HomeKatolightKatolight D415FJJ4

Katolight D415FJJ4 Generator Set

The Katolight D415FJJ4 is a 415 kW (518.75 kVA) standby generator set powered by a Katolight 6125HF070 engine. It is available at 277/480 V, 120/208 V, 120/240 V and 347/600 V, 3-phase, 60 Hz and rated 1248 A. It holds about 42 L (11.1 gal) of oil and 104.5 L (27.6 gal) of coolant. The set produces 128 dBA at 7 m. The same 6125HF070 engine also powers generator sets from John Deere.

415 kW
Standby
7.66 L
Displacement
42.0 L
Oil capacity
2
Document types

Service parts for the D415FJJ4

Grouped by system, with how many of each the parts manual calls for.

Fuel system

1 required
33358Fuel filter$13.97PartsGeek

Oil system

1 required
51607Oil filter$10.97PartsGeek

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Frequency60.0 Hz
Standby power415 kW
Standby kVA518
Prime power345 kW
ControllerKASSEC-24 VDC
Oil capacity42.0 L
Voltage options277/480 V, 120/208 V, 120/240 V, 347/600 V
Phase3
Rated current1248 A
Power factor0.8
Coolant capacity104.5 L
Sound level128.0 dBA @ 7 m

Engine

Katolight 6125HF070
Oil capacity42.0 L
Coolant capacity16.2 L
Displacement7.66 L
AspirationTurbocharged ~ Air to Air Intercooled
Rated speed1800 rpm

Maintenance & consumables

for the Katolight 6125HF070
ItemSpecCapacityPart #Interval
Air filter500 hr
Fuel filter33358 Amazon eBay $17.79 PartsGeek $13.97
Oil filter51607 Amazon eBay $18.02 PartsGeek $10.97
Battery
Belt500 hr
Coolant2000 hr
Coolant filter
Oil100 hr
Spark plug

Common questions

What is the power rating of the Katolight D415FJJ4?

The Katolight D415FJJ4 is rated 415 kW standby (518.75 kVA).

Which engine powers the Katolight D415FJJ4?

The Katolight D415FJJ4 is powered by the Katolight 6125HF070 engine.

What's the oil capacity on a Katolight D415FJJ4?

The Katolight 6125HF070 engine in the Katolight D415FJJ4 has an oil capacity of 42.0 liters.

What oil filter does the Katolight D415FJJ4 use?

The Katolight D415FJJ4 uses oil filter part number 51607.

What fuel filter does the Katolight D415FJJ4 use?

The Katolight D415FJJ4 uses fuel filter part number 33358.

Troubleshooting

6

Symptoms & remedies

SymptomCauseRemedy
Low Oil PressureLow crankcase oil level, Clogged oil cooler or filter, Excessive oil temperature, Defective oil pump, Incorrect oil, Oil pressure regulating valve failure, Broken piston spray jet, Clogged oil pump screen or cracked pick-up tube, Excessive main or connecting rod bearing clearanceFill crankcase to proper oil level., Remove and inspect oil cooler. See your John Deere engine distributor or servicing dealer., Remove and inspect oil cooler. See your John Deere engine distributor or servicing dealer., Remove and inspect oil pump. See your John Deere engine distributor or servicing dealer., Drain crankcase and refill with correct oil., Remove and inspect oil pressure regulating valve. See your John Deere engine distributor or servicing dealer., Replace piston spray jet. See your John Deere engine distributor or servicing dealer., Remove oil pan and clean screen/replace pick-up tube., Determine bearing clearance. See your John Deere engine distributor or servicing dealer.
High Oil PressureImproper oil classification, Oil pressure regulating valve bushing loose (wanders), Improperly operating regulating valve, Plugged piston spray jet, Stuck or damaged filter bypass valve, Stuck or damaged oil cooler bypass valveDrain crankcase and refill with correct oil., Remove and inspect oil pressure regulating valve. See your John Deere engine distributor or servicing dealer., Remove and inspect oil pressure regulating valve. See your John Deere engine distributor or servicing dealer., Replace piston spray jet. See your John Deere engine distributor or servicing dealer., Remove and inspect filter bypass valve. See your John Deere engine distributor or servicing dealer., Remove and inspect oil cooler bypass valve. See your John Deere engine distributor or servicing dealer.
Excessive Oil ConsumptionToo low viscosity crankcase oil, Crankcase oil level too high, External oil leak(s), Oil control rings worn or broken, Scored cylinder liners or pistons, Worn valve guides or stems, Excessive oil pressure, Piston ring grooves excessively worn, Piston rings sticking in ring grooves insufficient piston ring tension, Piston ring gaps not staggered, Front and/or rear crankshaft oil seal faultyDrain crankcase and refill with correct viscosity oil., Drain oil until oil level is correct., Determine source of oil leak(s) and repair as required., Replace piston rings. See your John Deere engine distributor or servicing dealer., Remove and inspect cylinders and liners; replace as required. See your John Deere engine distributor or servicing dealer., Inspect and measure valve stems and valve guides; repair as required. See your John Deere engine distributor or servicing dealer., See High Oil Pressure above., Remove and inspect pistons. See your John Deere engine distributor or servicing dealer., Remove and inspect pistons. See your John Deere engine distributor or servicing dealer., Remove and inspect pistons. See your John Deere engine distributor or servicing dealer., Remove and inspect pistons. See your John Deere engine distributor or servicing dealer., Replace oil seals. See your John Deere engine distributor or servicing dealer.
Fuel in OilSee LOW PRESSURE FUEL SYSTEM TROUBLESHOOTING later in this section.
Coolant in OilSee COOLING SYSTEM TROUBLESHOOTING later in this section.
Engine OverheatsLack of coolant in cooling system, Radiator core and/or side screens dirty, Engine overloaded, Too low crankcase oil level, Loose or defective fan belt, Defective thermostat(s), Damaged cylinder head gasket, Defective coolant pump, Defective radiator capFill cooling system to proper level., Clean radiator as required., Reduce engine load., Fill crankcase to proper oil level., Replace fan belt as required. Check belt tensioner. (See Lubrication and Maintenance 500 Hour/12 Month section.), Test thermostat opening temperature; replace thermostats as required. (See Service as Required section.), Replace cylinder head gasket. See your John Deere engine distributor or servicing dealer., Replace coolant pump. See your John Deere engine distributor or servicing dealer., Replace radiator cap as required.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Katolight D415FJJ4 troubleshooting guide (30 entries) →

