Alternators

EexcavaStart 3821974M91 12V 80A Alternator for AGCO RT115 Cummins 6-359

Q: What numbers are documented for 3821974M91?

Primary Manufacturer Reference: 3821974M91. Cross-reference (fitment check required): 3821975M91. Cross-reference (fitment check required): 82036252. Cross-reference (fitment check required): 400-29021. Cross-reference (fitment check required): IA0984. Cross-reference (fitment check required): MG539. Cross-reference (fitment check required): 12697. Cross-reference (fitment check required): AAK3355. Cross-reference (fitment check required): AAK3356. Cross-reference (fitment check required): AAK4344. Cross-reference (fitment check required): 11.201.984. Cross-reference (fitment check required): 11.201.985. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 3821974M91 before ordering?

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

EexcavaStart packaging illustration · Not a photograph of this exact part. Exact-unit photo availability is not confirmed; send your original part number and unit photos with your inquiry.

OEM / reference3821974M91

Specification12V 80A Alternator; original-unit verification required

Catalog ID929290107

Product Type: Alternator
Product Brand: EexcavaStart
Primary Reference: 3821974M91
Equipment Scope: AGCO RT115; exact catalog-listed engine/year rows only
Voltage: 12 V
Rated Output: 80 A
Rotation: CW
Regulator: Internal
Availability: Quote only; stock not confirmed
Image Disclosure: Brand packaging illustration; exact-unit photograph not confirmed

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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 Manufacturer Reference	MASSEY FERGUSON	3821974M91
Cross-reference (fitment check required)	AGCO	3821975M91
Cross-reference (fitment check required)	AGCO	82036252
Cross-reference (fitment check required)	ARROWHEAD	400-29021
Cross-reference (fitment check required)	ARROWHEAD	IA0984
Cross-reference (fitment check required)	ARROWHEAD	MG539
Cross-reference (fitment check required)	LESTER	12697
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK3355
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK3356
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK4344
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.201.984
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.201.985
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.203.392

Product fitment guide

Part numbers and compatible models

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

Part identification

Reference numbers

Primary number

3821974M91

Cross-reference (fitment check required)

3821975M91
82036252
400-29021
IA0984
MG539
12697
AAK3355
AAK3356
AAK4344
11.201.984
11.201.985
11.203.392

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

12V 80A Alternator; original-unit verification required

Category: Alternators
Catalog ID: 929290107
Illustration 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

3 model references

AGCO RT115 2002 / Cummins 6-359: Catalog-listed; verify original unit number, mounting, pulley and electrical connections
AGCO RT115 2003 / Cummins 6-359: Catalog-listed; verify original unit number, mounting, pulley and electrical connections
AGCO RT115 2004 / Cummins 6-359: Catalog-listed; verify original unit number, mounting, pulley and electrical connections

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 3821974M91

Which machines use 3821974M91?

Recorded compatible model references include AGCO RT115 2002 / Cummins 6-359: Catalog-listed; verify original unit number, mounting, pulley and electrical connections, AGCO RT115 2003 / Cummins 6-359: Catalog-listed; verify original unit number, mounting, pulley and electrical connections, AGCO RT115 2004 / Cummins 6-359: Catalog-listed; verify original unit number, mounting, pulley and electrical connections. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 3821974M91?

Cross-references are listed in the relationship table above. Compare specifications and the original unit before treating a reference as interchangeable.

How do I confirm 3821974M91 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.