Upgrade your engine’s charging system with this OEM-quality 24V 20Amp alternator for Isuzu 4JG1 engines. Designed for industrial machinery, generators, construction equipment, and commercial applications using the 4JG1 engine, this alternator delivers stable electrical power and ensures consistent battery performance.
Built to withstand heavy-duty, long-hour operation, it provides the durability, reliability, and precise fit expected from an OEM-standard component. Perfect for engine overhauls, electrical system repairs, or alternator replacement, ensuring your equipment runs smoothly and efficiently.
Key Features:
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OEM-grade 24V 20Amp alternator for Isuzu 4JG1 engine
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Ensures stable charging and reliable power output
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Suitable for generators, industrial equipment, and machinery
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High durability for heavy-duty, long-hour operation
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Improves electrical system performance and battery life
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Perfect fit for maintenance, rebuilds, and replacement
Frequently Asked Questions (FAQ)
1. Which engine is this alternator compatible with?
This alternator fits the Isuzu 4JG1 diesel engine.
2. What is the output of this alternator?
The alternator produces 24 volts and 20 amps, suitable for industrial applications.
3. Is this alternator OEM quality?
Yes, it meets OEM specifications for durability, performance, and perfect fit.
4. Can it be used in generators and industrial machinery?
Yes, it is widely used in generators, construction machinery, and equipment powered by the 4JG1 engine.
5. Does this alternator improve electrical system reliability?
Yes, it ensures stable electrical output and consistent battery charging for smooth engine operation.
Alternator 24V 20Amp | Isuzu 4JG1 Engine
OE Replacement: 894338-8470, 8943388470, 8943388471
Fits Following: Hitachi LR220-27B, LR220-27
Lucas LRA02531
Applications:
Isuzu Engines – Industrial Misc. Industrial Equipment C240 Engine 1983
Isuzu Engines – Industrial Misc. Industrial Equipment C330 Engine 1982
Isuzu Engine:4JB1
TCM Forklift:
FD20Z, FD23Z, FD25Z, FD28Z, FD30Z
Year: Provide vin# or serial number for Year Information




