The Generac 2.4L Inline 4 is a 2.4 L 4-cylinder turbocharged/aftercooled engine rated at 1800 rpm. It powers generator sets from Generac, including the QT022, QT035 and QT036. It holds 3.79 L (1.0 gal) of oil and 9.46 L (2.5 gal) of coolant.
Also known as: Generac 2.4L Inline 4
Part of the Generac 2.4L engine family — 5 variants share parts & fitment.
| Oil capacity | 3.785 L |
|---|---|
| Coolant capacity | 9.4635 L |
| Displacement | 2.4 L |
| Cylinders | 4 |
| Aspiration | Turbocharged/Aftercooled |
| Rated speed | 1800 rpm |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Full flow spin-on cartridge | — | |||
| Battery | Group 26, 525CCA | — | |||
| Coolant | 2.5 US gal | — | |||
| Oil | 4 Quarts | 4.0 Quarts | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Speed | Rated synchronous RPM | 1800 | rpm | 60 Hz |
| Speed | Steady state frequency regulation | ± 0.25% | % | |
| Temperature | Operating temperature rise | 120 | °C | above a 40 °C ambient |
| Voltage | Voltage regulation | ± 1% | % |
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 |
|---|---|---|---|---|---|
| Fuel | Natural gas, propane vapor | Operating fuel pressure 5” - 14” H2O |
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 |
|---|---|---|---|---|
| 120/208V | 3-phase | 0.8 pf | 4 wire | 36 kW LPG / 35 kW NG; 125 A LPG / 121 A NG; CB size both 150 |
| 120/240V | 1-phase | 1.0 pf | 36 kW LPG / 35 kW NG; 150 A LPG / 146 A NG; CB size both 175 | |
| 120/240V | 3-phase | 0.8 pf | 4 wire | 36 kW LPG / 35 kW NG; 108 A LPG / 105 A NG; CB size both 125 |
| 277/480V | 3-phase | 0.8 pf | 4 wire | 36 kW LPG / 35 kW NG; 54 A LPG / 52 A NG; CB size both 60 |
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 |
|---|---|---|
| 0E9868A | ALTERNATOR DC W/OUT PULLEY | Alternator |
| 0G0788 | PULLEY DC ALTERNATOR (3600 RPM) | Alternator |
| 0G2750 | PULLEY 69 OD DC ALTERNATOR (1800 RPM) | Alternator |
| 0D3488S | BELT SERPENTINE 37.0" (1800 RPM) | Belt |
| 0G0952 | POLY V-BELT G2 (3600 RPM) | Belt |
| 0G0950 | GASKET INTAKE MANIFOLD | Gasket |
| 047290 | HOSE 3/8 ID SINGLE BRAID (16” LG) | Hose |
| 049340 | BARBED EL 90 1/4 NPT X 3/8 | Hose |
| 069860E | HOSE DRAIN ASSY 28" | Hose |
| 0C7649 | CLAMP HOSE .38-.87 | Hose |
| 0G0707 | MANIFOLD INTAKE (USE HOSE 0G0816) | Hose |
| 005616-0 | Extreme Cold Weather Kit | Service part / kit |
| 005630-0 | Cold Weather Kit | Service part / kit |
| 005984-0 | Scheduled Maintenance Kit | Service part / kit |
| 029333A | TIE WRAP UL 7.4" X .19" BLK (NOT SHOWN) | Service part / kit |
| 042574 | ADAPTOR 1/8 NPTF TO 1/8 BSPT | Service part / kit |
| 043790 | BARBED EL 90 3/8 NPT X 3/8 | Service part / kit |
| 045771 | NUT HEX M8-1.25 G8 CLEAR ZINC | Service part / kit |
| 052265 | SCREW HHC M8-1.25 X 65 C8.8 | Service part / kit |
| 057765 | ADAPTER M14-1.50 X 3/8 NPT | Service part / kit |
| 057772 | WASHER NYLON .565 | Service part / kit |
| 077043H | CONDUIT FLEX .25"ID (6” LG) | Service part / kit |
| 0F2664H | ASSY DIPSTICK W/TEXT GTH-530 | Service part / kit |
| 0F3217 | SPACER DC ALTERNATOR PULLEY | Service part / kit |
| 0F9420 | ADAPTER ENGINE 2.4L MACHINE | Service part / kit |
| 0F9583 | SPACER 2.4L G2 FLEX PLATE | Service part / kit |
| 0G0792A | SHIELD HEAT SML | Service part / kit |
| 0G1476 | COVER CAM GEAR G2 REWORKED | Service part / kit |
| 0G3910 | EXHAUST MANIFOLD G2 (MACHINE) | Service part / kit |
| 0G6093E | FLEX PLATE 2 POLE 2.4L G2 | Service part / kit |
| 0G8427A | ASSY DIPSTICK TUBE 2.4 G2 | Service part / kit |
| 0G8488 | MANIFOLD INTAKE (MACHINED) | Service part / kit |
| 0G8853 | COIL-2.4L G2 IGNITION | Service part / kit |
| 0G8877B | HARN ENG 2.4L R-200B 3600 NO-T (NOT SHOWN) | Service part / kit |
| 0G92210AS0R | SHIELD HEAT | Service part / kit |
| 0H1275A | HARN ENG 2.4L R-200C 3600 RPM | Service part / kit |
| 0H1619 | ENGINE 2.4L G2 CERTIFIED | Service part / kit |
| 0G3823 | O-RING SIZE 9.0MM X 2.0MM NITR | Seal |
| 0A6751 | SW-TMP 245 DEG 3/8 NPT | Sensor |
| 0A8584 | Switch | Sensor |
| 0D2244M | ASSY MAGPICKUP (3/8-24 MALE) | Sensor |
| 0E0502 | TEMPERATURE SENDER DELPHI | Sensor |
| 0F4612 | SENDER OIL PRESSURE 1/8" NPT | Sensor |
| 0G1472A | CAM SENSOR PIN ASSY | Sensor |
| 0G8854 | SPARK PLUG WIRE SET 2.4L G2 IG | Spark plug |
| 0H0015 | SPARK PLUG WIRE SET 2.4L G2 IG | Spark plug |
| 0G7461 | STARTER MOTOR 12V | Starter |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Generac 2.4L Inline 4 engine has an oil capacity of 3.785 liters.
The Generac 2.4L Inline 4 has a displacement of 2.4 liters with 4 cylinders.
The Generac 2.4L Inline 4 powers 3 generator set(s), including Generac QT022, Generac QT035, Generac QT036.