Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil | — | 500 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Perkins 1104D-44T is a 4.4 L 4-cylinder turbocharged engine rated at 2200 rpm, producing up to 68.8 kW. It powers generator sets from Perkins, including the 1104D-44T IOPU. It holds 7.9 L (2.1 gal) of oil and 17 L (4.5 gal) of coolant.
Also known as: Perkins 1104D-44T
Part of the Perkins 1104D engine family — 16 variants share parts & fitment.
| Oil capacity | 7.9 L |
|---|---|
| Coolant capacity | 17.0 L |
| Displacement | 4.4 L |
| Cylinders | 4 |
| Aspiration | Turbocharged |
| Rated speed | 2200 rpm |
| Gross power | 68 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil | — | 500 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| 125562 | Air Filter - Secondary | Air filter |
| LLB1114B | Leroy Somer | Alternator |
| LLB1114D | Leroy Somer | Alternator |
| LLB1114F | Leroy Somer | Alternator |
| LLB1114L | Leroy Somer | Alternator |
| LLB1114M | Leroy Somer | Alternator |
| LLB1514J | Leroy Somer | Alternator |
| LLB1514P | Leroy Somer | Alternator |
| LLB3114D | Leroy Somer | Alternator |
| LLB3114H | Leroy Somer | Alternator |
| 125552 | Belt | Belt |
| P532 | Fuel Injection Pump Solenoid Connector (2 Pin Connector) | Connector |
| 8C-3627 | Fuel Filter | Fuel filter |
| P691/J691 | Electronic Unit Injectors for No. 1 and No. 2 Cylinders (4 Pin Connector) | Injector |
| P692/J692 | Electronic Unit Injectors for No. 3 and No. 4 Cylinders (4 Pin Connector) | Injector |
| 250-0486 | Oil Filter | Oil filter |
| 101-4000 | Gasket | Service part / kit |
| 127-0826 | Battery | Service part / kit |
| 134277 | T70, T90 & T120 Super Quiet Generator Maintenance Schedule | Service part / kit |
| 153-5720 | Battery | Service part / kit |
| 250-0488 | Spark Plug | Service part / kit |
| 8C-3600 | Battery | Service part / kit |
| 8C-3601 | Battery | Service part / kit |
| 8C-3620 | Belt | Service part / kit |
| P100 | Coolant Temperature Sensor (2 Pin Connector) | Sensor |
| P103 | Intake Manifold Temperature Sensor (2 Pin Connector) | Sensor |
| P200 | Intake Manifold Pressure Sensor (3 Pin Connector) | Sensor |
| P201 | Engine Oil Pressure Sensor (3 Pin Connector) | Sensor |
| P228 | Fuel Pressure Sensor (3 Pin Connector) | Sensor |
| P401 | Primary Speed/Timing Sensor (2 Pin Connector) | Sensor |
| P402 | Secondary Speed/Timing Sensor (2 Pin Connector) | Sensor |
| 4133L066 | PERKINS 1104D-E44T, 1104D-E44TA, 1106D-E66TA THERMOSTAT | Thermostat |
| P601 | Wastegate Valve (if equipped) (2 Pin Connector) | Wastegate valve |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
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 Perkins 1104D-44T engine has an oil capacity of 7.9 liters.
The Perkins 1104D-44T has a displacement of 4.4 liters with 4 cylinders.
The Perkins 1104D-44T powers 1 generator set(s), including Perkins 1104D-44T IOPU.
The Perkins 1104D-44T oil change interval is every 500 hours.