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Magnum MMG175 Super Start Generator Set

The Magnum MMG175 Super Start is a 153 kW (191 kVA) standby generator set powered by a John Deere PE6068HFG94 engine. It is available at 120 V, 139 V, 208 V, 220 V, 240 V and 277 V, 3Ø, 60 Hz and rated 230 A. It holds about 31.5 L (8.3 gal) of oil and 29.8 L (7.9 gal) of coolant. Starting uses 1 group-31 battery rated 1000 CCA at 12 V. The set weighs about 3206 kg (7068 lb). An integrated tank holds 1295 L (342.1 gal), roughly 29 hours of runtime. The same PE6068HFG94 engine also powers generator sets from Generac.

153 kW
Standby
6.8 L
Displacement
31.5 L
Oil capacity
0
Document types

Specifications

Frequency60.0 Hz
Standby power153 kW
Standby kVA191
Prime power138 kW
Oil capacity31.5 L
AlternatorMarathon 431PSL6306
Voltage options120 V, 139 V, 208 V, 220 V, 240 V, 277 V
Phase3Ø
Rated current230 A
Power factor1 (1Ø), 0.8 (3Ø)
Circuit breaker700 A
Battery group31
Battery cranking1000 CCA
Battery voltage12V V
Battery quantity1
Dry weight3206 kg
Fuel tank1295.0 L
Tank runtime29 hr

Engine

John Deere PE6068HFG94
Oil capacity31.2 L
Coolant capacity29.8 L
Displacement6.8 L
Aspirationturbocharged
Rated speed1800 rpm

Same engine, other brands

1 brand

The John Deere PE6068HFG94 in this set also powers 1 generator set sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
GeneracMMG175

Common questions

What is the power rating of the Magnum MMG175 Super Start?

The Magnum MMG175 Super Start is rated 153 kW standby (191.0 kVA).

What engine is in the Magnum MMG175 Super Start?

The Magnum MMG175 Super Start is powered by the John Deere PE6068HFG94 engine.

What's the oil capacity on a Magnum MMG175 Super Start?

The John Deere PE6068HFG94 engine in the Magnum MMG175 Super Start has an oil capacity of 31.2 liters.

How much coolant does the Magnum MMG175 Super Start hold?

The Magnum MMG175 Super Start cooling system holds 29.8 liters (7.9 US gallons) for the engine, per the manufacturer specification sheet.

What is the continuous rating of the Magnum MMG175 Super Start?

The Magnum MMG175 Super Start is rated 138 kW prime (172 kVA), against 153 kW standby.

How much does the Magnum MMG175 Super Start weigh?

The Magnum MMG175 Super Start has a dry weight of 3206 kg (7068 lb).

What size fuel tank does the Magnum MMG175 Super Start have?

The Magnum MMG175 Super Start has a 1295 liter (342 US gallon) fuel tank, giving about 29 hours of runtime.

What voltages is the Magnum MMG175 Super Start available in?

The Magnum MMG175 Super Start is offered in 120 V, 139 V, 208 V, 220 V, 240 V, 277 V, 3Ø-phase.

What size battery does the Magnum MMG175 Super Start need?

The Magnum MMG175 Super Start uses 1 battery, 12V V each, 1000 CCA, group 31, per the manufacturer specification sheet.

Which alternator is fitted to the Magnum MMG175 Super Start?

The Magnum MMG175 Super Start uses a Marathon 431PSL6306 alternator.

Troubleshooting

42

Fault codes

CodeMeaning
SPN:100EngOil Press
SPN:102Boost Press
SPN:105Intake Temp
SPN:110EngCool Temp
SPN:175EngOil Temp
SPN:629Controller #1
SPN:636PositionSensor
SPN:637TimingSensor
SPN:651InjectorCyl#1
SPN:652InjectorCyl#2
SPN:653InjectorCyl#3
SPN:654InjectorCyl#4
SPN:655InjectorCyl#5
SPN:656InjectorCyl#6
SPN:677EngStartRelay
SPN:1485ECU MainRelay
SPN:3719.15High soot load caution
SPN:3719.16Very high soot load warning
SPN:3719.00Very high soot load - needs service
UbatBattery voltage is out of limits given by Batt Undervolt setpoints.

