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Caterpillar G3520E Engine

The Caterpillar G3520E is a 86 L 20-cylinder turbocharged separate circuit aftercooled engine rated at 1500 rpm. It powers generator sets from Caterpillar, including the G3520. It holds 541 L (142.9 gal) of oil.

Also known as: G3520E, Caterpillar G3520E

86.0 L
Displacement
20
Cylinders
1500 rpm
Rated speed
541.0 L
Oil capacity

Engine specifications

Oil capacity541.0 L
Displacement86.0 L
Cylinders20
AspirationTurbocharged Separate Circuit Aftercooled
Rated speed1500 rpm

Service specifications

13
TypeItemValueUnitCondition
OtherGross Input Torque (TH55-E70)12 667N•m (9350 lb-ft)
OtherGross Input Torque (TH55-E90)12 677N•m (9350 lb-ft)
OtherRating condition (diesel 7 L and higher)99 kPa (29.31 in Hg) dry barometer, 25°C (77°F)SAE J1995 inlet air standard
OtherRating condition (diesel up to 6.6 L)100 kPa (29.5 in Hg) total barometric pressure, 1 kPa (.295 in Hg) vapor pressure, 25°C (77°F)ISO/TR14396 inlet air standard
OtherRating condition (gas)100 kPa (29.61 in Hg) and 25°C (77°F)SAE J1349 standard
OtherStall Torque Ratio (TH55-E70)2.23
OtherStall Torque Ratio (TH55-E90)2.23
PressureExplosion relief valve opening pressure1.6 psi (11 kPa)psi (kPa)per valve
PressureWS255 pump plunger load238,000lb (107,960 kg)
PressureWS273XD pump plunger load275,000lb (124 738 kg)
PressureWS305XD pump plunger load250,000lb (113 398 kg)
SpeedMaximum Input Speed (TH55-E70/TH55-E90 transmissions)1970rpm
SpeedRated Input Speed (TH55-E70/TH55-E90 transmissions)1900rpm

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
CoolantCat DEACDiesel; 3,000 Service Hours or Three Years; annual S·O·SSM Level 2 coolant sampling and analysis
CoolantCat ELCDiesel; 12,000 Service Hours or Six Years; add Cat ELC Extender at 6,000 service hours or one half of service life; annual S·O·SSM Level 2 coolant sampling and analysis
CoolantCat NGECNatural Gas; 16,000 Service Hours or Three Years; use interval that occurs first
Engine oilEPA 2D 89.330-96 (fuel reference, Diesel <6.6 L, density 0,845-0,850 kg/L a 15 °C)Reference condition only, not a lubricant recommendation
Engine oilCat NGEONatural Gas
Engine oillow sulfated ash oilRequired for U.S. EPA Tier 4 Final, EU Stage IV engines.
Engine oilCat Arctic DEO SYN SAE 0W-30-40°C to 30°CEngine Crankcase; Industrial Engines
Engine oilCat DEO SYN SAE 5W-40-30°C to 50°CEngine Crankcase; Industrial Engines
Engine oilCat DEO SAE 10W-30-18°C to 40°CEngine Crankcase; Industrial Engines
Engine oilCat DEO SAE 15W-40-9°C to 50°CEngine Crankcase; Industrial Engines
FuelUltra Low Sulfur Diesel (ULSD)Contains less than or equal to 15 parts per million sulfur (mg/kg); required for U.S. EPA Tier 4 Final, EU Stage IV engines. B20 biodiesel capability available.
Fuel35° API gravity, LHV 42 780 kJ/kg (18,390 btu/lb)SAE J1995Diesel engines 7 liter and higher; used at 29°C (84.2°F) with density 838.9 g/L
FuelEPA 2D 89.330-96EPA 2D 89.330-96Diesel engines up to 6.6 liter; density 0.845-0.850 kg/L @ 15°C (59°F); fuel inlet temperature 40°C (104°F)
Fueldry natural gas, LHV 35.54 MJ/Nm3 (905 btu/ft3)Gas ratings based on SAE J1349 standard conditions of 100 kPa (29.61 in Hg) and 25°C (77°F)
GreaseCat Generator Set GreasePart Number 108-8611

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

Aftermarket parts that fit this engine

9

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Common questions

What is the oil capacity of the Caterpillar G3520E?

The Caterpillar G3520E engine has an oil capacity of 541.0 liters.

What is the displacement of the Caterpillar G3520E?

The Caterpillar G3520E has a displacement of 86.0 liters with 20 cylinders.

Which generators use the Caterpillar G3520E engine?

The Caterpillar G3520E powers 1 generator set(s), including Caterpillar G3520.