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Doosan P158LE Generator Set

The Doosan P158LE is a 360 kW (450 kVA) Water-cooled, 4-stroke V-type standby generator set powered by a Doosan P158 LE engine. It is available at 24 V, single-phase and 50 Hz. It holds about 26 L (6.9 gal) of oil and 20 L (5.3 gal) of coolant. Starting uses 8.33 batteries rated 200 CCA at 24 V. The set measures 1484×1389×1161.5 mm (58.4×54.7×45.7 in), weighs about 950 kg (2094 lb) and produces 70 dBA at 7 m. An integrated tank holds 590 L (155.9 gal).

360 kW
Standby
14.618 L
Displacement
26.0 L
Oil capacity
1
Document types

How to read your Doosan serial & model number →

Service parts for the P158LE

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

Fuel system

1 required

Oil system

1 required

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

Specifications

FuelWater-cooled, 4-stroke V-type
Frequency50.0 Hz
Standby power360 kW
Standby kVA450
Prime power322 kW
ControllerDSE7320
Oil capacity26.0 L
Alternator24-45 V-A
Voltage options24 V
PhaseSingle
Power factor0.8
Battery cranking200 CCA
Battery voltage24 V
Battery quantity8.33
Coolant capacity20 L
Dimensions (L×W×H)1484×1389×1161 mm
Dry weight950 kg
Sound level70.0 dBA @ 7 m
Fuel tank590.0 L

Engine

Doosan P158 LE
Oil capacity21.0 L
Coolant capacity20.0 L
Displacement14.618 L
AspirationTurbo charged & intercooled
Rated speed1500 rpm

Maintenance & consumables

for the Doosan P158 LE
ItemSpecCapacityPart #Interval
Air filter—4000 hr
Fuel filterFuel filterEA606001 Amazon eBay
Oil filterOil filterEA603001 Amazon eBay
BatteryElectrolyte specific gravity 1.12~1.28; 24 V - 200 AH—
BeltCorreias novas—2000 hr
CoolantDensity inspected every 500 hours—500 hr
OilSAE 15W40, API CD or CE (initial factory fill API CH-4 break-in oil)—200 hr

Service intervals

28
ItemActionHoursMonthsNotes
Engine oilChange50 hrFirst service — First 50 hrs then per table; halve interval if fuel sulfur > 0.02wt%
Oil filterReplace50 hrFirst service — First 50 hrs then per table
Valve clearanceAdjust50 hrFirst service — After initial 50 hrs, when noise occurs or engine runs abnormally; otherwise if necessary
Fuel injection timingCheck200 hrWhen necessary
Fuel pre-filterClean200 hr
Fuel strainer of fuel feed pumpClean200 hrClean every engine oil replacement; also after every 200 hours
Fuel-water separatorDrain200 hrDrain water in separator; section 2.2.10 states every 1,200 hours
Injection nozzlesCheck200 hrWhen necessary
Lubricating oilChange200 hrFirst service — First oil change at 50 hr operating
Oil filter cartridgeReplace200 hrFirst service — Replace simultaneously with engine oil change; first at 50 hr
Priming pump strainerClean200 hrEvery 200 operating hours
Cylinder head boltsCheck400 hrRetighten by a further 90° (1/4 revolution)
Fuel filterReplace400 hr
Fuel filter elementReplace400 hrSection 2.2.23 states every 400 hours
Water separator filterReplace400 hr
Air cleaner elementClean600 hrRenew every two years or 4,000 hours; clean up to 5 times
Intercooler air finsClean600 hr
Compression pressureCheck800 hrWhen necessary
Fuel tankDrain800 hrRemove sediment from fuel tank
CoolantChange1200 hr12 moBy regular inspection table; P126TI: 1,200 hrs or 6 months
Coolant waterChange2000 hrChange the coolant water
RadiatorClean2000 hr
TurbochargerClean2000 hr
V-belt tensionAdjust2000 hrSection 5.8 states V-belt tension checked after every 2,000 hours
Turbocharger rotor clearancesCheck3000 hrRadial and axial clearance
Air filter elementReplace4000 hr24 moRenew every 2 years or 4,000 hrs (up to 5 cleanings allowed)
Intake/exhaust valve clearanceAdjustFirst service — First at break-in; then when necessary
V-beltReplace12 mo1 Year / 2 Year

