Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Exact identity retained from the supplied application catalog | 780 311 73 |
Excavator Alternators
780 311 73 Alternator for Komatsu H185S
Brand illustration · Exact product photo available on request.
OEM / reference780 311 73
SpecificationAlternator
Catalog ID91001582
Primary reference 780 311 73 is listed as an alternator for Komatsu equipment. The source set contains 17 supporting catalog rows. Recorded machine applications include H185S. Confirm the complete part number, electrical rating, terminals, mounting arrangement and machine serial range against the original unit before ordering.
- Product Type
- Alternator
- Supply Brand
- EexcavaStart
- Equipment Brand
- Komatsu
- Catalog Classification
- Alternator
- Application Records
- 17
- Condition
- New replacement part
- Gallery Representation
- EexcavaStart neutral packaging illustration; exact product photo available on request
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
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
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Alternator
- Category
- Excavator Alternators
- Catalog ID
- 91001582
- Photo views
- 1
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
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 780 311 73
Which machines use 780 311 73?
Recorded compatible model references include Machine models: H185S, Fitment limitation: Confirm the exact part number, electrical rating, terminal layout, mounting and machine serial range before shipment. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for 780 311 73?
No alternate number is listed for 780 311 73. Send the original nameplate for an alternate-number check.
How do I confirm 780 311 73 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.