Excavator Alternators

8971443921 24V 50A Alternator for Isuzu 4HF1 4HG1 4HJ1 N-Series

Q: What numbers are documented for 8971443921?

Primary Equipment Part Number: 8971443921. Formatted Alias: 897144-3921. Published Replacement Reference: LR250-510. Published Replacement Reference: LR250-511. Published Replacement Reference: LR250-517. Published Equipment Reference: 8971701602. Published Equipment Reference: 8971701631. Aftermarket Catalog Reference: 1-3470-25W. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 8971443921 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

8971443921 24V 50A Alternator for Isuzu 4HF1 4HG1 4HJ1 N-Series, OEM/reference 8971443921, 24V 50A Alternator, product view 1

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OEM / reference8971443921

Specification24V 50A Alternator

Catalog ID64700771

8971443921 24V Alternator for Excavator and Diesel Equipment. EexcavaStart alternator identified by reference 8971443921. Compare the complete part number, connector or mounting configuration, and the original product photos before ordering. Send the machine model, serial number, and nameplate photo for a fitment check.

Product Type: Alternator
Voltage: 24 V
Rated Current: 50 A
Pulley: Multi-groove / tri-V family; verify supplied unit
Terminals and Regulator: Confirm against original label and connector
Condition: New replacement unit

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	Isuzu alternator number	8971443921
Formatted Alias	Same Isuzu number with grouping	897144-3921
Published Replacement Reference	Hitachi family; verify pulley and connector	LR250-510
Published Replacement Reference	Hitachi family; verify pulley and connector	LR250-511
Published Replacement Reference	Hitachi family; verify pulley and connector	LR250-517
Published Equipment Reference	Isuzu family; verify suffix/configuration	8971701602
Published Equipment Reference	Isuzu family; verify suffix/configuration	8971701631
Aftermarket Catalog Reference	aftermarket family	1-3470-25W

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

8971443921

Formatting alias

897144-3921

Other documented relationship

LR250-510
LR250-511
LR250-517
8971701602
8971701631
1-3470-25W

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

24V 50A Alternator

Category: Excavator Alternators
Catalog ID: 64700771
Photo views: 5

Before ordering

Confirm these details

Confirm voltage and rated amperage against the original alternator label.
Compare mounting ears, pulley type and pulley-groove count.
Check plug shape, terminal position and regulator connection.
Verify the engine model and machine serial range before ordering.

Machine fitment

Compatible model references

3 model references

Published engine families: Isuzu 4HF1 / 4HG1 / 4HJ1
Published vehicle/equipment families: Isuzu N-Series / NPR / NKR and related 4.6L applications
Fitment limitation: Confirm label, pulley, regulator, plug, mounts, engine and serial

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 8971443921

Which machines use 8971443921?

Recorded compatible model references include Published engine families: Isuzu 4HF1 / 4HG1 / 4HJ1, Published vehicle/equipment families: Isuzu N-Series / NPR / NKR and related 4.6L applications, Fitment limitation: Confirm label, pulley, regulator, plug, mounts, engine and serial. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 8971443921?

Formatting aliases for the same number: 897144-3921.

How do I confirm 8971443921 before ordering?

Confirm voltage and rated amperage against the original alternator label. Compare mounting ears, pulley type and pulley-groove count. Check plug shape, terminal position and regulator connection. Send clear photos of the original unit and connector layout when requesting a quote.

Continue comparing verified references from the same system.

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