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

60
TypeItemValueUnitCondition
ClearanceCamshaft axial end play0.20~0.90mm
ClearanceCrankshaft end play (standard / limit)0.190~0.322 / 0.452mm
ClearanceCylinder head lower face warpage (standard / limit)0.05 or less / 0.2mm
ClearanceCylinder liner inner diameter (standard / limit)φ127.990~φ128.010 / φ128.16mm
ClearanceMain bearing oil gap (standard / limit)0.066~0.132 / 0.166mm
ClearancePiston ring gap 2nd ring (standard / limit)0.40~0.60 / 1.5mm
ClearancePiston ring gap oil ring (standard / limit)0.40~0.70 / 1.5mm
ClearancePiston ring gap top ring (standard / limit)0.35~0.55 / 1.5mm
ClearancePiston to cylinder liner clearance0.233~0.271mm
ClearanceRocker arm bearing clearance (standard / limit)0.015~0.068 / 0.25mm
ClearanceTappet clearance (standard / limit)0.035~0.077 / 0.25mm
ClearanceTurbocharger axial clearance0.2mmwear limit 0.20 mm
ClearanceTurbocharger radial clearance0.65mmlimit of wear 0.57 mm
GapMagnetic speed sensor to ring gear air gapnot smaller than 0.020 in (0.45 mm)mmengine stopped
GapTacho sensor gapabout 1.0mmtolerance limit 27° (gap ± 0.1 mm)
Injection timingFuel injection timing (B.T.D.C static)12degreesstatic BTDC
Injection timingFuel injection timing (B.T.D.C static)14degreesstatic BTDC
Injection timingFuel injection timing (B.T.D.C static)16degreesstatic BTDC
Injection timingInjection timing18° ± 1°degrees BTDC
Injection timingInjection timing19° ± 1°degrees BTDC
Injection timingInjection timing21° ± 1°degrees BTDC
Injection timingInjection timing23° ± 1°degrees BTDC
PressureBypass for entire oil filter valve opening pressure4.5 ± 0.2kg/cm2
PressureBypass for filter element valve opening pressure2.1 ± 0.3kg/cm2
PressureCompression pressure28kg/cm2at 200 rpm, water temperature 20°C
PressureCompression pressure limit24kg/cm2
PressureCylinder compression pressure limit24 or lesskg/cm2
PressureCylinder compression pressure standard25 ~ 28kg/cm2water temperature 20°C, 200 rpm
PressureCylinder compression pressure tolerance limit24kg/cm2
PressureFuel injection pressure1st: 160, 2nd: 220kg/cm2
PressureFuel injection pressure220kg/cm2
PressureFuel injection pressure285kg/cm2
PressureFuel injection pressure (new nozzle holder)300 + 8kg/cm2
PressureFuel injection pressure (used nozzle holder)285 + 8kg/cm2
PressureInjection nozzle opening pressure28MPa
PressureLubricating oil pressureMin. 100kPaidle speed
PressureLubricating oil pressureMin. 250kPagoverned speed
PressureOil pressure at idling0.9~3.0bar
PressureOil pressure at rated speed / full load3.0~6.5bar
PressureOverflow valve operating pressure of injection pump1.3~1.8bar
PressurePressure capMax. 49kPa
PressureRelief valve opening pressure8.5~10kg/cm2
ResistanceCold resistance of thermistor sensors100 to 250Ohms per sensorcold
ResistanceExciter armature resistance at 20°C0.037Ohms
ResistanceRotor resistance at 20°C0.343Ohms
ResistanceStator L/N resistance at 20°C0.0085Ohms
SpeedEngine speed1500rpm
SpeedEngine speed1800rpm
SpeedSpeed control unit governor speed range1K~7.5KHzcontinuous
TemperatureCoolant temperature during operation80~95°C
TemperatureOil temperatureless than 110°C
TemperatureThermostat full open temp85°C
TemperatureThermostat open wide at85°C
TemperatureThermostat opening temp71°C
TemperatureThermostat opens at71°C
TemperatureWater temperature before start of full load40°C
TemperatureWater temperature max for standby and prime103°C
TorqueAlternator bracket (M14)12kg.m
TorqueBearing cap side bolt (M12 x 1.5)8kg.m
TorqueCam shaft timer (M10)9kg.m