Parts

40
Part #DescriptionQtySystem
RG5419High-Pressure Fuel Pump Serial NumberFuel pump Amazon eBay
RG8718ACoolant Pump Weep HolePump Amazon eBay
RG8742Belt Tensioner Spring Tension and Belt WearBelt Amazon eBay
RG9918A—High-Low Speed Select Rocker Switch1Speed select rocker switch Amazon eBay
100302RG,RG34710,7600 -19-30JUN97-3/4Service part / kit Amazon eBay
1400302RG,RG34710,7606 -19-30JUN97-1/1Service part / kit Amazon eBay
160302RG,RG34710,7601 -19-06SEP02-1/2Service part / kit Amazon eBay
4100302RG,RG34710,7600 -19-30JUN97-2/4Service part / kit Amazon eBay
55-13RG,RG34710,7600 -19-30JUN97-2/4Service part / kit Amazon eBay
55-14RG,RG34710,7600 -19-30JUN97-3/4Service part / kit Amazon eBay
55-16RG,RG34710,7601 -19-06SEP02-1/2Service part / kit Amazon eBay
55-18RG,RG34710,7602 -19-30JUN97-1/3Service part / kit Amazon eBay
55-20RG,RG34710,7602 -19-30JUN97-3/3Service part / kit Amazon eBay
55-22RG,RG34710,7606 -19-30JUN97-1/1Service part / kit Amazon eBay
55-23Diagnostic Trouble Code Display and Touch SwitchesService part / kit Amazon eBay
JMP11TOQ2Yields one shot 61 6 OVERSPEED 3to2 Yields 5 cycle (el7 SWITCH tat[c7 | ca {cg fer cra cry] Te Te faa] oT dT1 d]1 [2 73 [6 19 [9 | 22] 24]Service part / kit Amazon eBay
OUODN06Rear PTO Serial Number PlateService part / kit Amazon eBay
QUOD002Filling Fuel TankService part / kit Amazon eBay
RG10242Crankcase Ventilation AssemblyService part / kit Amazon eBay
RG34710Safety Alert SymbolService part / kit Amazon eBay
RG6241Radiator Coolant CheckService part / kit Amazon eBay
RG6557DO5104ST TesterService part / kit Amazon eBay
RG8724Timing Gear Cover Fill PortService part / kit Amazon eBay
RG8727Upper Tensioner Spring TensionService part / kit Amazon eBay
RG8728Lower Tensioner Spring TensionService part / kit Amazon eBay
RG8751Oil Pan Adapter Fill PortService part / kit Amazon eBay
S203Handle Batteries SafelyService part / kit Amazon eBay FridayParts $24.89
T8953Avoid Flammable SprayService part / kit Amazon eBay
TS1356Handle Starting Fluid SafelyService part / kit Amazon eBay
TS187Understand Signal WordsService part / kit Amazon eBay
TS201Replace Safety SignsService part / kit Amazon eBay
TS202Handle Fuel Safely—Avoid FiresService part / kit Amazon eBay
TS204Prevent Battery Explosions0Service part / kit Amazon eBay
TS206Wear Protective Clothing0Service part / kit Amazon eBay $1600.83
TS207Protect Against NoiseService part / kit Amazon eBay
TS220Remove Paint Before Welding or Heating1Service part / kit Amazon eBay $13.89
TS226Lifting EquipmentService part / kit Amazon eBay
TS281Service Cooling System Safely0Service part / kit Amazon eBay
TS291Prepare for EmergenciesService part / kit Amazon eBay
X9811Safety Equipment0Service 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

RatingLoadL/hgal/h
Prime76.8420.3
Prime50%42.411.2
Prime75%21.25.6
Standby116.9730.9

Available documents

Spec sheet — 43462001 katolight d415frj4 415 kw spec sheets (Katolight)Spec sheet — D415FRJ4 (Katolight)Service manual — 43462001 katolight d415frj4 415 kw operators manual (Katolight)
Full service, cheapest listings

Priced items from this model's own parts manual.

Fuel filter 33358$13.97
Oil filter 51607$10.97
2 priced items$24.94