The Caterpillar G3520C SCAC is a 86 L 20-cylinder separate circuit aftercooled engine rated at 1500 rpm, producing up to 1966 kW. It powers generator sets from Caterpillar, including the G3520 and G3520C LE Gas Generator Set. It holds 541 L (142.9 gal) of oil.
Also known as: CAT G3520C SCAC
Part of the Caterpillar G3520C engine family — 2 variants share parts & fitment.
| Oil capacity | 541.0 L |
|---|---|
| Displacement | 86.0 L |
| Cylinders | 20 |
| Aspiration | Separate Circuit Aftercooled |
| Rated speed | 1500 rpm |
| Gross power | 1966 kW |
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Rating condition (diesel 7 L and higher) | 99 kPa (29.31 in Hg) dry barometer, 25°C (77°F) | SAE J1995 inlet air standard | |
| Other | Rating 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 | |
| Other | Rating condition (gas) | 100 kPa (29.61 in Hg) and 25°C (77°F) | SAE J1349 standard | |
| Pressure | Explosion relief valve opening pressure | 1.6 psi (11 kPa) | psi (kPa) | per valve |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | Cat DEAC | Diesel; 3,000 Service Hours or Three Years; annual S·O·SSM Level 2 coolant sampling and analysis | |||
| Coolant | Cat ELC | Diesel; 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 | |||
| Coolant | Cat NGEC | Natural Gas; 16,000 Service Hours or Three Years; use interval that occurs first | |||
| Engine oil | Cat NGEO | Natural Gas | |||
| Engine oil | low sulfated ash oil | Required for U.S. EPA Tier 4 Final, EU Stage IV engines. | |||
| Engine oil | Cat Arctic DEO SYN SAE 0W-30 | -40°C to 30°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | Cat DEO SYN SAE 5W-40 | -30°C to 50°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | Cat DEO SAE 10W-30 | -18°C to 40°C | Engine Crankcase; Industrial Engines | ||
| Engine oil | Cat DEO SAE 15W-40 | -9°C to 50°C | Engine Crankcase; Industrial Engines | ||
| Fuel | Ultra 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. | |||
| Grease | Cat Generator Set Grease | Part 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.
| Part # | Description | Category |
|---|---|---|
| LEXE0561-00 | November 2012 | other_service |
| LEXE4621 | LANDFILL powerprofile ©2004 Caterpillar | other_service |
| M-5303130 | Caterpillar® G3520 Modular Style Single Head Replacement Set | single_head_replacement_set |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Caterpillar G3520C SCAC engine has an oil capacity of 541.0 liters.
The Caterpillar G3520C SCAC has a displacement of 86.0 liters with 20 cylinders.
The Caterpillar G3520C SCAC powers 2 generator set(s), including Caterpillar G3520, Caterpillar G3520C LE Gas Generator Set.