5 product photos · Select a thumbnail to change the main view.

Excavator Alternators

600-821-3840 24V 15A Alternator

Name: 600-821-3840 24V 15A Alternator
Brand: EexcavaStart
SKU: 600-821-3840

OEM / reference600-821-3840

SpecificationAlternator

Catalog ID53684814

Alternator identified by primary reference 600-821-3840. Catalog-confirmed configuration: 24V, 15A. The cited technical sources record 59 application references. Confirm the complete number, connector or mounting arrangement, and machine serial range before ordering.

Fitment status: Verified · Checked 2026-07-22

Product Type: Alternator
Product Brand: EexcavaStart
Voltage: 24V 15A
Technical Specification: 15 Amp/24 Volt, CW, 1-Groove Pulley
Design: IR/EF
Voltage: 24
Amperage: 15
Rotation: CW
Pulley Class: V1
Pulley Note: 76.9MM OD
Condition: New replacement part

Send email inquiry Ask on WhatsApp Return to catalog

Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Source catalog	600-821-3840
Verified Direct Interchange	Source catalog	12253N
Verified Direct Interchange	Source catalog	0-33000-5480
Verified Direct Interchange	Source catalog	0-33000-5510
Verified Direct Interchange	Source catalog	0-33000-5700
Verified Direct Interchange	Source catalog	113212
Verified Direct Interchange	Source catalog	12253
Verified Direct Interchange	Source catalog	12256
Verified Direct Interchange	Source catalog	144-14201
Verified Direct Interchange	Source catalog	166.001.020
Verified Direct Interchange	Source catalog	166.001.020.130
Verified Direct Interchange	Source catalog	166.001.020.710
Verified Direct Interchange	Source catalog	285-125
Verified Direct Interchange	Source catalog	285-130
Verified Direct Interchange	Source catalog	310-003
Verified Direct Interchange	Source catalog	400-50012
Verified Direct Interchange	Source catalog	40796RI
Verified Direct Interchange	Source catalog	600-821-3850
Verified Direct Interchange	Source catalog	600-821-3860
Verified Direct Interchange	Source catalog	612253
Verified Direct Interchange	Source catalog	612256
Verified Direct Interchange	Source catalog	90-28-4022
Verified Direct Interchange	Source catalog	A-8821
Verified Direct Interchange	Source catalog	ALT29003
Verified Direct Interchange	Source catalog	ANK0009
Verified Direct Interchange	Source catalog	AVF-12253
Verified Direct Interchange	Source catalog	AVF-12256
Verified Direct Interchange	Source catalog	CAL50602AS
Verified Direct Interchange	Source catalog	CAL50602GS
Verified Direct Interchange	Source catalog	CAL50620GS
Verified Direct Interchange	Source catalog	F032113212
Verified Direct Interchange	Source catalog	F674091
Verified Direct Interchange	Source catalog	LRA02455
Verified Direct Interchange	Source catalog	RKD15A01
Verified Direct Interchange	Source catalog	X612253
Verified Direct Interchange	Source catalog	X612256

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

12253N
0-33000-5480
0-33000-5510
0-33000-5700
113212
12253
12256
144-14201
166.001.020
166.001.020.130
166.001.020.710
285-125
285-130
310-003
400-50012
40796RI
600-821-3840
600-821-3850
600-821-3860
612253
612256
90-28-4022
A-8821
ALT29003
ANK0009
AVF-12253
AVF-12256
CAL50602AS
CAL50602GS
CAL50620GS
F032113212
F674091
LRA02455
RKD15A01
X612253
X612256
6008213840

Search with or without hyphens. Match the complete number on the original part.

Product summary

Alternator

Category: Excavator Alternators
Catalog ID: 53684814
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

