Excavator Alternators

AM880339 12V 35A Alternator for John Deere 1070, 2305 and 2320 UT

Q: What numbers are documented for AM880339?

Primary Part Number: AM880339. Independent Catalog Number: 10944N. Cataloged Manufacturer Family: KOKUSAN DENKI. Industry Catalog Number: 10944. Cataloged Replacement-Reference Family: John Deere AM877957, AM880339, Kokusan Denki GP9178. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm AM880339 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.

AM880339 12V 35A Alternator for John Deere 1070, 2305 and 2320 UT, OEM/reference AM880339, Alternator, product view 1

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OEM / referenceAM880339

SpecificationAlternator

Catalog ID64879368

AM880339 is an exact product reference in the reviewed official electrical catalog. The catalog specifies 12V, 35A, CW, ER/EF for selected John Deere 1070, 2305, 2320 UT applications. Compare the complete reference, electrical label, mounting, terminals, drive or pulley and the retained EexcavaStart product photographs with the original unit before ordering.

Product Type: Alternator
Voltage: 12 V
Rated Output: 35 A
Rotation: CW
Design Family: ER/EF
Manufacturer Series: PMA
Pulley Class: V1
Condition: New replacement part

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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 Part Number	Exact reviewed reference	AM880339
Independent Catalog Number	Catalog cross-reference number; not an OEM number	10944N
Cataloged Manufacturer Family	Manufacturer family stated by the official record	KOKUSAN DENKI
Industry Catalog Number	Independent cross-reference only	10944
Cataloged Replacement-Reference Family	Official grouped replacement family; confirm manufacturer context and suffix before substitution	John Deere AM877957, AM880339, Kokusan Denki GP9178

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

AM880339

Manufacturer number

KOKUSAN DENKI

Other documented relationship

10944N
10944
John Deere AM877957, AM880339, Kokusan Denki GP9178

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: 64879368
Photo views: 2

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

John Deere published applications — group 1: 1070 (1989-1996) — Yanmar 4TN84 Dsl. / 2305 (2002) — Yanmar 24.1HP Dsl. / 2320 UT (2002) — Yanmar 24.1HP Dsl. / 2520 Utility Tractor (2002) — Yanmar 26.4HP Dsl. / 4010 Utility Tractor (1996) — Yanmar 18.5HP Dsl. / 4100 Utility Tractor (1996) — Yanmar 20HP Dsl. / 4110 Utility Tractor (1996) — Yanmar 20HP Dsl. / 670 (1989-1996) — Yanmar 3TNA72 Dsl.
John Deere published applications — group 2: 770 (1989-1996) — Yanmar 3TN82 Dsl. / 790 (1984-1987) — Yanmar 27HP Dsl. / 870 (1989-1996) — Yanmar 3TN84 Dsl. / 970 (1989-1996) — Yanmar 4TN82 Dsl. / 990 Utility Tractor (1989-1996) — Yanmar 4TNE84 Dsl.
Fitment limitation: Confirm the complete part number, electrical rating, rotation, drive or pulley, mounting, terminals and equipment serial range before ordering.

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 AM880339

Which machines use AM880339?

Recorded compatible model references include John Deere published applications — group 1: 1070 (1989-1996) — Yanmar 4TN84 Dsl. / 2305 (2002) — Yanmar 24.1HP Dsl. / 2320 UT (2002) — Yanmar 24.1HP Dsl. / 2520 Utility Tractor (2002) — Yanmar 26.4HP Dsl. / 4010 Utility Tractor (1996) — Yanmar 18.5HP Dsl. / 4100 Utility Tractor (1996) — Yanmar 20HP Dsl. / 4110 Utility Tractor (1996) — Yanmar 20HP Dsl. / 670 (1989-1996) — Yanmar 3TNA72 Dsl., John Deere published applications — group 2: 770 (1989-1996) — Yanmar 3TN82 Dsl. / 790 (1984-1987) — Yanmar 27HP Dsl. / 870 (1989-1996) — Yanmar 3TN84 Dsl. / 970 (1989-1996) — Yanmar 4TN82 Dsl. / 990 Utility Tractor (1989-1996) — Yanmar 4TNE84 Dsl., Fitment limitation: Confirm the complete part number, electrical rating, rotation, drive or pulley, mounting, terminals and equipment serial range before ordering.. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for AM880339?

Manufacturer number: KOKUSAN DENKI.

How do I confirm AM880339 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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