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Isuzu 4LE2 Engine

The Isuzu 4LE2 is a 2.18 L 4-cylinder na engine rated at 2300 rpm, producing up to 29.7 kW. It powers generator sets from Doosan and Isuzu, including the L20 and IDE-6450A. It holds 8.1 L (2.1 gal) of oil and 2.8 L (0.7 gal) of coolant.

Also known as: ISUZU 4LE2

2.179 L

Displacement

Cylinders

2300 rpm

Rated speed

29 kW

Gross power

On this pageService parts Specs Generator sets Maintenance Filter cross-reference FAQ Service intervals Torque & specs Fluids Procedures

Service parts for the 4LE2

The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.

Air intake

1 required

8972319000Air filter$51.65NAPA

Fuel system

1 required

8981527372Fuel filter$14.97PartsGeek

Oil system

1 required

X13201002Oil filter$11.97PartsGeek

Hydraulic system

1 required

89761822820Hydraulic filter$16.97PartsGeek

Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.

Engine specifications

Oil capacity	8.1 L
Coolant capacity	2.8 L
Displacement	2.179 L
Cylinders	4
Aspiration	NA
Rated speed	2300 rpm
Gross power	29 kW

Generator sets powered by this engine

Shared across brands: Doosan, Isuzu

Doosan L20 Isuzu 4LE2Isuzu IDE-6450A

Troubleshooting

Fault codes

Code	Meaning
F	Battery overdischarge

Symptoms & remedies

Symptom	Cause
Charging failure	Faulty alternator.
Low speed driving	Excessive electrical loads - Insufficient battery capacity.
Excessive oil consumption	Wrong selection of kind and viscosity. Improper installation of filter and piping. Incorrect injection timing. Incorrect injection pressure. Injection nozzle malfunction. Incorrect valve clearance adjustment. Cylinder compression pressure leakage. Poor cylinder compression pressure. Insufficient air intake amount. Air cleaner clogging. Such as inferior ventilation.
Engine overheat	Insufficient coolant amount. Fan belt slippage. Thermostat malfunction. Cooling system defect. Radiator filler cap malfunction. Cooling system interior fouled. Radiator clogging. Engine over-loaded. Air cleaner element clogging. Insufficient ventilator. Stopped coolant flow (high concentration of antifreezer, etc.). Lack of oil. Improper oil - Wrong selection of kind and viscosity. Low oil pressure. High coolant temperature.

Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.

Common problems

The exhaust smoke is white
Cause: Insufficient warming-up, Too much engine oil
Fix: Perform warming-up, Adjust to the appropriate oil amount
The exhaust smoke is black
Cause: Failure of the engine control system, Clogging of the air cleaner, Failure of the fuel system, Clogging of the exhaust system
Fix: Clean or replace the element
Stopping the engine
Fix: 1. Confirm that the machine is not set to the operation/driving mode. 2. Before stopping the engine, decrease the engine speed to the idling speed to cool down for approx. 3 minutes. During this cooling down period, check for an abnormality in the engine sound, oil pressure, etc. 3. After confirming that the engine temperature has dropped to the specified level, turn the starter switch to
Low speed driving
Cause: Excessive electrical loads - Insufficient battery capacity.
Hour meter (Cumulative operating hour counter)
Fix: The cumulative time during engine operation is counted. Confirm that it is always operating while the engine is running. Perform inspection and maintenance on each part in accordance with the time count displayed in this hour meter. For details of the hour meter, refer to the instruction manual from the machine manufacturer.
Excessive oil consumption
Cause: Wrong selection of kind and viscosity. Improper installation of filter and piping. Incorrect injection timing. Incorrect injection pressure. Injection nozzle malfunction. Incorrect valve clearance adjustment. Cylinder compression pressure leakage. Poor cylinder compression pressure. Insufficient air intake amount. Air cleaner clogging. Such as inferior ventilation.
Engine overheat
Cause: Insufficient coolant amount. Fan belt slippage. Thermostat malfunction. Cooling system defect. Radiator filler cap malfunction. Cooling system interior fouled. Radiator clogging. Engine over-loaded. Air cleaner element clogging. Insufficient ventilator. Stopped coolant flow (high concentration of antifreezer, etc.). Lack of oil. Improper oil - Wrong selection of kind and viscosity. Low oil pressure. High coolant temperature.
Coolant temperature
Cause: Both too high and too low temperatures of the coolant can cause an engine malfunction. The temperature in the range of approx. 75 - 90°C (167 - 194°F) is suitable.
Fix: When the engine coolant temperature gauge reads a value exceeding the appropriate temperature, or when the coolant temperature warning light comes on, a dangerous condition of substantially heated engine can be suspected. For details of the coolant temperature warning light, refer to the instruction manual from the machine manufacturer. When the temperature of the coolant exceeds the appropriate temperature, the fuel flow is restricted. After stopping the machine operation, decrease the engine speed to the level equal to the idling speed, and then confirm that the coolant temperature has dropped to the appropriate temperature before stopping the engine.
Charging failure
Cause: Faulty alternator.
Battery overdischarge F
Abnormal noise of engine and color of exhaust smoke
Cause: Immediately after the engine is started, the engine sound is louder compared to the sound after the engine is warmed up, and also the color of the exhaust smoke becomes more whitened or more blackened than the smoke discharged during normal operation. The engine sound and the color of the exhaust smoke turn to normal after the engine is warmed up.
Fix: If an abnormality is found in the engine sound or the color of exhaust smoke, immediately contact an Isuzu Distributor.

