The Isuzu 4BG1 is a 4.3 L 4-cylinder turbocharged engine rated at 1800 rpm. It powers generator sets from MQ Power, including the DCA-45SSIU, DCA-45SSIU2 and DCA-45SSIU2 WhisperWatt.
Also known as: Isuzu 4BG1
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| Displacement | 4.3 L |
|---|---|
| Cylinders | 4 |
| Aspiration | turbocharged |
| Rated speed | 1800 rpm |
Compiled from service & troubleshooting documentation across every generator set that uses the Isuzu 4BG1.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Every 50 hours | — | 50 hr | ||
| Fuel filter | — | ||||
| Oil filter | 1134202322 | Amazon eBay $39.99 KuduParts $48.00 | |||
| Belt | — | ||||
| Coolant filter | — | ||||
| Spark plug | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
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 4BG1 has a displacement of 4.3 liters with 4 cylinders.
The Isuzu 4BG1 powers 3 generator set(s), including MQ Power DCA-45SSIU, MQ Power DCA-45SSIU2, MQ Power DCA-45SSIU2 WhisperWatt.
The Isuzu 4BG1 uses oil filter part numbers Isuzu 1134202322, Donaldson P502060, Donaldson P550596.
The Isuzu 4BG1 uses fuel filter part numbers Isuzu 8981527372, Isuzu H132401, Donaldson P502424.
The Isuzu 4BG1 uses air filter part numbers Isuzu 142151830, Isuzu IF10604003F, Isuzu IF10604002F.
A commonly reported issue on generators using the Isuzu 4BG1 is: Gainst the wheel drum makes the wheel difficult to turn. Fix: Rotate the star wheel in the opposite direction until the wheel rotates freely with slight lining drag..