Excavator Alternators
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Alternator identified by primary reference 119751-77200. Yanmar technical documentation identifies 119751-77200 as a 12V 40A generator and the exact-number cross-checks support the listed TNV engine applications. Confirm the complete OE number, electrical rating, mounting, connector and original product before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Exact-number product identity | 119751-77200 |
| Same-number Formatting Variant | Search alias only | 11975177200 |
| Catalog Direct Interchange | Exact-number catalog reference family | 129423-77200 |
| Catalog Direct Interchange | Exact-number catalog reference family | 101211-1420 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
3 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
Recorded compatible model references include Documented engine models: 3TNV88-BDYE2, 3TNV88-BDYE2D and 3TNV88-BDYE2T, Cross-checked engine family: 3TNV76 and 4TNV88, Fitment limitation: Verify mounting, pulley, connector and original alternator number. Confirm the complete part number and machine serial range before ordering.
Documented direct interchanges: 129423-77200, 101211-1420. Formatting aliases for the same number: 11975177200.
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.
