Alternators

EexcavaStart 836666721 12V 120A Alternator for Valtra 6750 S230 S260

Q: What numbers are documented for 836666721?

Primary Manufacturer Part Number: 836666721. Interchange Reference: AIA0024. Interchange Reference: 400-29017. Interchange Reference: IA0925. Interchange Reference: MG178. Interchange Reference: MG666. Interchange Reference: 113610. Interchange Reference: 12683. Interchange Reference: IA 0925. Interchange Reference: AAK5181. Interchange Reference: AAK5316. Interchange Reference: AAK5364. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 836666721 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.

Packaging reference illustration for 836666721; not a product photograph

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 / reference836666721

Specification12V 120A CW Alternator

Catalog ID55387453

Product Type: Alternator
Product Brand: EexcavaStart
Item Condition: Aftermarket Part
Part Type: UNIT
Voltage: 12
Rotation: CW
Amperage: 120
Regulator: IR
Fan Type: IF
Fits: VALTRA 6750 2001-ON VALTRA S230 2002-ON VALTRA S260 2002-ON VALTRA T120 2002-ON VALTRA T130 2002-ON VALTRA T140 2002-ON VALTRA T160 2002-ON VALTRA T170 2002-ON VALTRA T180 2002-ON VALTRA T190 2002-ON
Image Disclosure: EexcavaStart labeled packaging placeholder; product photo pending

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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 Part Number	SISU DIESEL	836666721
Cross-reference (fitment check required)	ARROWHEAD	AIA0024
Cross-reference (fitment check required)	ARROWHEAD	400-29017
Cross-reference (fitment check required)	ARROWHEAD	IA0925
Cross-reference (fitment check required)	ARROWHEAD	MG178
Cross-reference (fitment check required)	ARROWHEAD	MG666
Cross-reference (fitment check required)	CARGO	113610
Cross-reference (fitment check required)	LESTER	12683
Cross-reference (fitment check required)	LETRIKA (ISKRA) AFTERMARKET	IA 0925
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5181
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5316
Cross-reference (fitment check required)	LETRIKA (ISKRA) DESCRIPTION	AAK5364
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.201-925
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.203.017
Cross-reference (fitment check required)	LETRIKA (ISKRA) OEM	11.203.099
Cross-reference (fitment check required)	MAHLE	MG178
Cross-reference (fitment check required)	MAHLE	MG666
Cross-reference (fitment check required)	SISU DIESEL	8366-660-39
Cross-reference (fitment check required)	SISU DIESEL	8366-662-26
Search Format Alias	Formatting variant only	8366-667-21

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

836666721

Formatting alias

8366-667-21

Cross-reference (fitment check required)

AIA0024
400-29017
IA0925
MG178
MG666
113610
12683
IA 0925
AAK5181
AAK5316
AAK5364
11.201-925
11.203.017
11.203.099
8366-660-39
8366-662-26

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 CW Alternator

Category: Alternators
Catalog ID: 55387453
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

10 model references

Valtra 6750: Equipment type: Tractor; Year: 2001 - ON
Valtra S230: Equipment type: Tractor; Year: 2002 - ON
Valtra S260: Equipment type: Tractor; Year: 2002 - ON
Valtra T120: Equipment type: Tractor; Year: 2002 - ON
Valtra T130: Equipment type: Tractor; Year: 2002 - ON
Valtra T140: Equipment type: Tractor; Year: 2002 - ON
Valtra T160: Equipment type: Tractor; Year: 2002 - ON
Valtra T170: Equipment type: Tractor; Year: 2002 - ON
Valtra T180: Equipment type: Tractor; Year: 2002 - ON
Valtra T190: Equipment type: Tractor; Year: 2002 - ON

Fitment / evidence notes

Fitment limitation: Confirm the original part number, electrical rating, pinion or pulley, terminals, mounting geometry 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 836666721

Which machines use 836666721?

Recorded compatible model references include Valtra 6750: Equipment type: Tractor; Year: 2001 - ON, Valtra S230: Equipment type: Tractor; Year: 2002 - ON, Valtra S260: Equipment type: Tractor; Year: 2002 - ON, Valtra T120: Equipment type: Tractor; Year: 2002 - ON, Valtra T130: Equipment type: Tractor; Year: 2002 - ON, Valtra T140: Equipment type: Tractor; Year: 2002 - ON, Valtra T160: Equipment type: Tractor; Year: 2002 - ON, Valtra T170: Equipment type: Tractor; Year: 2002 - ON and 2 additional models shown on this page. Recorded fitment/evidence notes: Fitment limitation: Confirm the original part number, electrical rating, pinion or pulley, terminals, mounting geometry and equipment serial range before ordering. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 836666721?

Cross-references are listed in the relationship table above. Compare specifications and the original unit before treating a reference as interchangeable. Formatting aliases for the same number: 8366-667-21.

How do I confirm 836666721 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.