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
CoolantSoft water + antifreeze 40% + rust preventive additive (DCA4) 3~5%20.0 literEngine only: P158LE 20 L, P180LE 21 L, P222LE 23 L. Antifreeze % by ambient: over -10°C 15%, -10°C 20%, -15°C 27%, -20°C 33%, -25°C 40%, -30°C 44%, -40°C 50%
Coolant40~50% antifreeze mixtureabove -40°CAntifreeze concentration table by ambient temperature (above -10°C = 15%; -40°C = 50%); add 3~5% additives (DCA4)
Engine oilSAE 15W40API CD or CE (initial factory fill high quality break-in oil for API Service CH-4)21.0 literOil pan capacity P158LE/PU158TI 21 L; P180LE/PU180TI 35 L; P222LE/PU222TI 40 L (max/min 21/17, 35/28, 40/33)
Engine oilSAE 15W40 or 10W40API Service CH-4P126TI; initial factory filling is high quality break-in oil
FuelASTM No.1-D / No.2-D / DIN 51601Cetane number min 45; sulfur max 0.5 wt%Cloud point should be 12°C (10°F) below the lowest expected fuel temperature; water & sediment max 0.05%
FuelDiesel fuel oilLow Sulfur Diesel; sulfur content max. 0.05 wt% (halve oil change interval if > 0.02 wt%)Doosan recommends installation of a fuel water separator

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

12
Adjusting injection timing adjustment
  1. Loosen fixing bolts (M8) of injection pump driving gear.
  2. Turn crank pulley clockwise until V-groove of flywheel housing sight hole aligns with injection timing degree.
  3. Turn flange until injection pump pointer mark matches mark (FB) on drive gear flange.
  4. Tighten bolt M8 to specified torque being careful not to move drive gear.
  5. Recheck the injection timing start point of fuel delivery.
Adjusting valve clearance (DP158/DP180/DP222) adjustment

⚠ Only adjust the valve clearance when the engine is cold.

Tools: Feeler gauge, Ring spanner

  1. Rotate crankshaft so #1 cylinder is at compression TDC.
  2. Loosen lock nut of #1 cylinder rocker arm.
  3. Push feeler gauge between rocker arm and valve stem.
  4. Adjust clearance screw and tighten lock nut.
  5. Rotate crankshaft; when a cylinder reaches compression TDC adjust its valve clearance.
  6. When a cylinder is at valve overlap, adjust the cylinder at compression TDC.
Checking and adjusting injection timing adjustment
  1. Remove plug screw in case cover on injection pump drive gear.
  2. Turn crank pulley so mark on injection pump pointer coincides with matching mark (FB) on drive gear flange.
  3. Check V-type edge of flywheel housing sight hole coincides with injection timing degree on flywheel.
  4. To adjust, loosen fixing bolts (M8) of injection pump driving gear.
  5. Turn crank pulley clockwise until V-groove of sight hole aligns with injection timing degree.
  6. Coincide mark on injection pump pointer with FB mark by turning flange in oblong holes.
  7. Tighten bolt (M8) to 2.2 kg.m and recheck fuel delivery start point.
Valve clearance adjust procedure adjustment

Tools: Feeler gauge (60.99901-0027), Spanner, Screwdriver

  1. Turn crankshaft to bring #1 cylinder piston to compression top dead center.
  2. Loosen lock nuts of rocker arm adjusting screws.
  3. Push feeler gauge of specified value between rocker arm and valve stem.
  4. Adjust clearance with adjusting screw and tighten with lock nut.
Cylinder compression pressure check diagnostic

Tools: Compression pressure gauge, Gauge adapter

  1. Warm up the engine then stop it and remove nozzle assemblies.
  2. Install special tool (gauge adapter) in nozzle holder hole.
  3. Connect the compression pressure gauge to the adapter.
  4. Cut off fuel circulation, rotate the starter, measure each cylinder pressure.
Installation of injector installation

⚠ Injection lines are designed for high operating pressures and should be handled with particular care.

⚠ Do not bend pipes to permanent deformation.

  1. Clean seat in cylinder head.
  2. Insert nozzle holder with new seal ring.
  3. Tighten union nut with 120 N.m.
  4. Install injection lines free of constraint.
  5. Install leak fuel lines and screw delivery pipe at nozzle holder and injection pump.
Air removal of fuel system maintenance
  1. Loosen the air removing screws of the cartridge filter.
  2. Operate the manual pump of the fuel supply pump until bubbles disappear.
  3. Suction chamber is continuously bled via relief valve during operation.
Bleeding the fuel system maintenance

⚠ Fuel is highly inflammable; no naked flames or sparks.

