Key Product Features

• Precision Engineering – Built to meet or exceed original OEM specifications for seamless integration with Isuzu, Mitsubishi, and Hitachi diesel engines.
• 8-Groove Serpentine Pulley – Features a factory-aligned 8-groove pulley system for maximum belt grip and efficient power transfer.
• Advanced Internal Regulator – Equipped with a high-performance internal regulator to prevent voltage spikes and protect your machine’s ECU and lighting systems.
• Built for Extremes – Constructed with high-temperature windings and heavy-duty bearings to withstand the vibration and thermal stress of 24/7 excavation work.
• Direct OEM Fit – No modifications required. Designed as a "drop-in" replacement for Isuzu 4HK1, 4HK1X, and Mitsubishi D04FR power plants.

Technical Specifications

OEM & Cross-Reference Part Numbers

This alternator is a direct replacement for the following part numbers:

• Isuzu: 8-98092-116, 8-98092-116-0, 8-98092-116-1, 8-97375-017-0
• Nikko/Hitachi: 0-35000-4848, 0-35000-4558, 0-35000-4598, 0-35000-4838
• JCB: 714/40523
• Other: A-80168, 01-35-3029, 024848, 100-50233

Professional Installation Guide

Follow these steps to ensure a safe and successful replacement:

1. System Shutdown: Turn off the engine and engage the master disconnect switch. Always disconnect the negative battery terminal first.
2. Belt Removal: Release the tensioner and carefully remove the drive belt from the old alternator pulley.
3. Wiring: Label and disconnect the electrical leads (typically B+ and Plug) from the rear of the unit.
4. Unit Swap: Unbolt the old alternator and mount the new unit. Torque the mounting bolts to your engine manufacturer's specifications.
5. Alignment Check: Ensure the 8-groove pulley is perfectly aligned with the drive belt system before tightening the belt.
6. Testing: Reconnect the battery. Start the engine and use a multimeter to verify the output is between 27.5V and 28.5V while running.

Why Choose This Unit?

Downtime in the construction industry means lost revenue. This alternator is manufactured using 100% new components (no remanufactured parts) to provide a longer service life. Its low-vibration design and specialized shielding protect internal components from dust and debris, common in mining and excavation sites. Trusted by fleet managers for its durability and consistent performance in Kobelco and John Deere machines.