The Perkins 1104D-E44TAG2 is a 4.4 L 6-cylinder turbocharged air to air charge cooled engine rated at 2350 rpm, producing up to 171.9 kW. It powers generator sets from FG Wilson and Perkins, including the MJB 225 MA4 and 1104D-E44TAG2 ElectropaK. It holds 8 L (2.1 gal) of oil and 17 L (4.5 gal) of coolant.
Also known as: Perkins 1104D-E44TAG2
Part of the Perkins 1104D engine family — 16 variants share parts & fitment.
The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.
Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.
| Oil capacity | 8.0 L |
|---|---|
| Coolant capacity | 17.0 L |
| Displacement | 4.4 L |
| Cylinders | 6 |
| Aspiration | Turbocharged Air To Air Charge Cooled |
| Rated speed | 2350 rpm |
| Gross power | 171 kW |
Shared across brands: FG Wilson, Perkins
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | 901103 | Amazon $41.50 eBay $39.01 KuduParts $25.00 | |||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | 17.0 litres | — | |||
| Oil | multi-grade oil conforming to API-CH4/CI4 | 8.0 litres | — | ||
| Spark plug | — |
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 |
| 8C-3601 | Air Filter | 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 |
| SJ24309 | ALTERNATOR (90A) | alternator |
| 01903596 | Battery or Battery Cable - Disconnect | battery |
| 127-0826 | Battery | battery |
| 153-5720 | Battery | battery |
| 125552 | Belt | belt |
| 8C-3620 | Belt | belt |
| L111601 | FAN DRIVE BELT (90 HP, With AC) | belt |
| L114488 | FAN DRIVE BELT (90 HP, Without AC) | belt |
| P532 | Fuel Injection Pump Solenoid Connector (2 Pin Connector) | connector |
| 8C-3600 | Coolant Filter | coolant_filter |
| g01264578 | Coolant flow | coolant_flow |
| i02234878 | Electrical System | electrical_system |
| i02403276 | Electrical System | electrical_system |
| i02321383 | Engine Electronics | engine_electronics |
| i01958113 | Engine Specification | engine_specification |
| g01249050 | Secondary Fuel Filter | fuel filter |
| g01266023 | Fuel Injection Pump | fuel injection pump |
| g01201611 | Fuel Injectors | fuel injectors |
| g01266024 | Fuel Manifold | fuel manifold |
| g01265623 | Fuel Priming Pump | fuel priming pump |
| g01265683 | Fuel Transfer Pump | fuel transfer pump |
| 26560201 | PERKINS 1104 / CATERPILLAR FUEL FILTER | fuel_filter |
| 8C-3627 | Fuel Filter | fuel_filter |
| N378886 | FUEL WATER SEPARATOR FILTER (If equipped) - N378886 | fuel_filter |
| RE526657 | FINAL FUEL FILTER | fuel_filter |
| RE544394 | FINAL FUEL FILTER | fuel_filter |
| RE546336 | PRIMARY FUEL FILTER | fuel_filter |
| 101940474 | Serial Number Plate: The Serial Number Plate is located on the left side of the cylinder block behind the high pressure pipes of the Fuel injection pump. | fuel_pump |
| g01259333 | The fuel injection pump and related components | fuel_pump |
| i02074845 | Fuel System | fuel_system |
| i02406189 | Cleanliness of Fuel System Components | fuel_system_cleanliness |
| 101-4000 | Gasket | gasket |
| i01958097 | General Information | general_information |
| g01162916 | Engine Electronics - Grounding Practices | grounding_practices |
| g01244554 | Illustration 12 - High Pressure Fuel Lines | high_pressure_fuel_line |
| i02378733 | High Pressure Fuel Lines | high_pressure_fuel_line |
| g01288650 | High pressure fuel system (typical example) | high_pressure_fuel_system |
| g00281646 | Illustration 7 | illustration |
| g00984281 | Illustration 1 | illustration |
| g00993373 | Illustration 3 | illustration |
| 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 |
| g01265309 | Low pressure fuel system (typical example) | low_pressure_fuel_system |
| g01264620 | Flow diagram of the lubrication system | lubrication_system |
| 250-0486 | Oil Filter | oil_filter |
| 101372247 | Mounting and Dismounting | other_service |
