The Caterpillar C7.1 ACERT is a 7.01 L 6-cylinder turbocharged air-to-air-aftercooled engine rated at 1800 rpm, producing up to 129.4 kW. It powers generator sets from Caterpillar, including the D200 GC and XQP150. It holds 16 L (4.2 gal) of oil and 9.5 L (2.5 gal) of coolant.
Also known as: Caterpillar C7.1 ACERT
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| Oil capacity | 16.0 L |
|---|---|
| Coolant capacity | 9.5 L |
| Displacement | 7.01 L |
| Cylinders | 6 |
| Aspiration | Turbocharged Air-to-Air-Aftercooled |
| Rated speed | 1800 rpm |
| Gross power | 129 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | — | |||
| Fuel filter | — | 500 hr | |||
| Oil filter | 4621171 | 500 hr | Amazon eBay $33.99 FridayParts $28.06 | ||
| Battery | Starting System | — | |||
| Belt | N/A | — | |||
| Coolant | Cooling System | 33.0 L (gal) | — | ||
| Oil | Lubricating System | 16.0 L (gal) | — | 500 hr | |
| Spark plug | N/A | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Fuel filter | Change | 500 hr | Oil and fuel filter change intervals: 500 hrs | |
| Oil filter | Change | 500 hr | Oil and fuel filter change intervals: 500 hrs |
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 |
|---|---|---|---|---|---|
| Engine oil | API CJ-4 | 16.0 L | Lubricating system capacity oil 16 L (4.3 gal) | ||
| Fuel | No. 2 diesel | 35 API, LHV 18,390 BTU/lb (emissions measurement condition) | |||
| Fuel | Ultra Low Sulfur Diesel (ULSD) | 992.0 L | Requires Ultra Low Sulfur Diesel (ULSD) fuel |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 1 | Single phase (4 wire) | L1, L3, N | 3 pole breaker | |
| 3 | 3 Phase Star | T1-T12 | Connect to breaker; harness options 60A/100A/150A/250A/400A/600A/800A | |
| 3 | Parallel Star | T1-T12 | ||
| 3 | Series Star (12 wire) | T1-T12 | Exciter 5+ / 6- | |
| 208/120V | 3-phase | 12-lead | Standard switchable voltage output (voltage selection switch, 3-position) | |
| 240/120V | 1-phase | 12-lead | Standard switchable voltage output (voltage selection switch, 3-position) | |
| 480/277V | 3-phase | 12-lead | Standard switchable voltage output (voltage selection switch, 3-position) | |
| 600/349V | 3-phase | 12-lead | Optional 600V generator with 4-position voltage selector switch; all receptacles switched off in 600V position |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The Caterpillar C7.1 ACERT engine has an oil capacity of 16.0 liters.
The Caterpillar C7.1 ACERT has a displacement of 7.01 liters with 6 cylinders.
The Caterpillar C7.1 ACERT powers 2 generator set(s), including Caterpillar D200 GC, Caterpillar XQP150.
The Caterpillar C7.1 ACERT uses oil filter part numbers Caterpillar 4621171, Donaldson P550920, Wix 57325.
The Caterpillar C7.1 ACERT oil change interval is every 500 hours.