Symptoms & remedies

SymptomCauseRemedy
WrnMaintenance (Time to Service reminder displayed)Unit is due for maintenance or service (250 hour interval)Reset the running hours to 250: with the unit shut down, power up the controller with the Control On/Off toggle switch; press PAGE SELECT; press the down button to move the > cursor to Engine Protect; press ENTER; press ENTER again; press the up button and reset the current run time hour setting to 250; press ENTER to save; move the CONTROL ON/I toggle switch to the CONTROL OFF/O position
Low fuel level shutdownFuel level low (engine controller shuts the engine down when there is 5% of fuel remaining in the tank)Check the fuel level on the LCD window and confirm the generator is sitting level to ensure an accurate reading
Low fuel level shutdownLeaks in the fuel tankCheck for leaks in the fuel tank; the fuel tank should not run dry under normal circumstances
Low fuel level shutdownFuel level sender and connecting wiring damagedCheck the fuel level sender and the connecting wiring for damage; to check for continuity between the sender and the engine controller, remove the appropriate bolts from the control panel to access the inside of the control box and consult the DC wiring diagram for the proper path between the engine controller and the fuel level sender
Low oil pressure shutdownLow engine oil level (engine controller shuts the engine down when the oil pressure is less than 20 psi (138kPa))Check the level of the engine oil with the dipstick; add oil if required
Low oil pressure shutdownOil leaksVisually inspect the engine for oil leaks
Low oil pressure shutdownLoss of oil pressureIf the oil level is good, restart the unit and verify the loss of oil pressure; shut the engine down immediately if the oil pressure value does not read 5 psi (34kPa) within 5 seconds
Low oil pressure shutdownOil pressure senderCheck the 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 shutdownLow coolant levelAllow the engine to cool and confirm the unit is sitting level to ensure an accurate reading; check the coolant level in the radiator (remove the access panel from the top of the enclosure directly above the radiator to access the radiator cap) and add coolant until it is 3/4 in. (1.9 cm) below the filler neck; secure the radiator cap back into its original position
Low coolant level shutdownVisible leaksInspect coolant hoses, engine block and water pump for visible leaks
Low coolant level shutdownCoolant mixed with engine oilCheck the engine oil to verify no coolant has mixed with it (oil will appear milky if coolant is present); consult the engine operator's manual for additional information
High coolant temperature shutdownLow coolant level in the overflow jugCheck the coolant level in the overflow jug; allow the engine to cool, add coolant to the overflow jug if it is low and then check the level of coolant in the radiator (remove the access panel from the top of the enclosure directly above the radiator to access the radiator cap) and add coolant until it is 3/4 in. (1.9 cm) below the filler neck; secure the radiator cap back into its original position
High coolant temperature shutdownHigh coolant temperatureRestart the engine and read the coolant temperature to verify a high coolant temperature shutdown; stop the engine immediately if the coolant temperature is 230°F (110°C) or more
High coolant temperature shutdownRadiator shroud and ducting blockageCheck the radiator shroud and ducting for blockage and remove any foreign matter
High coolant temperature shutdownVisible leaksInspect coolant hoses, engine block and water pump for visible leaks
High coolant temperature shutdownSerpentine drive belt for the water pump tensionCheck the tension of the serpentine drive belt for the water pump
High coolant temperature shutdownEngine overheatingIf 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; consult the engine operator's manual for additional information on engine overheating
Overcrank shutdownFuel level in the tankCheck the fuel level in the tank
Overcrank shutdownImproper operation of the fuel pumpCheck for proper operation of the fuel pump
Overcrank shutdownAir filter blockageCheck the air filter for blockage
Overcrank shutdownEngine will not startIf the engine will not start, consult the engine operator's manual for additional information on troubleshooting starting problems
Overspeed or underspeed shutdownFrequency above or below 60.0 Hz (engine speed incorrect)Disconnect all loads and restart the generator; read the frequency (Hz) on the LCD display (with no loads on the generator, the frequency should read 60.0 Hz); if the frequency is above or below 60.0 Hz, the engine speed will have to be adjusted — refer to the engine operator's 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

