Alternators

101211-1250 12V 35A Alternator for CAT 300.9D 301.4C

Q: What numbers are documented for 101211-1250?

Primary Part Number: 101211-1250. Catalog Cross-Reference - Verify Configuration: 14012N. Catalog Cross-Reference - Verify Configuration: 021250. Catalog Cross-Reference - Verify Configuration: 14012. Catalog Cross-Reference - Verify Configuration: 146-93125. Catalog Cross-Reference - Verify Configuration: 290-5170. Catalog Cross-Reference - Verify Configuration: 400-52208. Catalog Cross-Reference - Verify Configuration: 435-4983. Catalog Cross-Reference - Verify Configuration: 600-861-1350. Catalog Cross-Reference - Verify Configuration: 645.520.035.050. Catalog Cross-Reference - Verify Configuration: 90-29-5562. Catalog Cross-Reference - Verify Configuration: A-80411. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 101211-1250 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.

101211-1250 12V 35A Alternator for CAT 300.9D 301.4C, OEM/reference 101211-1250, Alternator, product view 1

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OEM / reference101211-1250

SpecificationAlternator

Catalog ID53133552

Product Type: Alternator
Product Brand: EexcavaStart
Technical Specification: 35 Amp/12 Volt, CW, 1-Groove Pulley
Design: IR/IF
Voltage: 12
Amperage: 35
Rotation: CW
Plug Clock: 12:00 Plug Clocking
Pulley Class: V1
Pulley Note: 76MM OD
Condition: New replacement part
Item Condition: Aftermarket Part
Part Type: UNIT
Regulator: IR
Fan Type: IF

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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	Source catalog	101211-1250
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	14012N
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	021250
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	14012
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	146-93125
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	290-5170
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	400-52208
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	435-4983
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	600-861-1350
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	645.520.035.050
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	90-29-5562
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	A-80411
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	ALT30337
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	AND0560
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	AVF-14012
Cross-reference (fitment check required)	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	CLA10404
Cross-reference (fitment check required)	ARROWHEAD	AND0560
Cross-reference (fitment check required)	ARROWHEAD	ND101211-1250
Primary Manufacturer Part Number	DENSO	101211-1250
Cross-reference (fitment check required)	J&N Electrical Products	400-52208
Cross-reference (fitment check required)	KOMATSU	600861-1350

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

101211-1250

Cross-reference (fitment check required)

14012N
021250
14012
146-93125
290-5170
400-52208
435-4983
600-861-1350
645.520.035.050
90-29-5562
A-80411
ALT30337
AND0560
AVF-14012
CLA10404
ND101211-1250
600861-1350

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

Alternator

Category: Alternators
Catalog ID: 53133552
Photo views: 5

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

Recorded application: Make: Caterpillar · Model: 300.9D · Year: 2011-2025 · Engine: L3 0.9L 54cid Yanmar 3TNV70
Recorded application: Make: Caterpillar · Model: 301.4C · Year: 2011-2025 · Engine: L3 1.1L 61cid Yanmar 3TNV76
Recorded application: Make: Caterpillar · Model: 301.7D · Year: 2013-2019 · Engine: L3 1.1L 61cid Yanmar 3TNV76
Recorded application: Make: Caterpillar · Model: 302.2D · Year: 2013-2019 · Engine: L3 1.1L 61cid Yanmar 3TNV76
Recorded application: Make: Caterpillar · Model: 302.4D · Year: 2013-2019 · Engine: L3 1.3L 77cid Yanmar 3TNV80F
Recorded application: Make: Caterpillar · Model: 302.7D · Year: 2012-2025 · Engine: L3 1.1L 61cid Yanmar 3TNV76
Recorded application: Make: Cummins Engines · Model: Misc. Engines · Year: 2007-2010 · Engine: 3.3L Dsl.
Recorded application: Make: Cummins Fire Power · Model: CFP33-F10 · Year: 2004-2010 · Engine: L4 3.3L 199cid Cummins CFP33-F10
Recorded application: Make: Cummins Fire Power · Model: CFP33-F20 · Year: 2004-2010 · Engine: L4 3.3L 199cid Cummins CFP33-F10
Recorded application: Make: Cummins Fire Power · Model: CFP33-F30 · Year: 2004-2010 · Engine: L4 3.3L 199cid Cummins CFP33-F10

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 101211-1250

Which machines use 101211-1250?

Recorded compatible model references include Recorded application: Make: Caterpillar · Model: 300.9D · Year: 2011-2025 · Engine: L3 0.9L 54cid Yanmar 3TNV70, Recorded application: Make: Caterpillar · Model: 301.4C · Year: 2011-2025 · Engine: L3 1.1L 61cid Yanmar 3TNV76, Recorded application: Make: Caterpillar · Model: 301.7D · Year: 2013-2019 · Engine: L3 1.1L 61cid Yanmar 3TNV76, Recorded application: Make: Caterpillar · Model: 302.2D · Year: 2013-2019 · Engine: L3 1.1L 61cid Yanmar 3TNV76, Recorded application: Make: Caterpillar · Model: 302.4D · Year: 2013-2019 · Engine: L3 1.3L 77cid Yanmar 3TNV80F, Recorded application: Make: Caterpillar · Model: 302.7D · Year: 2012-2025 · Engine: L3 1.1L 61cid Yanmar 3TNV76, Recorded application: Make: Cummins Engines · Model: Misc. Engines · Year: 2007-2010 · Engine: 3.3L Dsl., Recorded application: Make: Cummins Fire Power · Model: CFP33-F10 · Year: 2004-2010 · Engine: L4 3.3L 199cid Cummins CFP33-F10 and 2 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 101211-1250?

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 101211-1250 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.