Ensure stable electrical performance with this 24V / 50Amp Alternator, engineered specifically for Isuzu 4HF1 and 4HG1 diesel engines, commonly found in Isuzu NPR commercial trucks. This high-efficiency alternator provides consistent voltage output, fast charging recovery, and reliable operation under demanding conditions.
Built with high-strength copper windings, heat-resistant bearings, and a durable internal voltage regulator, this alternator ensures smooth and stable charging for all electrical components, including lights, ignition systems, sensors, and accessories.
This OEM-spec replacement alternator is perfect for trucks experiencing low voltage, dim lights, slow battery charging, or electrical power loss. It is designed for long-term use in heavy-duty environments such as transport fleets, delivery operations, and commercial vehicles.
Key Features & Benefits:
-
24V output ideal for commercial trucks
-
50Amp charging capacity for stable electrical performance
-
Designed for Isuzu 4HF1 and 4HG1 diesel engines
-
Perfect fit for Isuzu NPR trucks
-
Built with durable copper windings and solid internal components
-
Provides consistent power even under heavy electrical load
-
Helps extend battery life and prevent electrical issues
-
Easy installation and OEM-fit compatibility
FREQUENTLY ASKED QUESTIONS (FAQ)
Is this alternator compatible with Isuzu 4HF1 and 4HG1 engines?
Yes, this 24V 50Amp alternator is specifically designed to fit both 4HF1 and 4HG1 diesel engines.
Will this alternator fit Isuzu NPR trucks?
Yes, it is an ideal OEM-spec replacement for NPR models equipped with these engines.
What is the charging capacity of this alternator?
This alternator delivers a strong 50Amp output for reliable electrical performance.
Does this alternator improve battery performance?
Yes, stable charging helps extend battery life and prevents low-voltage issues.
Is this alternator suitable for heavy-duty usage?
Absolutely. It is built to handle the high electrical demands of commercial vehicles.
Alternator 24V / 50Amp | Isuzu 4HF1 / 4HG1 Engine / NPR
OE Replacement: LR250-509B, 897180-3751, YJ2018300A, LR250509B, 8971803751
Fits Following: Details: Volt: 24 / Amp: 50 / Pulley: 3V
Year: Provide vin# or serial number for Year Information