  1. Loosen the air bleeding plug on the fuel filter.
  2. Operate the priming pump by hand to bleed air.
  3. Operate the priming pump until air is discharged completely.
  4. Close the plug screws of the filter and the pump.
Charging the coolant maintenance

⚠ Do not mix antifreezes from different manufacturers.

⚠ Discard exchanged coolant according to regulations.

  1. Ensure that the engine is cool.
  2. Open the radiator cap.
  3. Pour the coolant in slowly.
  4. Be sure that the air is gone from the cooling system.
  5. Check the coolant level when warmed up and replenish if necessary.
Cleaning filter elements (air cleaner) maintenance

⚠ Never use steam sprayers, petrol, alkalis or hot liquids to clean the filter elements.

Tools: Air gun, Goggles

  1. Clean by compressed air using an air gun with a 90° bent nozzle extension.
  2. Blow out element from inside at maximum 500 kPa (5 bar) until no more dust comes out.
  3. Or wash: preclean with compressed air, soak in lukewarm solvent 10 minutes, agitate 5 minutes.
  4. Rinse thoroughly in clean water, shake out and dry at room temperature.
  5. Check cartridge for damage before reinstalling.
Cleaning the air filter element maintenance

⚠ Always wear protective goggles.

⚠ Never use steam spray, gasoline, alkali or hot cleansing solution.

Tools: Air gun, Protective goggles

  1. By compressed air: use air gun at 90° from inside, blow from inside out.
  2. Do not exceed 5 bars.
  3. By washing: preclean with compressed air, soak in warm solvent 10 minutes, agitate 5 minutes.
  4. Rinse with clean water, dry at room temperature fully before reassembling.
Coolant draining maintenance

⚠ When removing the pressure filler cap while hot, cover with a rag and turn slowly.

⚠ Never open the radiator cap while the engine is overheated.

  1. Remove the pressure cap.
  2. Open the drain valve located at the bottom of the radiator to drain coolant.
  3. Loosen the coolant drain plug of the cylinder block.
  4. Drain cooling water in the oil cooler.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

VoltagePhaseConnectionLeadsNotes
190 - 2083winding 612 wires (T1 to T12)Factory connection 12 wires - 50 Hz - LSA 46.2/47.2
190 - 2083winding 812 wires (T1 to T12)Factory connection 12 wires - 60 Hz
190 - 2403winding 612 wires (T1 to T12)Factory connection 12 wires - 60 Hz
2203winding 712 wires (T1 to T12)Factory connection 12 wires - 50 Hz
220 - 2401 (L2/L3 single phase)winding 612 wiresVoltage LM = 1/2 voltage LL
220 - 2401 (L2/L3 single phase)winding 712 wiresVoltage LM = 1/2 voltage LL - 50 Hz 240 - 254
380 - 4153winding 612 wires (T1 to T12)Factory connection 12 wires - 50 Hz
380 - 4153winding 6S6 wiresFactory connection 6 wires - 50 Hz (not possible with R250 on LSA 47.2)
380 - 4163winding 812 wires (T1 to T12)Factory connection 12 wires - 60 Hz
380 - 4803winding 612 wires (T1 to T12)Factory connection 12 wires - 60 Hz
380 - 4803winding 6S6 wiresFactory connection 6 wires - 60 Hz
4403winding 712 wires (T1 to T12)Factory connection 12 wires - 50 Hz
5003winding 912 wires (T1 to T12)50 Hz - winding 9: R 450 voltage detection + transformer
6003winding 912 wires (T1 to T12)60 Hz - winding 9: R 450 voltage detection + transformer
6003winding 9S6 wires60 Hz - winding 9: R 450 voltage detection + transformer

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the power rating of the Doosan P158LE?

The Doosan P158LE is rated 360 kW standby (450.0 kVA).

What engine is in the Doosan P158LE?

The Doosan P158LE is powered by the Doosan P158 LE engine.

What kind of fuel does the Doosan P158LE run on?

The Doosan P158LE runs on Water-cooled, 4-stroke V-type.

What's the oil capacity on a Doosan P158LE?

The Doosan P158 LE engine in the Doosan P158LE has an oil capacity of 21.0 liters.

How much coolant does the Doosan P158LE hold?

The Doosan P158LE cooling system holds 20 liters (5.3 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the continuous rating of the Doosan P158LE?

The Doosan P158LE is rated 322 kW prime (438 kVA), against 360 kW standby.

How loud is the Doosan P158LE?

The Doosan P158LE is rated at 70.0 dBA at 7 m, per the manufacturer specification sheet.