Compiled from service & troubleshooting documentation across every generator set that uses the Isuzu 4LE2.

Maintenance schedule

Item	Spec	Capacity	Part #	Interval
Air filter			8972319000		Amazon eBay $95.00 NAPA $51.65
Fuel filter	element replacement		8981527372	500 hr	Amazon eBay $30.00 PartsGeek $14.97 NAPA $58.82
Oil filter			86.70000.04	1000 hr	buy
Battery			—	1000 hr
Belt	BELT		45.60002.01		buy
Coolant	replacement	2.8	—	750 hr
Coolant filter			—	1000 hr
Hydraulic filter			89761822820		Amazon eBay PartsGeek $16.97
Oil	API, CC or CD grade	8.7 L (qts)	—	250 hr
Spark plug			—	1500 hr

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Repair guides

Step-by-step procedures compiled from the Isuzu service manual for this engine.

Service intervals

Item	Action	Hours	Months	Notes
Engine oil	Change	250 hr		First service — Initial 50 and thereafter every 250 operating hours
Fuel filter element	Replace	500 hr		Every 500 operating hours
Oil filter element	Replace	500 hr		First service — Initial 50 and thereafter every 500 operating hours
Cooling system circuit	Clean	1000 hr		Every 1000 operation hours
Cylinder compression pressure	Test	1000 hr		Every 1000 operation hours; recommended maintenance (*)
Starter and alternator	Clean	1000 hr		Every 1000 operation hours; brush and commutator wear check; recommended maintenance (*)
Valve clearance	Adjust	1000 hr		Check and adjust every 1000 hours; recommended maintenance (*)
Injection nozzle	Test	1500 hr		Every 1500 operating hours; recommended maintenance
Positive crankcase ventilation valve	Clean	1500 hr		Every 1500 hours
Coolant	Change		6 mo	At intervals of 6 months if plain water, or 12 months if long life coolant (LLC)

