The Isuzu 4LE2T is a 2.2 L 4-cylinder turbocharged engine rated at 1800 rpm, producing up to 36 kW. It powers generator sets from Echo, Generac, Hipower, Isuzu and Westquip Diesel Sales, including the DGK20FS, DGK25F, MDG25IF4 and HRIW-25 T4F. It holds 10.3 L (2.7 gal) of oil and 14.1 L (3.7 gal) of coolant.
Also known as: ISUZU 4LE2T
Part of the Isuzu 4LE2T engine family — 2 variants share parts & fitment.
| Oil capacity | 10.3 L |
|---|---|
| Coolant capacity | 14.1 L |
| Displacement | 2.2 L |
| Cylinders | 4 |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
| Gross power | 36 kW |
Shared across brands: Echo, Generac, Hipower, Isuzu, Westquip Diesel Sales
This engine also powers 1 machine(s) on Power Equipment Info.
Compiled from service & troubleshooting documentation across every generator set that uses the Isuzu 4LE2T.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | S4CJ-1004 | E25F-004 | 600 hr | eBay PartsGeek | |
| Fuel filter | S4CJ-1003 | E25F-003 | 600 hr | eBay PartsGeek | |
| Oil filter | 5876100080 | 500 hr | PartsGeek $7.98 | ||
| Belt | S4CJ-1008 | E25F-008 | 600 hr | eBay PartsGeek | |
| Coolant | S4CJ-1007 | 2.6 gal. | E25F-007 | eBay PartsGeek | |
| Oil | S4CJ-1000 | 3.0 gal. | E25F-001 | 600 hr | eBay PartsGeek |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| SG12027E | Ammeter (Part number:46154 16000, Specification:0－50A 50/5A) | ammeter |
| SG13061 | Ammeter change-over switch (Part number:46913 01000) | ammeter_change_over_switch |
| SG12102 | Automatic voltage regulator (AVR) (Part number:46950 02901) | automatic_voltage_regulator |
| SG12036-1E | Auxiliary receptacles | auxreceptacle |
| SG13021 | AVR connector | avr_connector |
| SG12105E | Circuit protector (IDEC NRF110, Rated current:4.0A) | circuit_protector |
| 898227-1080 | Controller (ECM) | controller |
| 898227-1081 | Controller (ECM) | controller |
| SG14142 | Controller (ECM) (Part number:44390 04200, Connector terminal arrangement) | controller |
| SG12026E | Current transformer (CT) (Part number:46923 04700, Specification:5VA, 100/5A) | current_transformer |
| SG14141 | Diesel oxidation catalyst (DOC) (Exhaust IN, SEC B-B, Exhaust OUT, DOC drain) | diesel_oxidation_catalyst |
| SG09107-1 | Diode module | diode_module |
| SG14140 | EGR cooler (Part number:1. EGR cooler, 4. EGR valve, 2. Outlet port of coolant, 5. ECM, 3. Inlet port of coolant, 6. Boost pressure / boost temperature sensor) | egr_cooler |
| SG14139 | Electronic control fuel injection system (Common rail type) (Part number:6. Pressure limiter, 10. CKP sensor, 2. Fuel filter, 7. Injector, 11. CMP sensor, 3. Supply pump, 8. ECM, 12. Fuel tank) | electronic_control_fuel_injection_system |
| SG12101-1 | Exciter armature winding wires | exciter_armature_winding_wires |
| 898071-4010 | Fuel air-bleeding electromagnetic pump filter | fuel_filter |
| SG14129E | Fuel Piping | fuelpiping |
| SG14133 | Fuse (10A) | fuse |
| 898071-4040 | Gasket for fuel air-bleeding electromagnetic pump filter | gasket |
| SG130846 | GFCI receptacles | gfcireceptacle |
| A130889 | Manual-Auto selector switch | other_service |
| A130923 | Outline Drawing (mm) | other_service |
| A130941 | Outline Drawing (in.) | other_service |
| A131135 | Outline Drawing (mm) | other_service |
| A131136 | Outline Drawing (in.) | other_service |
| SG09069 | Protrusions | other_service |
| SG09070 | Timing chain sprocket | other_service |
| SG12120 | Measurement of generator winding wire resistance | other_service |
| SG12121 | Measurement of insulation resistance of exciter armature winding wires | other_service |
| SG14006 | Measurement of insulation resistance of generator winding wires | other_service |
| SG14043E | Generator’s Winding Wires Resistance Value | other_service |
| SG14045 | Measurement of insulation resistance of exciter field winding wire | other_service |
| 898027-4560 | Engine oil pressure sensor (for emergency stop) (Part number: ISUZU part number: 898027-4560) | sensor |
| SG09072 | Boost temperature / boost pressure sensor | sensor |
| SG12035-1 | Voltage adjusting resistor hand trimmer | sensor |
| SG14086-2E | Checking rotary rectifier and varistor | sensor |
| SG14154 | CMP sensor | sensor |
| SG14155 | EGR motor position sensor | sensor |
| SG14156 | Intake manifold temperature (IMT) sensor | sensor |
| 898074-9550 | Engine supply pump strainer | strainer |
| SG12022E | Thermal relay (Part number:46928 01500) | thermal_relay |
| SG14008 | Varistor | varistor |
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.
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 Isuzu 4LE2T engine has an oil capacity of 10.3 liters.
The Isuzu 4LE2T has a displacement of 2.2 liters with 4 cylinders.
The Isuzu 4LE2T powers 6 generator set(s), including Echo DGK20FS, Echo DGK25F, Generac MDG25IF4, Hipower HRIW-25 T4F, Isuzu HPPI-20.
The Isuzu 4LE2T uses oil filter part numbers Isuzu 5876100080, Donaldson P550162, Wix 51334.
The Isuzu 4LE2T uses fuel filter part numbers Isuzu 8944015310, Isuzu H132401, Donaldson P502166.
The Isuzu 4LE2T uses air filter part numbers Isuzu 8972319000, Isuzu 5864014350, Isuzu 8972599390.
The Isuzu 4LE2T oil change interval is every 600 hours.
A commonly reported issue on generators using the Isuzu 4LE2T is: Sparking occurs. Fix: Shut the engine down.