---|
| Magnum | MMG45FHKCAN6, MMG45K |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 250 hr | |||
| Fuel filter | — | 1000 hr | |||
| Oil filter | — | 250 hr | |||
| Battery | — | 250 hr | |||
| Belt | — | 500 hr | |||
| Coolant | 4.7 L | — | 2000 hr | ||
| Oil | — | 250 hr | |||
| Spark plug | — | 1000 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
How many kW is the Generac MMG45FHK?
The Generac MMG45FHK is rated 35 kW standby (44.0 kVA).
What engine does the Generac MMG45FHK use?
The Generac MMG45FHK is powered by the Kubota V3600-T-E3BG engine.
What fuel does the Generac MMG45FHK use?
The Generac MMG45FHK runs on diesel.
What is the oil capacity of the Generac MMG45FHK?
The Kubota V3600-T-E3BG engine in the Generac MMG45FHK has an oil capacity of 13.2 liters.
What is the cooling system capacity of the Generac MMG45FHK?
The Generac MMG45FHK cooling system holds 16.6 liters (4.4 US gallons) for the engine, per the manufacturer specification sheet.
What is the prime power rating of the Generac MMG45FHK?
The Generac MMG45FHK is rated 33 kW prime (41 kVA), against 35 kW standby.
How loud is the Generac MMG45FHK?
The Generac MMG45FHK is rated at 68.0 dBA at 7.01 m, per the manufacturer specification sheet.
How much does the Generac MMG45FHK weigh?
The Generac MMG45FHK has a dry weight of 1056 kg (2328 lb).
What size fuel tank does the Generac MMG45FHK have?
The Generac MMG45FHK has a 401.2 liter (106 US gallon) fuel tank, giving about 31 hours of runtime.
What voltages is the Generac MMG45FHK available in?
The Generac MMG45FHK is offered in 120/240 V, 120/208 V, 277/480 V, 3-phase-phase.
What size battery does the Generac MMG45FHK need?
The Generac MMG45FHK uses 720 CCA, per the manufacturer specification sheet.
What alternator does the Generac MMG45FHK use?
The Generac MMG45FHK uses a G350 alternator. It has 6 poles. Insulation class H.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Low Fuel Level Shut Down | Check fuel level on LCD display. Check for fuel tank leaks. The engine controller will shut the engine down when there is five percent of fuel remaining in the tank. | Check the fuel level sender and connecting wiring for damage. To check for continuity between sender and engine controller, remove the appropriate bolts from control panel to access the inside of the control box. Consult the appropriate DC wiring diagram for the proper path between the engine controller and the fuel level sender. |
| Low Oil Pressure Shut Down | Check the engine oil level with the dipstick. Add oil if required. Inspect engine for oil leaks. | If oil level is good, restart the unit and verify loss of oil pressure. Shut the engine down immediately if the oil pressure value does not read 5 psi (34 kPa) within five seconds. Check oil pressure sender. To identify corrective action, refer to the troubleshooting section of the engine operator’s manual provided with the unit. |
| Low Coolant Level Shut Down | Allow engine to cool. Confirm unit is level to ensure an accurate reading. | Check coolant level in radiator. Open the front hood to access the radiator cap. Add coolant until it is 3/4 in. (1.9 cm) below filler neck. Secure the radiator cap back into its original position. Inspect coolant hoses, engine block and water pump for visible leaks. Check engine oil to verify no coolant has mixed with it. Oil will appear milky if coolant is present. |
| High Coolant Temperature Shut Down | Check coolant level in overflow jug. | Restart engine and read coolant temperature to verify high coolant temperature shutdown. Stop engine immediately if coolant temperature is 230°F (110°C) or more. Allow engine to cool. Add coolant to overflow jug if it is low and then check coolant level in radiator. Open front hood to access the radiator cap. Add coolant until it is 3/4 in. (1.9 cm) below filler neck. Secure radiator cap back into its original position. Check radiator shroud and ducting for blockage and remove any foreign matter. Inspect coolant hoses, engine block and water pump for visible leaks. Check the tension of the water pump belt. If no other problems are found, remove the load on the generator and restart the engine. Check the coolant temperature and shut the engine down immediately if it starts to overheat. |
| Overcrank Shut Down | Check fuel level in tank. Check for proper operation of the fuel pump. Check air filter for blockage. | If engine will not start, consult the engine operation and maintenance manual. |
| Overspeed or Underspeed Shut Down | Disconnect all loads and restart generator. Read the frequency (Hz) on the display. With no loads on the generator, the frequency should read 60.0 Hz. | If frequency is above or below 60.0 Hz, the engine speed needs to be adjusted. See the engine manual for throttle adjustments on mechanical governed units and see the electronic governor manual for electronically controlled units. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
6| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 34550 | Decal, 600V Circuit Breakers (MMG45FHKCAN6 only) | 1 | Circuit breakers 600v decal | Amazon eBay |
| 21259 | Decal, Battery Charger (Optional) | 1 | Service part / kit | Amazon eBay NAPA $86.31 |
| 26387 | Decal Set, Rear Hood Latch | 1 | Service part / kit | Amazon eBay FridayParts $18.23 |
| 28964 | Decal, Engine Block Heater (Optional) | 1 | Service part / kit | Amazon eBay NAPA $44.60 |
| 31024 | Decal, Fan Clutch (Optional) | 1 | Service part / kit | Amazon eBay |
| 34424 | Decal Set, Voltage Selector Switch NEUTRAL BONDED TO FRAME | 1 | 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 |
|---|---|---|---|
| Prime | 50% | 5.7 | 1.5 |
| Prime | 75% | 8.7 | 2.3 |
| Prime | 100% | 11.4 | 3.0 |
Available documents
This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.