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Cam height - Exhaust	Standard 6.43 / Limit 6.13	mm
Clearance	Cam height - Intake	Standard 6.13 / Limit 5.83	mm
Clearance	Camshaft center journal diameter	Nominal 52 ø / Limit 51.92 ø	mm
Clearance	Camshaft runout	Nominal 0.02 / Limit 0.1	mm
Clearance	Clearance between idle gear bushing and shaft	Standard 0.025 – 0.085 / Limit 0.2	mm
Clearance	Clearance between piston and cylinder bore	0.040 – 0.085	mm
Clearance	Clearance between piston pin and piston pin hole	0.007 – 0.017	mm
Clearance	Connecting rod bearing and crank pin clearance	Standard 0.035 – 0.073 / Limit 0.10	mm
Clearance	Connecting rod small end / piston pin clearance	Standard 0.008 – 0.020 / Limit 0.05	mm
Clearance	Crankshaft end play	Standard 0.058 – 0.208 / Limit 0.3	mm
Clearance	Crankshaft journal and bearing clearance	Standard 0.029 – 0.072 / Limit 0.11	mm
Clearance	Crankshaft journal outside diameter	Standard 60.0 / Limit 59.86	mm
Clearance	Crankshaft pin outside diameter	Standard 49.0 / Limit 48.87	mm
Clearance	Crankshaft runout	Standard 0.025 / Limit 0.05	mm
Clearance	Cylinder body upper face warpage	Standard 0.075 / Limit 0.15 / Max grinding allowance 0.3	mm
Clearance	Cylinder bore	Standard ø 85 / Limit ø 85.2	mm	13 mm below top
Clearance	Cylinder head lower face warpage	Standard 0.075 / Limit 0.15 / Max grinding allowance 0.3	mm
Clearance	Fan center and bearing shaft tightening allowance	Standard 0.008 – 0.010 / Limit 0.2	mm
Clearance	Idle gear shaft uneven wear	Nominal 45.0 / Limit 0.1	mm
Clearance	Idler gear end play	Standard 0.058 – 0.115 / Limit 0.2	mm
Clearance	Oil pump inner rotor and outer rotor clearance	Standard 0.17 / Limit 0.2	mm
Clearance	Oil pump outer rotor periphery and pump body clearance	Standard 0.10 – 0.185 / Limit 0.4	mm
Clearance	Oil pump outer/inner rotor and pump cover clearance	Standard 0.040 – 0.085 / Limit 0.15	mm
Clearance	Piston outside diameter	84.945 – 84.960	mm	grade NON
Clearance	Piston pin outside diameter	Nominal 25.0 / Limit 24.97	mm
Clearance	Piston ring groove clearance - 1st compression ring	Standard 0.085 – 0.105 / Limit 0.2	mm
Clearance	Piston ring groove clearance - 2nd compression ring	Standard 0.050 – 0.085 / Limit 0.15	mm
Clearance	Piston ring groove clearance - Oil ring	Standard 0.030 – 0.070	mm
Clearance	Push rod run-out	0.3	mm	limit
Clearance	Rocker arm bushing and rocker arm shaft clearance	Standard 0.005 – 0.045 / Limit 0.2	mm
Clearance	Rocker arm bushing inside diameter	11.960 – 11.980	mm	standard
Clearance	Rocker arm shaft diameter	Standard 11.935 – 11.955 / Limit 11.85	mm
Clearance	Tappet and tappet travelling bore clearance	Standard 0.020 – 0.054 / Limit 0.08	mm
Clearance	Tappet diameter	20.967 – 20.980	mm	standard
Clearance	Uneven wear of camshaft journal	Nominal 52 ø / Limit 0.05	mm
Clearance	Valve depression - EX	Standard 0.9 / Limit 1.5	mm
Clearance	Valve depression - IN	Standard 0.7 / Limit 1.2	mm
Clearance	Valve seat contact width	Standard 2.0 / Limit 2.5	mm
Clearance	Valve spring free length	Standard 42.1 / Limit 40.0	mm
Clearance	Valve spring inclination	Standard 1.8 / Limit 2.5	mm
Clearance	Valve stem outside diameter - Exhaust	Standard 7.0 / Limit 6.80	mm
Clearance	Valve stem outside diameter - Intake	Standard 7.0 / Limit 6.85	mm
Clearance	Water pump ball bearing play	0.53 – 2.17	mm	standard
Clearance	Water pump impeller and body clearance	0.026 – 0.061	mm	standard
Gap	Fan belt slackness (depression)	7.5 ~ 8.5	mm (0.30 ~ 0.33 in)	about 100 N (10 kg) depressing force at midway between fan pulley and alternator pulley
Gap	Piston ring gap - 1st compression ring	Standard 0.2 – 0.35 / Limit 1.5	mm
Gap	Piston ring gap - 2nd compression ring	Standard 0.35 – 0.5	mm
Gap	Piston ring gap - Oil ring	Standard 0.2 – 0.4 / Limit 1.0	mm
Gap	Timing gear backlash - Cam gear / Idler gear	Standard 0.03 / Limit 0.2	mm
Gap	Timing gear backlash - Crank gear / Idler gear	Standard 0.04 / Limit 0.2	mm
Injection timing	Injection timing	11	degrees B.T.D.C.
Injection timing	Injection timing (BTDC)	14	°	when at stop
Other	Connecting rod parallelism	Standard 0.05 / Limit 0.15	mm	per 100 mm
Other	Connecting rod torsion	Standard 0.05 / Limit 0.2	mm	per 100 mm
Other	Cooling fan drive belt deflection	7.5 – 8.5	mm	98 N (10 kg) force midway between fan pulley 1 and generator pulley 2
Other	Cylinder body height H	307.94 – 308.06	mm	reference
Other	Cylinder bore grade A diameter	85.000 – 85.010	mm
Other	Cylinder bore grade B diameter	85.011 – 85.020	mm
Other	Cylinder bore grade C diameter	85.021 – 85.030	mm
Other	Cylinder head height H	63.90 – 64.10	mm	reference

