Isuzu 3CE1 Engine

Name: Isuzu 3CE1 Engine
Brand: Isuzu

The Isuzu 3CE1 is a 1.6 L 3-cylinder naturally aspirated engine rated at 1800 rpm, producing up to 23.4 kW. It powers generator sets from Generac and Isuzu, including the MIH400HC, 3CE1BDZP and 3CE1BDZP1. It holds 6.3 L (1.7 gal) of oil and 2.1 L (0.6 gal) of coolant.

Also known as: ISUZU 3CE1, 3CE1

1.6 L

Displacement

Cylinders

1800 rpm

Rated speed

23 kW

Gross power

On this pageSpecs Generator sets Maintenance FAQ

Engine specifications

Oil capacity	6.3 L
Coolant capacity	2.1 L
Displacement	1.6 L
Cylinders	3
Aspiration	Naturally aspirated
Rated speed	1800 rpm
Gross power	23 kW

Generator sets powered by this engine

Shared across brands: Generac, Isuzu

Generac MIH400HCIsuzu 3CE1Isuzu 3CE1BDZPIsuzu 3CE1BDZP1

This engine also powers 7 machine(s) on Power Equipment Info.

Troubleshooting

Fault codes

Code	Meaning	Cause	Remedy
(000316)	Engine will not crank	Low battery output voltage or discharged battery.	Charge or replace batteries. See Battery Inspection. Loose or corroded connections. Clean and tighten connections. Faulty start circuit relay. Contact a GMASD.
(000139)	Engine misfiring or runs irregularly	Poor fuel quality; incorrect fuel/dirty fuel.	Test fuel, drain water from fuel bowl. Restricted fuel filter. Replace fuel filter element. Water, dirt, or air in fuel system. Drain, flush, fill, and purge fuel system.

Symptoms & remedies

Symptom	Cause	Remedy
Lack of engine power	Restricted air intake.	Service air cleaner.
Engine is in derate due to DTC		Contact a GMASD.

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

Common problems

Lack of engine power
Cause: Restricted air intake.
Fix: Service air cleaner. Restricted exhaust. Check and correct exhaust restriction. Poor fuel quality. Drain fuel and replace with proper grade and quality of fuel for operating condition. Restricted fuel filter. Replace fuel filter elements.
Engine will not crank
Cause: Low battery output voltage or discharged battery.
Fix: Charge or replace batteries. See Battery Installation and Replacement. Loose or corroded connections. Clean and tighten connections. Replace as necessary. Faulty start circuit relay. Contact a GMP ASD.
Engine misfiring or runs irregularly
Cause: Poor fuel quality; incorrect/dirty fuel.
Fix: Test fuel, drain water from fuel bowl. Replace with proper fuel. Restricted fuel filter. Replace fuel filter element. Water, dirt, or air in fuel system. Drain, flush, fill, and purge fuel system. See the engine manual.
Engine is in derate due to DTC
Fix: Contact a GMASD.
Starter cranks slowly
Cause: Low battery output voltage or discharged battery.
Fix: Charge or replace battery. See Battery Installation and Replacement. Excessive crankcase oil viscosity. Drain crankcase oil and replace with correct viscosity oil. See Draining and Refilling the Oil. Loose or corroded connections. Clean and tighten connections. Replace as necessary.
Hard to start or will not start
Cause: Incorrect starting procedure.
Fix: Review starting procedure. See Before Starting Engine and Engine and Heater Startup. Restricted exhaust. Check and correct exhaust restriction. No fuel. Fuel valves closed, not allowing fuel to return or supply. Check fuel tank and replenish. Open fuel valves. Air in fuel line. Purge fuel lines. See engine manual.
Excessive fuel consumption
Cause: Engine overloaded.
Fix: Reduce engine load. Restricted or dirty air cleaner. Replace air cleaner element as required. Insufficient compression. Determine cause of low compression and repair as required. Leaks in fuel supply system. Locate source of leak and repair as required.