How much does the Doosan P158LE weigh?

The Doosan P158LE has a dry weight of 950 kg (2094 lb).

What size fuel tank does the Doosan P158LE have?

The Doosan P158LE has a 590 liter (156 US gallon) fuel tank.

What voltage does the Doosan P158LE produce?

The Doosan P158LE is offered in 24 V, Single-phase.

What size battery does the Doosan P158LE need?

The Doosan P158LE uses 8.33 batteryies, 24 V each, 200 CCA, per the manufacturer specification sheet.

Which alternator is fitted to the Doosan P158LE?

The Doosan P158LE uses a 24-45 V-A alternator.

Which oil filter part number does the Doosan P158LE take?

The Doosan P158LE uses oil filter part number EA603001.

Which fuel filter part number does the Doosan P158LE take?

The Doosan P158LE uses fuel filter part number EA606001.

Parts

35
Part #DescriptionQtySystem
0A9912Marathon MagnaMax Alternator Manual1Alternator Amazon eBay
65.10101-7051Nozzle holder assembly (BOSCH 0 432 131 667)Injector FridayParts $67.70
65.10101-7053Nozzle holder assembly (BOSCH 0 432 131 669)Injector FridayParts $96.90
65.10102-6047Nozzle (BOSCH 0 433 171 174), 4 x φ0.40Injector buy
65.10102-6070Nozzle (BOSCH 0 433 171 169), 5 x φ0.418Injector buy
65.11101-7301Injection pump (BOSCH 0 402 618 813), model PE8P120A500/4LS7935Fuel pump buy
65.11101-7302Injection pump (BOSCH 0 402 619 802), model PE10P120A500LS7936Fuel pump buy
65.11101-7303Injection pump (BOSCH 0 402 610 807), model PE12P120A500LS7937Fuel pump buy
65.11101-7319Injection pump (BOSCH 0 401 890 979E), model PE12P120A520LS7972Fuel pump buy
65.11101-7680Injection pump (BOSCH A 401 881 102), model PE8P120A520/4LS7947Fuel pump buy
65.11101-7681Injection pump (BOSCH A 401 890 895), model PE10P120A520LS7948Fuel pump buy
EA601001Cooling fan1Cooling Amazon eBay
EA602001Air pipe (Air cleaner to turbocharger)1Air pipe Amazon eBay
EA603001Oil filter1Oil filter Amazon eBay
EA604001Cooling water outlet1Cooling water outlet Amazon eBay
EA605001Air pipe (Air cleaner to turbocharger)1Air pipe Amazon eBay
EA606001Fuel filter1Fuel filter Amazon eBay
EA607001Air pipe (Turbocharger to inter cooler)1Air pipe Amazon eBay
EA608001Idle pulley1Idle pulley Amazon eBay
EA609001Engine mounting bracket1Engine mounting bracket Amazon eBay
EA610001Water pump1Water pump Amazon eBay
0A3303Generac D Control Panel Manual1Service part / kit Amazon eBay
0A7605Generac E Control Panel Manual1Service part / kit Amazon eBay
0A9913Marathon DVR2000 Voltage Regulator Manual1Service part / kit Amazon eBay
0C9771Generac Daewoo Generator Set Operation & Maintenance Manual1Service part / kit Amazon eBay
0D1074Daewoo Engine Service Manual - 18.0 & 22.0 Liter1Service part / kit Amazon eBay
0D1075Daewoo Engine Parts Manual - 22.0 Liter1Service part / kit Amazon eBay
0D1077Daewoo Engine Operation Manual - 18.0 & 22.0 Liter1Service part / kit Amazon eBay
0E4342Daewoo Engine Parts Manual - 18.0 Liter1Service part / kit Amazon eBay
65.10301-6053AInjection pipeService part / kit buy
65.10301-6054AInjection pipeService part / kit buy
65.10301-6055BInjection pipeService part / kit buy
65.10301-6056BInjection pipeService part / kit buy
65.10301-6113Injection pipeService part / kit buy
65.10301-6114AInjection pipeService part / kit buy

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
50% prp50%40.610.73
75% prp75%60.315.93
Prime82.721.85
Standby95.325.18

Available documents

Owner's manual — 46689184-A-EN-12-15-OM-G300-G635XW (Doosan)Service manual — Motor Diesel FL1 (Doosan)Service manual — P158LE-P180LE-P222LE-Doosan-engine-OM (Doosan)Service manual — doosan-p158le-p180le-p222le (Doosan)

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.