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Ambient	Capacity	Notes
Coolant	50/50 Ethylene glycol base antifreeze/water mix			2.8 L (3.0 qts)	Engine only; use clean drinking water when antifreeze not required; 50/50 mix protects to -37°C (-34°F); never exceed a 60/40 antifreeze/water mix (about -50°C/-58°F)
Engine oil	CD or CF-4 (or CE, CF, CH-4, CI-4 or CI-4 Plus)	API service category			Engine classification: with turbocharger. * may vary depending on each machine; refer to machine manufacturer specification.
Engine oil	ISUZU genuine engine oil - Besco Super: CC; Besco S-3: CD; Besco Multi Z: CD				ISUZU genuine engine oil options
Engine oil	SAE 10W	API CC or CD grade			Single grade; see engine oil viscosity chart vs ambient temperature
Engine oil	SAE 10W-30 / SAE 15W-40, 20W-40 / SAE 30 / SAE 40 / SAE 10W / SAE 20, 20W / SAE 5W-20				Engine oil viscosity chart by ambient temperature (single grade and multi grade). Select oil according to ambient temperature; viscosity affects startability, performance, oil consumption, wear and seizure.
Engine oil	SAE 10W–30	API CC or CD grade		8.7 L	Multi grade; total lubricant capacity; see engine oil viscosity chart vs ambient temperature
Engine oil	SAE 15W–40, 20W–40	API CC or CD grade			Multi grade; see engine oil viscosity chart vs ambient temperature
Engine oil	SAE 20, 20W	API CC or CD grade			Single grade; see engine oil viscosity chart vs ambient temperature
Engine oil	SAE 30	API CC or CD grade			Single grade; see engine oil viscosity chart vs ambient temperature
Engine oil	SAE 40	API CC or CD grade			Single grade; see engine oil viscosity chart vs ambient temperature
Engine oil	SAE 5W–20	API CC or CD grade			Multi grade; see engine oil viscosity chart vs ambient temperature
Engine oil	API, CC or CD grade	API	-25°C to 30°C	8.1 L (8.3 qts)	Viscosity selected according to ambient temperature (see Engine Oil Viscosity Grade - Ambient Temperature chart); never mix different brands/types
Fuel	Highspeed diesel fuel (SAE No.2)
Fuel	Diesel fuel ASTM D975 No.2-D	ASTM D975 No.2-D; JIS No.2; DIN 51601; SAE J-313C No.2-D; BS/2869-1970 Class A-1	above -7°C		Use Number 1-D below -7°C (20°F); do not use home heating oil or gasoline

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

COOLING FAN DRIVE BELT ADJUSTMENT adjustment

Check cooling fan drive belt for cracking and other damage.
Check belt tension by exerting 98 N (10 kg) midway between fan pulley 1 and generator pulley 2.
Loosen generator mounting bolt and generator adjusting bolt and pivot the generator to adjust tension.
Retighten the bolts after adjusting belt tension.