50
Part #DescriptionQtySystem
60205MOUNT, CONTROL BOX - COMMON1Air filter Amazon eBay FridayParts $63.98
P-175-002Oil Filter1Oil filter Amazon eBay
12547Assembly, cam lock, qrtr turn1Service part / kit Amazon eBay
12632Lug Door Safety Swtiches(2)2Service part / kit Amazon eBay
14203Block, terminal - 10 pos.1Service part / kit Amazon eBay
14204Kit, ground bar1Service part / kit Amazon eBay
18556Regulator, voltage - SE 3501Service part / kit Amazon eBay FridayParts $158.99
18893Handle, lug door1Service part / kit Amazon eBay
18934Guard, potentiometer1Service part / kit Amazon eBay
22018Hinge, continuous - 10.251Service part / kit Amazon eBay
22208Hinge, control panel - 28”1Service part / kit Amazon eBay
23025Light, interior control panel1Service part / kit Amazon eBay
24540Holder, manual1Service part / kit Amazon eBay NAPA $194.24
25077Switch, toggle - 20A VAC1Service part / kit Amazon eBay
26229Kit, voltage adjustment pot w/wires1Service part / kit Amazon eBay
27828Panel, lug box glastic1Service part / kit Amazon eBay
28561WBox, lug enclosure1Service part / kit Amazon eBay
28564WPanel, control left1Service part / kit Amazon eBay
28567Bus, main breaker out3Service part / kit Amazon eBay
28569WPanel, lug box outlet1Service part / kit Amazon eBay
28570WDoor, lug box1Service part / kit Amazon eBay
28583WAngle, top lug box1Service part / kit Amazon eBay
28584Bus, lug extension2Service part / kit Amazon eBay
28653BWeldment, control box1Service part / kit Amazon eBay
29893Bracket, control board wire guide2Service part / kit Amazon eBay
30246WPanel, digital control1Service part / kit Amazon eBay
60020Nut, M8-1.25 sflg lock5Service part / kit Amazon eBay
60062Screw, 10-32 x .750 pan phil, G24Service part / kit Amazon eBay KuduParts $793.00
60068Screw, 10-24X.500 pan phil2Service part / kit Amazon eBay
60145Nut, .375-16 ser flg lock12Service part / kit Amazon eBay
60161Nut, .250-20 hx ser flg2Service part / kit Amazon eBay KuduParts $132.00
60168Screw, .312-18X.750 hx hd1Service part / kit Amazon eBay
60175Screw, .250-20X.500 sflg hex2Service part / kit Amazon eBay
60252Washer, #10 split lock5Service part / kit Amazon eBay
60268Rivet, .188 dia. x .126 to .250 grip, SS4Service part / kit Amazon eBay
60270Nut, 8-32 nylock, G62Service part / kit Amazon eBay
60398Screw, 10-32 x .500 pan phil, SS1Service part / kit Amazon eBay FridayParts $119.95
60452Washer, .313 flat 1.125/1.0 bonded rubber, SS1Service part / kit Amazon eBay
60473Rivet, 3/164Service part / kit Amazon eBay
60478Screw, .375-16X2.000 hx hd10Service part / kit Amazon eBay $88.99
60505Nut, .312-18 U-clip - long type4Service part / kit Amazon eBay
60507Screw, .312-18x1.0 std hex, SS2Service part / kit Amazon eBay $40.99
60525Screw, 8-32X1.500 pan phil2Service part / kit Amazon eBay
60749Plug, hole .500 dia. white2Service part / kit Amazon eBay
61045Nut, 10-32 sflg4Service part / kit Amazon eBay
65309Connector, 21 pin, deutsch1Service part / kit Amazon eBay
65444Transformer, current3Service part / kit Amazon eBay
65890Lug, terminal dual #6-350mcm5Service part / kit Amazon eBay
66191Controller, eng/gen - prog.1Service part / kit Amazon eBay
66455Relay, 12V/70A NC/80A NO w/diode1Service part / kit Amazon eBay NAPA $64.83

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

RatingLoadL/hgal/h
Prime100%48.512.8
Standby100%28.07.4

Available documents

Other sets with this engine