| 101940475 | Engine Identification: Perkins engines are identified by a serial number. This number is shown on a serial number plate that is mounted on the left hand side of the engine block. | other_service |
| 102143194 | Lines, Tubes and Hoses | other_service |
| 102157341 | Before Starting Engine | other_service |
| 102164876 | Reference Numbers: Information for the following items may be needed to order parts. Locate the information for your engine. | other_service |
| 102176668 | Electrical System | other_service |
| 102197956 | Emissions Certification Film: Label for compliant engines. Examples of emissions labels. | other_service |
| 134277 | T70, T90 & T120 Super Quiet Generator Maintenance Schedule | other_service |
| 402207232 | Engine Starting | other_service |
| 901011348 | Model View Illustrations 9 | other_service |
| SU34458 | BRAKE DISK (Hand Brakes) | other_service |
| YZ91139 | CLUTCH DISK | other_service |
| g00104545 | Illustration 4 | other_service |
| g00687600 | Always use a board or cardboard when you check for a leak. Leaking fluid that is under pressure can penetrate body tissue. | other_service |
| g00702020 | Wear a hard hat, protective glasses, and other protective equipment, as required. | other_service |
| g00704000 | Illustration 8 | other_service |
| g00704059 | Illustration 9 | other_service |
| g00704135 | Illustration 10 | other_service |
| g01011349 | Model View Illustrations 10 | other_service |
| g01012280 | Model View Illustrations 7 | other_service |
| g01012281 | Model View Illustrations 8 | other_service |
| g01119323 | Emissions Control Information: ENGINE FAMILY: 1104C - 44TA MODEL YEAR: 2003. FOLLOWING INFORMATION APPLICABLE TO USA ONLY. This non-road engine does not comply with either federal non-road or California off-road engine emission regulation requirement. | other_service |
| g01154807 | Typical example | other_service |
| g01154858 | Typical example | other_service |
| g01187485 | Cylinder and valve location (Illustration 22) | other_service |
| g01200801 | Illustration 18 | other_service |
| g01205681 | Illustration 5 - Air inlet and exhaust system | other_service |
| g01216877 | Illustration 17 | other_service |
| g01245940 | Rear right engine view | other_service |
| g01245941 | Front left engine view | other_service |
| g01263698 | Typical Cylinder Block | other_service |
| g01263700 | Typical cylinder head | other_service |
| g01263701 | Pistons, Rings and Connecting Rods | other_service |
| g01263702 | Crankshaft | other_service |
| g01263703 | Gears and Timing Gear Case | other_service |
| g01263705 | Illustration of gears and timing gear case | other_service |
| g01263706 | Camshaft | other_service |
| g01263708 | Rocker Shaft Assembly | other_service |
| g01268960 | Hand (High Pressure) | other_service |
| g01426636 | Ether | other_service |
| g03450122 | Hand (High Pressure) | other_service |
| g03450123 | The warning label for the Hand (High Pressure) (2) | other_service |
| g03452577 | Grounding Practices (Illustration 15) | other_service |
| g03452579 | Grounding Practices (Illustration 16) | other_service |
| g03453612 | Serial Number Plate (Illustration 24) | other_service |
| i01372247 | Mounting and Dismounting | other_service |
| i01928905 | Engine Stopping | other_service |
| i02143194 | Crushing Prevention and Cutting Prevention | other_service |
| i02157341 | Before Starting Engine NOTICE For initial start-up of a new or rebuilt engine, and for start-up of an engine that has been serviced, make provision to shut the engine off should an overs peed occur. This may be accomplished by shutting off the air and/or fuel supply to the engine. | other_service |
| i02197956 | Record the information in the appropriate space. Make a copy of this list for a record. Keep the information for future reference. | other_service |