Fan Belt Tension Adjustment adjustment

⚠ Check and adjust fan belt tension with engine stopped

Loosen the alternator adjusting plate bolt and the alternator mounting bolt.
Pivot the alternator at the mounting bolt by adjusting the adjusting bolt.
Tighten the mounting bolt and the adjusting bolt.
Operate the engine about five minutes at low idle speed and recheck belt tension.

How to tighten by the angle method adjustment

⚠ Follow the instructed order to tighten bolts.

⚠ Do not retighten if you tighten by the angle method.

⚠ Check the mark to confirm you tightened the bolt to the specified angle; otherwise you may re-tighten by angle method and damage the bolt.

Tools: Bolt angle gauge (5-8840-0266-0)

Apply molybdenum disulfide or engine oil to the threads and the seating surface of the bolt following the instruction.
Tighten all bolts to the pre-indicated tightening torque.
Draw lines on the surface of the parts you tighten: lines through the bolt's center (A-B bolt side, C-D parts side) and the line at the specified tightening angle from the bolt's center (E-F).
Tighten the bolt with wrench until the line on the bolt (A-B) aligns with the specified angle line (E-F on the surface of the parts).

INJECTION TIMING adjustment

⚠ Take care to avoid entry of dust or foreign particles into the pump interior when the timing adjustment is made.

Remove injection pipe of No. 1 cylinder.
Remove delivery valve holder of No. 1 cylinder injection pump and pull out delivery spring.
With spring removed, install the delivery valve holder.
Slowly turn crankshaft pulley clockwise while feeding fuel; stop when fuel stops flowing from No. 1 delivery valve holder.
Confirm degree of crank pulley groove mark against timing mark on timing gear case.
Adjust injection timing with a shim between injection pump and cylinder block if out of range.

Procedure for using the plastigauge (example: connecting rod bearing to crank pin clearance) adjustment

⚠ Do not move the connecting rod while using the plastigauge.

Tools: Plastigauge

Clean the connecting rod and bearing, and install the bearing to the rod.
Cut the plastigauge to the same width as the crank pin, and lay the gauge parallel to the pin avoiding the oil hole.
Line up the marks on the connecting rod and cap and install the crank pin.
Apply molybdenum disulfide to the thread section and seating surface of the tightening bolt, and rotate both cap and bolt to the correct torque.
Gently remove the cap and connecting rod, and measure the crushed width of the plastigauge using the scale printed on the bag.

Procedure for using the plastigauge (example: crank bearing to crank journal clearance) adjustment

⚠ Do not rotate the crankshaft while using the plastigauge.

Tools: Plastigauge

Clean the clamp face of the cylinder block and crankcase bearing, and also the bearing, and install the cylinder block to the crankcase.
Gently rest the crankshaft on the cylinder block, and rotate it approximately 30 degrees to stabilize it.
Cut the plastigauge to the same size as the journal width, and lay the gauge parallel to the journal avoiding the oil hole.
Gently rest the crankcase on the cylinder block, apply molybdenum disulfide to the thread section and seating surface of the tightening bolt, and tighten in sequence to the correct torque.
Gently remove the crankcase, and measure the crushed width of the plastigauge using the scale printed on the bag.

VALVE CLEARANCE AND ADJUSTMENT adjustment

Tools: Feeler gauge

Bring No. 1 or No. 3 piston to TDC on compression stroke (align TDC mark with pulley groove mark).
Check for play in No. 1 intake and exhaust valve rocker arms to confirm compression stroke.
Loosen each valve clearance adjusting screw.
Insert a 0.40 mm (0.015 in) feeler gauge between rocker arm and valve stem end.
Turn adjusting screw until slight drag is felt on feeler gauge.
Tighten lock nut securely.
Rotate crankshaft 360° and realign crankshaft pulley.
Adjust clearances for remaining valves as shown in the illustration.

