Excavator 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 the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

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OEM / reference836666721

Specification12V 120A CW Alternator

Catalog ID55387453

12V 120A CW Alternator reference 836666721. Compare the complete part number, connector layout, mounting points and original unit before ordering; machine serial range can affect fitment.

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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Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Part Number	SISU DIESEL	836666721
Interchange Reference	ARROWHEAD	AIA0024
Interchange Reference	ARROWHEAD	400-29017
Interchange Reference	ARROWHEAD	IA0925
Interchange Reference	ARROWHEAD	MG178
Interchange Reference	ARROWHEAD	MG666
Interchange Reference	CARGO	113610
Interchange Reference	LESTER	12683
Interchange Reference	LETRIKA (ISKRA) AFTERMARKET	IA 0925
Interchange Reference	LETRIKA (ISKRA) DESCRIPTION	AAK5181
Interchange Reference	LETRIKA (ISKRA) DESCRIPTION	AAK5316
Interchange Reference	LETRIKA (ISKRA) DESCRIPTION	AAK5364
Interchange Reference	LETRIKA (ISKRA) OEM	11.201-925
Interchange Reference	LETRIKA (ISKRA) OEM	11.203.017
Interchange Reference	LETRIKA (ISKRA) OEM	11.203.099
Interchange Reference	MAHLE	MG178
Interchange Reference	MAHLE	MG666
Interchange Reference	SISU DIESEL	8366-660-39
Interchange Reference	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 the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

836666721

Formatting alias

8366-667-21

Direct interchange

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. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

12V 120A CW Alternator

Category: Excavator Alternators
Catalog ID: 55387453
Photo 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

11 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 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 3 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 836666721?

Documented direct interchanges: AIA0024, 400-29017, IA0925, MG178, MG666, 113610, 12683, IA 0925, AAK5181, AAK5316. 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.

Continue comparing verified references from the same system.

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