Compiled from service & troubleshooting documentation across every generator set that uses the Isuzu 3CE1.

Maintenance schedule

Item	Spec	Capacity	Part #	Interval
Air filter			—
Fuel filter			—	1000 hr
Oil filter			—	500 hr
Battery	Battery—Type: Wet cell; Battery—Group Number: 24; Battery—Rating: CCA 720		—	720 hr
Belt			—	2000 hr
Coolant	Use demineralized or distilled water for best results. Hard water causes scale deposits, which reduces cooling efficiency and raises internal temperatures, possibly leading to engine damage.	5.2	—	1000 hr
Coolant filter			—
Oil	7 qt (6.7 L)	7.0 qt	—	1200 hr
Spark plug			—

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

Aftermarket parts that fit this engine

5864003910 FridayParts $199.00 5864019640 FridayParts $199.00 5864001510 FridayParts $199.00 5864002200 FridayParts $189.99 4HK1-XYGD04 FridayParts $233.96 8-98182-491-0 FridayParts $233.96 xygd04 FP-XP-0005904 G240 FridayParts $19.80 5-13610-038-1 FridayParts $93.66 FP-XP-0011900 FP-XP-0011600 FP-XP-0011510 D201 FridayParts $15.48 44-7711 FridayParts $38.50 FP-XP-0033823 FP-XP-0022411 FP-XP-0022168 FP-XP-0001906 FP-XP-0001905 4EC1-NA FridayParts $78.86 FP-XP-0001904 FP-XP-0001903 4fc1j FridayParts $68.80 FP-XP-0001833 FP-XP-0001832 4FC1J-T FridayParts $68.60 FP-XP-0001831 094000-0400 FridayParts $1599.99 8-97602488-0 FridayParts $1599.99 FP-XP-0013163 294000-2580 FridayParts $799.85 8-97435556-0 FridayParts $799.85 FP-XP-0013146 294050-0640 FridayParts $43.65 8-98239521-0 FridayParts $539.89 8-98239521-1 FridayParts $539.89 FP-XP-0013145 104139-1040 FridayParts $155.95 FP-XP-0012891 33-792 FridayParts $55.60 FP-XP-0017751 894450-7231 FridayParts $59.99 MV1-40 FridayParts $59.99 FP-XP-0036192 FP-XP-0032805 FP-XP-0042185 FP-XP-0042161 8-98177447-0 SinoCMP $379.00 8-98177448-0 SinoCMP $379.00 zx350 FridayParts $26.99 zx350l zx400w FP-XP-0032414 Z-5-13713-030-0 FridayParts $25.89 FP-XP-0027665 5-13610-009-0 FridayParts $134.50 FP-XP-0011493 11-4576 FridayParts $76.50 FP-XP-0011336

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

Common questions

What is the oil capacity of the Isuzu 3CE1?

The Isuzu 3CE1 engine has an oil capacity of 6.3 liters.

What is the displacement of the Isuzu 3CE1?

The Isuzu 3CE1 has a displacement of 1.6 liters with 3 cylinders.

Which generators use the Isuzu 3CE1 engine?

The Isuzu 3CE1 powers 4 generator set(s), including Generac MIH400HC, Isuzu 3CE1, Isuzu 3CE1BDZP, Isuzu 3CE1BDZP1.

How often should you change the oil in the Isuzu 3CE1?

The Isuzu 3CE1 oil change interval is every 1200 hours.

What is a common problem with the Isuzu 3CE1 engine?

A commonly reported issue on generators using the Isuzu 3CE1 is: Lack of engine power. Cause: Restricted air intake.. Fix: Service air cleaner. Restricted exhaust. Check and correct exhaust restriction. Poor fuel quality. Drain fuel and replace with proper grade and quality of fuel for operating condition. Restricted fuel filter. Replace fuel filter elements..