Valve Clearance Adjustment adjustment

⚠ The rocker arm is die-cast aluminum; do not tighten the adjusting screw to excess

Turn the crankshaft clockwise so the mark groove on the crank pulley aligns with the TDC mark on the timing gear case cover.
Remove the cylinder head cover and check if cylinder No.1 is at TDC in the compression stroke.
Measure and adjust the clearance of the valves marked for the condition of cylinder No.1.
Turn the crankshaft in normal direction to align marks again, then measure and adjust the other valves.

COMPRESSION PRESSURE MEASUREMENT diagnostic

Tools: Compression Gauge 5-8840-2675-0, Compression Gauge Adapter 5-8840-9029-0

Operate engine to warm up until coolant temperature reaches 75°C (167°F).
Remove all glow plugs and injection pipes.
Attach compression gauge to No. 1 cylinder glow plug installation threads.
Crank engine with starter motor and take compression gauge reading.
Repeat for remaining cylinders.

Application procedure for liquid gasket maintenance

⚠ Use the correct quantity of liquid gasket; always follow the handling instructions for each product.

⚠ Do not use gasket remover (Pando-391D) on resin components or painted components.

Wipe the contact surfaces clean of all water, oil or grease. The contact surfaces should be dry.
Apply a regular bead width of liquid gasket to one of the contact surfaces. Make sure that the bead does not break at this point.
If there are special regulations concerning the application procedure in the repair document, follow those regulations.

Coolant Change maintenance

⚠ Cover the radiator cap with a rag and turn slowly to release steam pressure when engine is hot

Remove the radiator cap.
Open the drain cock at the radiator lower part to drain coolant.
Drain coolant from the engine via the water drain plug at the rear of alternator on the left side of cylinder body.
Close or tighten the coolant drain plug.
Fill the radiator with clean drinking water up to the filler port neck, gradually to prevent air entry.
Operate the engine about five minutes at low idle speed to bleed air, then stop and replenish coolant.

Engine Oil and Oil Filter Element Change maintenance

⚠ Do not drain oil while the engine is still hot

Tools: filter wrench

Wipe clean around the oil filler cap and remove it.
Remove the oil pan drain plug and drain the engine oil completely.
Use a filter wrench to remove the cartridge type oil filter element.
Apply lightly engine oil to the O-ring of the new cartridge.
Turn in new cartridge until its sealed face contacts the O-ring.
Turn the cartridge in a further 3/4 turn with a filter wrench.
Reinstall the drain plug and fill with new engine oil by the oil filler port.
Wait about fifteen minutes and check the oil level with the dipstick.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Aftermarket parts that fit this engine