59 model references

Recorded application: Make: Komatsu · Model: D20 · Year: 1988-1990 · Engine: 4D95S Engine
Recorded application: Make: Komatsu · Model: D21 · Year: 1988-1990 · Engine: 4D95S Engine
Recorded application: Make: Komatsu · Model: D31 · Year: 1988-1995 · Engine: 4D105 Engine
Recorded application: Make: Komatsu · Model: D31 · Year: 1988-1995 · Engine: 6D105 Engine
Recorded application: Make: Komatsu · Model: D31 · Year: 1988-1995 · Engine: 6D95L Engine
Recorded application: Make: Komatsu · Model: D40 · Year: 1986-1995 · Engine: 4D105-5 Engine
Recorded application: Make: Komatsu · Model: D40 · Year: 1986-1995 · Engine: 6D105-5 Engine
Recorded application: Make: Komatsu · Model: D40 · Year: 1986-1995 · Engine: 6D95L Engine
Recorded application: Make: Komatsu · Model: D41 · Year: 1986-1995 · Engine: 4D105-5 Engine
Recorded application: Make: Komatsu · Model: D41 · Year: 1986-1995 · Engine: 6D105-5 Engine
Recorded application: Make: Komatsu · Model: D41 · Year: 1988-1995 · Engine: 6D95L Engine
Recorded application: Make: Komatsu · Model: E70Z · Year: 1991-1995 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: E70ZS · Year: 1991-1995 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: EC50Z · Year: 1986-1995 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: EC50ZS · Year: 1986-1995 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: EC50ZSB · Year: 1995-1997 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: EC75Z · Year: 1986-1995 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: EC75ZS · Year: 1986-1995 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: EG85B · Year: 1986-1994 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: EG85BS · Year: 1986-1994 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD23-10 · Year: 1991-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD25-10 · Year: 1989-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD25-11 · Year: 1989-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD25S-11 · Year: 1989-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD25V-11 · Year: 1989-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD28-10 · Year: 1988-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD30-11 · Year: 1988-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD30H-11 · Year: 1988-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD30S-11 · Year: 1988-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD30S-5 · Year: 1988-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD30SV-11 · Year: 1990-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD30V-11 · Year: 1990-2007 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: FD40DC · Year: 1986-1994 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40HT · Year: 1986-2007 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40HTE · Year: 1986-1997 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40HTE · Year: 1995-1997 · Engine: 6D105 Engine
Recorded application: Make: Komatsu · Model: FD40HWC · Year: 1986-2007 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40HWCE · Year: 1995-2007 · Engine: 6D105 Engine
Recorded application: Make: Komatsu · Model: FD40HWCE · Year: 1995-2007 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40S-4 · Year: 1989-1991 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40WC · Year: 1986-2007 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40WCE · Year: 1995-1997 · Engine: 6D105 Engine
Recorded application: Make: Komatsu · Model: FD40WCE · Year: 1995-1997 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40Z-4 · Year: 1990-1992 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD40Z-5 · Year: 1993-1995 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD45-4 · Year: 1989-1991 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD45-5 · Year: 1991-1994 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD45H-4 · Year: 1989-1992 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD45S-4 · Year: 1989-1993 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD50E · Year: 1986-1997 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD50H · Year: 1986-1994 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: FD70HE · Year: 1995-1997 · Engine: 6D105 Engine
Recorded application: Make: Komatsu · Model: FD70HE · Year: 1995-1997 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: PC60 · Year: 1995-1997 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: PC75U · Year: 1995-1997 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: PC80 · Year: 1995-1997 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: PC90 · Year: 1995-1997 · Engine: 4D95 Engine
Recorded application: Make: Komatsu · Model: S23 · Year: 1987-1994 · Engine: 6D95 Engine
Recorded application: Make: Komatsu · Model: S23E · Year: 1987-1994 · Engine: 6D95 Engine

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 600-821-3840

Which machines use 600-821-3840?

Recorded compatible model references include Recorded application: Make: Komatsu · Model: D20 · Year: 1988-1990 · Engine: 4D95S Engine, Recorded application: Make: Komatsu · Model: D21 · Year: 1988-1990 · Engine: 4D95S Engine, Recorded application: Make: Komatsu · Model: D31 · Year: 1988-1995 · Engine: 4D105 Engine, Recorded application: Make: Komatsu · Model: D31 · Year: 1988-1995 · Engine: 6D105 Engine, Recorded application: Make: Komatsu · Model: D31 · Year: 1988-1995 · Engine: 6D95L Engine, Recorded application: Make: Komatsu · Model: D40 · Year: 1986-1995 · Engine: 4D105-5 Engine, Recorded application: Make: Komatsu · Model: D40 · Year: 1986-1995 · Engine: 6D105-5 Engine, Recorded application: Make: Komatsu · Model: D40 · Year: 1986-1995 · Engine: 6D95L Engine and 51 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What part numbers cross-reference with 600-821-3840?

The recorded reference family includes 12253N, 0-33000-5480, 0-33000-5510, 0-33000-5700, 113212, 12253, 12256, 144-14201, 166.001.020, 166.001.020.130, 166.001.020.710, 285-125 and additional numbers listed above.

How do I confirm 600-821-3840 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 recovered references from the same system.

Browse this category