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24V 20A Alternator for Isuzu 4BD1 4BD1T Engine Hitachi Excavator EX100 EX120

24V 20A Alternator for Isuzu 4BD1 4BD1T Engine Hitachi Excavator EX100 EX120

SKU:400-50002

Regular price £141.60 GBP
Regular price £457.92 GBP Sale price £141.60 GBP
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Alternator for Isuzu 4BD1 & 4BD1T | 8944047902

Premium 24-Volt 20-Amp Industrial Replacement

This heavy-duty 24V 20A alternator is a precision-engineered replacement for Isuzu 4BD1 and 4BD1T series engines, commonly found in industrial equipment and excavators. Manufactured to meet or exceed original Nikko and Hitachi specifications, this unit ensures reliable battery charging and electrical system performance in demanding work environments.

RELIABILITY: Built with high-temperature epoxy and heavy-duty rectifiers to withstand the intense heat of industrial engine compartments.

Key Features

  • Direct Fit: No modifications required for Isuzu 4BD1/T.
  • Internal Regulator: Simplified installation.
  • Single V-Belt Pulley: 82mm OD for standard belts.
  • 100% Brand New: No core charge or refurbished parts.

Technical Specs

Voltage 24V DC
Amperage 20 Amps
Rotation Clockwise (CW)
Pulley Type 1-V Groove (82mm OD)
Regulator Internal
Fan External
B+ Terminal M5-0.8

Compatibility / Fitment Guide

Application Model / Engine Years
Isuzu Engines 4BD1 / 4BD1T Diesel 1986 - 1994
Hitachi Excavators EX100, EX120, EX150, EX90 Various
Link-Belt Excavators LS1600, LS2650C, LS2700C 1986 - 1996
Industrial Misc. Isuzu C240, C330 Engines Various

OEM Cross Reference

Isuzu 8944047900, 8944047902, 8-94404-790-2, 8944620570
Nikko 0-33000-5670, 0-33000-6250, 0330005670, 0330006250
Lester 12243
Other LRA02531 (Lucas), 113212 (Cargo), 400-50002 (Arrowhead)

Questions & Answers

Is this suitable for 12V Isuzu systems?

No. This is a 24-Volt unit. Installing this on a 12V vehicle will not charge the battery and may damage sensitive electrical components. Please verify your system voltage before ordering.

How do I know if it is compatible?

We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number matches any of these (specifically the Nikko 0-33000-6250 or Isuzu 8944047902), it is a guaranteed fit.

Does this include the pulley?

Yes, this unit comes complete with a single-groove V-belt pulley already installed for a direct "plug and play" installation.

Note: Distributed by 4Drive. Please verify your original part number against the references above before purchasing. For technical support, contact 4drive.co.uk.

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Shipping calculated at checkout. Free shipping over £150. Terms apply