Alternators

EexcavaStart 3788017M91 12V 120A Alternator for AGCO LT70 Cummins 4-239

Q: What numbers are documented for 3788017M91?

Primary Manufacturer Reference: 3788017M91. Cross-reference (fitment check required): AIA0019. Cross-reference (fitment check required): MG308. Cross-reference (fitment check required): IA0970. Cross-reference (fitment check required): 400-29028. Cross-reference (fitment check required): 12690. Cross-reference (fitment check required): AAK5189. Cross-reference (fitment check required): AAK5193. Cross-reference (fitment check required): AAK5194. Cross-reference (fitment check required): AAK5195. Cross-reference (fitment check required): AAK5323. Cross-reference (fitment check required): AAK5379. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 3788017M91 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 / reference3788017M91

Specification12V 120A Alternator; original-unit verification required

Catalog ID929290535

Product Type: Alternator
Product Brand: EexcavaStart
Primary Reference: 3788017M91
Equipment Scope: AGCO LT70; exact catalog-listed engine/year rows only
Voltage: 12 V
Rated Output: 120 A
Rotation: CW
Regulator: Internal
Fan Type: Internal fan
Configuration Restriction: AGCO LT70 with Cummins 4-239 engine, 2002-2004 rows only; 12 V 120 A internally regulated internal-fan variant. Match original mounting, pulley and connector.
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	3788017M91
Cross-reference (fitment check required)	ARROWHEAD	AIA0019
Cross-reference (fitment check required)	ARROWHEAD	MG308
Cross-reference (fitment check required)	ARROWHEAD	IA0970
Cross-reference (fitment check required)	J&N Electrical Products	400-29028
Cross-reference (fitment check required)	LESTER	12690
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5189
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5193
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5194
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5195
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5323
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5379
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5557
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5562
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.201.970
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.201.976
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.201.977
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.201.978
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.203.033
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.203.160
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.203.365
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.203.388
Cross-reference (fitment check required)	MASSEY FERGUSON	3821976M91
Cross-reference (fitment check required)	MASSEY FERGUSON	3821976M92
Cross-reference (fitment check required)	MASSEY FERGUSON	3821977M91
Cross-reference (fitment check required)	MASSEY FERGUSON	3821978M91
Cross-reference (fitment check required)	MASSEY FERGUSON	3823654M2
Cross-reference (fitment check required)	MASSEY FERGUSON	4271312M91
Cross-reference (fitment check required)	MASSEY FERGUSON	4279541M92

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

3788017M91

Cross-reference (fitment check required)

AIA0019
MG308
IA0970
400-29028
12690
AAK5189
AAK5193
AAK5194
AAK5195
AAK5323
AAK5379
AAK5557
AAK5562
11.201.970
11.201.976
11.201.977
11.201.978
11.203.033
11.203.160
11.203.365
11.203.388
3821976M91
3821976M92
3821977M91
3821978M91
3823654M2
4271312M91
4279541M92

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 120A Alternator; original-unit verification required

Category: Alternators
Catalog ID: 929290535
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 LT70 2002 / Cummins 4-239: Catalog-listed; verify original unit number, mounting, pulley and electrical connections; AGCO LT70 with Cummins 4-239 engine, 2002-2004 rows only; 12 V 120 A internally regulated internal-fan variant. Match original mounting, pulley and connector.
AGCO LT70 2003 / Cummins 4-239: Catalog-listed; verify original unit number, mounting, pulley and electrical connections; AGCO LT70 with Cummins 4-239 engine, 2002-2004 rows only; 12 V 120 A internally regulated internal-fan variant. Match original mounting, pulley and connector.
AGCO LT70 2004 / Cummins 4-239: Catalog-listed; verify original unit number, mounting, pulley and electrical connections; AGCO LT70 with Cummins 4-239 engine, 2002-2004 rows only; 12 V 120 A internally regulated internal-fan variant. Match original mounting, pulley and connector.

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 3788017M91

Which machines use 3788017M91?

Recorded compatible model references include AGCO LT70 2002 / Cummins 4-239: Catalog-listed; verify original unit number, mounting, pulley and electrical connections; AGCO LT70 with Cummins 4-239 engine, 2002-2004 rows only; 12 V 120 A internally regulated internal-fan variant. Match original mounting, pulley and connector., AGCO LT70 2003 / Cummins 4-239: Catalog-listed; verify original unit number, mounting, pulley and electrical connections; AGCO LT70 with Cummins 4-239 engine, 2002-2004 rows only; 12 V 120 A internally regulated internal-fan variant. Match original mounting, pulley and connector., AGCO LT70 2004 / Cummins 4-239: Catalog-listed; verify original unit number, mounting, pulley and electrical connections; AGCO LT70 with Cummins 4-239 engine, 2002-2004 rows only; 12 V 120 A internally regulated internal-fan variant. Match original mounting, pulley and connector.. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 3788017M91?

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 3788017M91 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.