Starter Motors

YM129407-77010 Komatsu Starter Motor for 4D84E-3D

Q: What numbers are documented for YM129407-77010?

Primary Part Number: YM129407-77010. Related reference - verify configuration: SND0394. Related reference - verify configuration: IMI214-007. Related reference - verify configuration: ND9722809-025. Related reference - verify configuration: ND9722809-373. Related reference - verify configuration: ND228000-0251. Related reference - verify configuration: ND228000-3732. Related reference - verify configuration: 110485. Related reference - verify configuration: CY-129129-77010. Related reference - verify configuration: CY-129407-77010. Related reference - verify configuration: 228000-0250. Related reference - verify configuration: 228000-0251. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm YM129407-77010 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 / referenceYM129407-77010

SpecificationStarter Motor

Catalog ID91002076

Product Type: Starter Motor
Supply Brand: EexcavaStart
Equipment Brand: Komatsu
Catalog Classification: Starting Motor Ass'Y,(See Fig.A6210-B0A1)
Application Records: 6
Condition: New replacement part
Gallery Representation: EexcavaStart neutral packaging illustration; actual product photograph pending
Reference limitation: Confirm original-unit ratings, mounting, connections and equipment serial range; related numbers do not guarantee universal interchange.

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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 Part Number	Product reference; supplied-unit verification pending	YM129407-77010
Cross-reference (fitment check required)	ARROWHEAD	SND0394
Cross-reference (fitment check required)	ARROWHEAD	IMI214-007
Cross-reference (fitment check required)	ARROWHEAD	ND9722809-025
Cross-reference (fitment check required)	ARROWHEAD	ND9722809-373
Cross-reference (fitment check required)	ARROWHEAD	ND228000-0251
Cross-reference (fitment check required)	ARROWHEAD	ND228000-3732
Cross-reference (fitment check required)	CARGO	110485
Cross-reference (fitment check required)	CUB CADET	CY-129129-77010
Cross-reference (fitment check required)	CUB CADET	CY-129407-77010
Cross-reference (fitment check required)	DENSO	228000-0250
Cross-reference (fitment check required)	DENSO	228000-0251
Cross-reference (fitment check required)	DENSO	228000-3730
Cross-reference (fitment check required)	DENSO	228000-3731
Cross-reference (fitment check required)	DENSO	228000-3732
Cross-reference (fitment check required)	DENSO REMAN	9722809-025
Cross-reference (fitment check required)	J&N Electrical Products	410-52124
Cross-reference (fitment check required)	J&N Electrical Products	410-52391
Cross-reference (fitment check required)	John Deere	AM876435
Cross-reference (fitment check required)	John Deere	AM878415
Cross-reference (fitment check required)	John Deere	RG60654
Cross-reference (fitment check required)	John Deere	SE501878
Cross-reference (fitment check required)	John Deere	TY25233
Cross-reference (fitment check required)	John Deere	TY25237
Cross-reference (fitment check required)	KOMATSU	YM129129-77010
Cross-reference (fitment check required)	LESTER	18014
Cross-reference (fitment check required)	LESTER	19187
Cross-reference (fitment check required)	THERMO KING	10-45-2176
Cross-reference (fitment check required)	THERMO KING	45-2176
Cross-reference (fitment check required)	WAI	18014N
Cross-reference (fitment check required)	YANMAR	129129-77010
Cross-reference (fitment check required)	YANMAR	129407-77010

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

YM129407-77010

Cross-reference (fitment check required)

SND0394
IMI214-007
ND9722809-025
ND9722809-373
ND228000-0251
ND228000-3732
110485
CY-129129-77010
CY-129407-77010
228000-0250
228000-0251
228000-3730
228000-3731
228000-3732
9722809-025
410-52124
410-52391
AM876435
AM878415
RG60654
SE501878
TY25233
TY25237
YM129129-77010
18014
19187
10-45-2176
45-2176
18014N
129129-77010
129407-77010

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

Starter Motor

Category: Starter Motors
Catalog ID: 91002076
Illustration views: 1

Before ordering

Confirm these details

Confirm voltage and power rating against the original starter nameplate.
Compare mounting-hole pattern, flange position and overall body orientation.
Confirm pinion tooth count and rotation where those values are specified.
Verify the engine model and machine serial range before ordering.

Machine fitment

Compatible model references

1 model reference

Engine models: 4D84E-3D

Fitment / evidence notes

Fitment limitation: Confirm the exact part number, electrical rating, terminal layout, mounting and machine serial range before shipment

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 YM129407-77010

Which machines use YM129407-77010?

Recorded compatible model references include Engine models: 4D84E-3D. Recorded fitment/evidence notes: Fitment limitation: Confirm the exact part number, electrical rating, terminal layout, mounting and machine serial range before shipment. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for YM129407-77010?

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 YM129407-77010 before ordering?

Confirm voltage and power rating against the original starter nameplate. Compare mounting-hole pattern, flange position and overall body orientation. Confirm pinion tooth count and rotation where those values are specified. Send clear photos of the original unit and connector layout when requesting a quote.