| i02207232 | Do not use aerosol types of starting aids such as ether. Such use could result in an explosion and personal injury. | other_service |
| i02234873 | Engine Stopping | other_service |
| i02235492 | Mounting and Dismounting | other_service |
| i02251260 | Engine Starting | other_service |
| i02322199 | Before Starting Engine | other_service |
| i02328435 | General Hazard Information | other_service |
| i02330192 | Monitoring System | other_service |
| i02334785 | Burn Prevention | other_service |
| i02378728 | Safety Messages | other_service |
| i02517251 | Introduction | other_service |
| i02525716 | Basic Engine Introduction | other_service |
| i02864025 | Safety Messages | other_service |
| i04823662 | Fire Prevention and Explosion Prevention | other_service |
| i05272352 | Engine Electronics (Operation Section) | other_service |
| i05302522 | Static Electricity Hazard when fueling with Ultra-low Sulfur Diesel Fuel | other_service |
| i05461290 | Safety Messages | other_service |
| i05463929 | Mounting and Dismounting | other_service |
| i05463931 | High Pressure Fuel Lines | other_service |
| i05464430 | Electrical System Never disconnect any charging unit circuit or battery circuit cable from the battery when the charging unit is operating. | other_service |
| i05536748 | Product Information - General Information | other_service |
| i05536753 | Product Description - Off Engine Parts and Options | other_service |
| i05536932 | Product Identification - Information (Illustration 23) | other_service |
| i05537598 | Gauges and Indicators (Illustration 31) | other_service |
| i05546770 | Monitoring System | other_service |
| i05737934 | General Hazard Information | other_service |
| i07451407 | Operation Section - Lifting and Storage (Illustration 26) | other_service |
| i08315117 | General Hazard Information | other_service |
| 01907756 | Water Pump - Inspect | pump |
| 4132F071 | PERKINS 1103/1104 ENGINES OIL PUMP ASSY | pump |
| ULPK0038 | PERKINS 1104 LIFT PUMP KIT | pump |
| 2418M517 | PERKINS 1104 VALVE SEAL (VITON) | seal |
| 2848A071 | PERKINS 1104 OIL PRESSURE SWITCH | sensor |
| 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 |
| g01236714 | Coolant Temperature Sensor | sensor |
| 250-0488 | Spark Plug | spark_plug |
| 4133L066 | PERKINS 1104D-E44T, 1104D-E44TA, 1106D-E66TA THERMOSTAT | thermostat |
| 4133L507 | PERKINS 1103, 1104 THERMOSTAT (82 Degrees) | thermostat |
| T413847 | PERKINS 1104, 1106 / CATERPILLAR THERMOSTAT | thermostat |
| 02196981 | Perkins Engines are designed for the following applications: machine, genset, and industrial mobile equipment. The engines are available in the following types of aspiration: Turbocharged aftercooled, Turbocharged, Naturally aspirated. | turbocharger |
| g00302786 | Illustration 6 - Turbocharger | turbocharger |
| g01263770 | Turbocharger | turbocharger |
| g03506649 | Turbocharge Engine View (Illustration 20) | turbocharger |
| i02527637 | Valve system components | valves |
| g01287919 | Typical turbocharger with the wastegate | wastegate |
| P601 | Wastegate Valve (if equipped) (2 Pin Connector) | wastegate valve |
| g00765012 | Welding on Engines with Electronic Controls | welding_procedures |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
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 Perkins 1104D-E44TAG2 engine has an oil capacity of 8.0 liters.
The Perkins 1104D-E44TAG2 has a displacement of 4.4 liters with 6 cylinders.
The Perkins 1104D-E44TAG2 powers 3 generator set(s), including FG Wilson MJB 225 MA4, Perkins 1104D-E44TAG2, Perkins 1104D-E44TAG2 ElectropaK.
The Perkins 1104D-E44TAG2 uses oil filter part numbers Fg Wilson 901103, Donaldson P554407, Wix 51459.
The Perkins 1104D-E44TAG2 uses air filter part numbers Fg Wilson 901048, Fg Wilson 901050, Perkins 26510343.