The Caterpillar 8CM43 is a 88.6 L 8-cylinder turbocharged and after-cooled engine, producing up to 9000 kW. It powers generator sets from Caterpillar.
Also known as: Caterpillar 8CM43
Part of the Caterpillar CM43 engine family — 19 variants share parts & fitment.
| Displacement | 88.6 L |
|---|---|
| Cylinders | 8 |
| Aspiration | Turbocharged and after-cooled |
| Gross power | 9000 kW |
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Gross Input Torque (TH55-E70) | 12 667 | N•m (9350 lb-ft) | |
| Other | Gross Input Torque (TH55-E90) | 12 677 | N•m (9350 lb-ft) | |
| Other | Stall Torque Ratio (TH55-E70) | 2.23 | ||
| Other | Stall Torque Ratio (TH55-E90) | 2.23 | ||
| Pressure | WS255 pump plunger load | 238,000 | lb (107,960 kg) | |
| Pressure | WS273XD pump plunger load | 275,000 | lb (124 738 kg) | |
| Pressure | WS305XD pump plunger load | 250,000 | lb (113 398 kg) | |
| Speed | Maximum Input Speed (TH55-E70/TH55-E90 transmissions) | 1970 | rpm | |
| Speed | Rated Input Speed (TH55-E70/TH55-E90 transmissions) | 1900 | rpm |
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 |
|---|---|---|
| 16CM43-0001 | Cylinder Head Assembly | Service part / kit |
| 16CM43-0002 | Piston Assembly | Service part / kit |
| 16CM43-0003 | Connecting Rod Assembly | Service part / kit |
| 16CM43-0004 | Crankshaft Assembly | Service part / kit |
| 16CM43-0005 | Valve Train Assembly | Service part / kit |
| HT5/HT6 | Settling tank | Service part / kit |
| LEXE0583-00 | January 2013 | Service part / kit |
| HP1/HP2 | Fuel pressure pump | Pump |
| HP3/HP4 | Fuel oil circulating pump | Pump |
| HP5/HP6 | Heavy fuel transfer pump (separator) | Pump |
| HS1/HS2 | Heavy fuel separator | Separator |
| 16CM43-0006 | Turbocharger Assembly | Turbocharger |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Caterpillar 8CM43 has a displacement of 88.6 liters with 8 cylinders.
The Caterpillar 8CM43 powers 1 generator set(s), including Caterpillar 8CM43.