4445483 FridayParts $230.99 4402035 FridayParts $230.99 8980305740 FridayParts $688.99 8973295680 KuduParts $38.00 FridayParts $40.13 SinoCMP $79.00 17/932200 FridayParts $40.99 8972091152 FridayParts $67.83 SinoCMP $79.00 MV2-40 FridayParts $67.83 SinoCMP $79.00 EX4U FridayParts $67.83 SinoCMP $79.00 EX58 FridayParts $67.83 8-98023717-0 FridayParts $34.65 SinoCMP $48.00 8-98201472-0 FridayParts $16.90 8-97034591-0 FridayParts $172.99 SinoCMP $529.00 8-97034591-6 FridayParts $172.99 SinoCMP $529.00 8980305671 FridayParts $139.99 8973148952 FridayParts $237.00 8970488099 FridayParts $219.99 VI8980636630 FridayParts $219.99 VI8980957681 FridayParts $219.99 8942481610 KuduParts $14.00 FridayParts $14.50 SinoCMP $69.00 02/802896 FridayParts $219.99 02/803092 FridayParts $219.99 8-98163524-1 FridayParts $256.89 8-98163524-0 FridayParts $256.89 295050-0971 SinoCMP $249.00 FridayParts $256.89 VI8981635241 FridayParts $256.89 8976004340 FridayParts $25.02 8980274560 FridayParts $25.02 4657942 FridayParts $25.02 499000-7341 FridayParts $25.02 8970476042 FridayParts $48.99 5-82550-029-0 FridayParts $14.50 8972177780 FridayParts $68.78 1-82553-040-1 FridayParts $74.80 0-25000-7912 FridayParts $74.80 1825530400 FridayParts $74.80 716/30341 FridayParts $105.00 716/30303 FridayParts $105.00 8972584792 KuduParts $47.00 FridayParts $49.50 02/802961 KuduParts $47.00 FridayParts $49.50 8-94214962-0 FridayParts $16.99 8973617700 FridayParts $16.99 8970898910 FridayParts $16.99 8981566480 FridayParts $12.27 8973639360 FridayParts $12.27 8971690151 KuduParts $47.00 FridayParts $49.99 8-97169015-0 KuduParts $47.00 FridayParts $52.90 9-13713038-1 KuduParts $47.00 FridayParts $52.90 9-13713038-0 KuduParts $47.00 FridayParts $52.90 8981442741 FridayParts $388.90 L4417516 FridayParts $139.99 4423981 FridayParts $27.67 104139-1040 FridayParts $155.95 8972293682 FridayParts $155.95 8972293672 FridayParts $199.99 32/926119 FridayParts $36.00 8980305690 FridayParts $359.99 VI8980955500 FridayParts $359.99 87714516 FridayParts $359.99 8980638280 FridayParts $615.99 VI8980638280 FridayParts $615.99

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Filters for this engine

Air filter: Isuzu 8972319000 Donaldson P827653 Wix 46671 Baldwin RS3542
Fuel filter: Isuzu 8981527372 Donaldson P502163 Donaldson P502424 Wix 33393 Baldwin BF954 Wix 33740 Baldwin PF7984
Hydraulic filter: Isuzu 89761822820 Donaldson P550222 Wix 51622 Ac Delco HD222L Baldwin B252
Oil filter: Isuzu X13201002 Donaldson P557780 Wix 51452 Ac Delco PF960 Baldwin B114

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

Also used in

Hitachi ZX40U — Excavator Compact
Hitachi ZX50U — Excavator Compact
Kobelco SK75 — Excavator
Kobelco SK80 — Excavator Tracked
Sany SY70C — Excavator
Sany SY75C — Excavator

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.

Common questions

What is the oil capacity of the Isuzu 4LE2?

The Isuzu 4LE2 engine has an oil capacity of 8.1 liters.

What is the displacement of the Isuzu 4LE2?

The Isuzu 4LE2 has a displacement of 2.179 liters with 4 cylinders.

Which generators use the Isuzu 4LE2 engine?

The Isuzu 4LE2 powers 3 generator set(s), including Doosan L20, Isuzu 4LE2, Isuzu IDE-6450A.

What oil filter does the Isuzu 4LE2 use?

The Isuzu 4LE2 uses oil filter part numbers Isuzu X13201002, Donaldson P557780, Wix 51452.

What fuel filter does the Isuzu 4LE2 use?

The Isuzu 4LE2 uses fuel filter part numbers Isuzu 8981527372, Donaldson P502163, Donaldson P502424.

What air filter does the Isuzu 4LE2 use?

The Isuzu 4LE2 uses air filter part numbers Isuzu 8972319000, Donaldson P827653, Wix 46671.

How often should you change the oil in the Isuzu 4LE2?

The Isuzu 4LE2 oil change interval is every 250 hours.

What is a common problem with the Isuzu 4LE2 engine?

A commonly reported issue on generators using the Isuzu 4LE2 is: The exhaust smoke is white. Cause: Insufficient warming-up, Too much engine oil. Fix: Perform warming-up, Adjust to the appropriate oil amount.