Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.
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
Cross-reference (fitment check required)
HITACHI ELECTRIC
LR250-508B
Cross-reference (fitment check required)
HITACHI ELECTRIC
LR250-510B
Cross-reference (fitment check required)
HITACHI ELECTRIC
LR250-510C
Cross-reference (fitment check required)
LESTER
14621
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
Cross-reference (fitment check required)
LR250-508B
LR250-510B
LR250-510C
14621
Other documented relationship
LR250-510
LR250-511
LR250-517
8971701602
8971701631
1-3470-25W
Formatting aliases are the same number written differently. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.
Product summary
24V 50A Alternator
Category
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
2 model references
Published engine families: Isuzu 4HF1 / 4HG1 / 4HJ1
Published vehicle/equipment families: Isuzu N-Series / NPR / NKR and related 4.6L applications
Fitment / evidence notes
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. Recorded fitment/evidence notes: 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?
Documented reference numbers (verify configuration; not automatically direct interchanges): LR250-510, LR250-511, LR250-517, 8971701602, 8971701631, 1-3470-25W. See the complete relationship table above. Cross-references are listed in the relationship table above. Compare specifications and the original unit before treating a reference as interchangeable. 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.
