Excavator Alternators

EexcavaStart 101211-3020 12V 50A Alternator for Mercury Marine 225CXL 225CXL Bluewater 225CXL Bluewater EFI

Q: What numbers are documented for 101211-3020?

Primary Manufacturer Part Number: 101211-3020. Search Format Alias: 1012113020. Interchange Reference: 20300. Interchange Reference: 400-52198. Interchange Reference: ND101211-3021. Interchange Reference: 112491. Interchange Reference: 101211-3021. Interchange Reference: 4-6449. Interchange Reference: 12358. Interchange Reference: 821663. Interchange Reference: 821663-1. Interchange Reference: 821663-A1. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 101211-3020 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 / reference101211-3020

Specification12V 50A CW Alternator

Catalog ID50430177

12V 50A CW Alternator reference 101211-3020. 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
Unit Type: Alternator
Voltage: 12
Rotation: CW
Amperage: 50
Regulator: IR
Fits: MERCURY MARINE 1-V PULLEY
Image Disclosure: EexcavaStart labeled packaging placeholder; product photo pending

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Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Part Number	DENSO	101211-3020
Search Format Alias	Formatting variant only	1012113020
Interchange Reference	API MARINE	20300
Interchange Reference	ARROWHEAD	400-52198
Interchange Reference	ARROWHEAD	ND101211-3021
Interchange Reference	CARGO	112491
Interchange Reference	DENSO	101211-3021
Interchange Reference	EMP PARTS	4-6449
Interchange Reference	J&N Electrical Products	400-52198
Interchange Reference	LESTER	12358
Interchange Reference	MERCURY MARINE	821663
Interchange Reference	MERCURY MARINE	821663-1
Interchange Reference	MERCURY MARINE	821663-A1
Interchange Reference	SIERRA MARINE	18-6449
Interchange Reference	WAI	12358N
Interchange Reference	WAI	1-2824-01ND

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

101211-3020

Formatting alias

1012113020

Direct interchange

20300
400-52198
ND101211-3021
112491
101211-3021
4-6449
12358
821663
821663-1
821663-A1
18-6449
12358N
1-2824-01ND

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

12V 50A CW Alternator

Category: Excavator Alternators
Catalog ID: 50430177
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

173 model references

Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1994
Mercury Marine 225CXL: Equipment type: Engine - Marine Outboard; Year: 1994
Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 225CXL: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 225CXL Bluewater: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225CXL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225CXL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225CXL OS: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225CXL OS: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225CXL OS: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225CXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225CXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225CXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225CXL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 225CXL Seapro: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 225CXL Seapro: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 225CXL Seapro: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 225CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1994
Mercury Marine 225CXXL: Equipment type: Engine - Marine Outboard; Year: 1994
Mercury Marine 225CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 225CXXL: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 225CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 225CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 225CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 225CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 225CXXL Bluewater: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225CXXL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225CXXL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225CXXL OS: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225CXXL OS: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225CXXL OS: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225CXXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225CXXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225CXXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225CXXL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 225L: Equipment type: Engine; Engine: 185cu in 3L; Year: 1994
Mercury Marine 225L: Equipment type: Engine - Marine Outboard; Year: 1994
Mercury Marine 225L: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 225L: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225L: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 225L: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225L: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 225L: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225L: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 225L: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225L: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 225L: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225L: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 225L EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225L EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225L EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225L EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225L EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 225XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1994
Mercury Marine 225XL: Equipment type: Engine - Marine Outboard; Year: 1994
Mercury Marine 225XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 225XL: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 225XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 225XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 225XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 225XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 225XL Bluewater: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225XL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225XL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225XL OS: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225XL OS: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225XL OS: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225XL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225XL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225XL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225XL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 225XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1994
Mercury Marine 225XXL: Equipment type: Engine - Marine Outboard; Year: 1994
Mercury Marine 225XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 225XXL: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 225XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 225XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 225XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 225XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 225XXL Bluewater: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225XXL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 225XXL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 225XXL OS: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225XXL OS: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225XXL OS: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225XXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 225XXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 225XXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 225XXL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 250CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 250CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 250CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 250CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 250CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 250CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 250CXL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 250CXL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 250CXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 250CXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 250CXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 250CXL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 250CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 250CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 250CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 250CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 250CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 250CXXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 250CXXL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 250CXXL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 250CXXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 250CXXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 250CXXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 250CXXL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 250XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 250XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 250XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 250XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 250XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 250XL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 250XL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 250XL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 250XL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 250XL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 250XL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 250XL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 250XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995
Mercury Marine 250XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996
Mercury Marine 250XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997
Mercury Marine 250XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 250XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 250XXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 250XXL Bluewater EFI: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 250XXL EFI: Equipment type: Engine - Marine Outboard; Year: 1995
Mercury Marine 250XXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1996
Mercury Marine 250XXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1997
Mercury Marine 250XXL OS EFI: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 250XXL Saltwater EFI: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 3.0 CXL SeaPro: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 3.0 CXL SeaPro: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 3.0 CXL SeaPro: Equipment type: Engine - Marine Outboard; Year: 2001
Mercury Marine 300CL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 300CL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 300CL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 300CL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 300CL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 300CL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 300CXL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 300CXL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 300CXL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 300CXL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 300CXL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 300CXL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 300L Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 300L Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 300L Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 300L Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 300L Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 300L Promax Racing: Equipment type: Engine - Marine Outboard; Year: 2000
Mercury Marine 300XL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998
Mercury Marine 300XL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1998
Mercury Marine 300XL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999
Mercury Marine 300XL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 1999
Mercury Marine 300XL Promax Racing: Equipment type: Engine; Engine: 185cu in 3L; Year: 2000
Mercury Marine 300XL Promax Racing: Equipment type: Engine - Marine Outboard; Year: 2000
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 101211-3020

Which machines use 101211-3020?

Recorded compatible model references include Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1994, Mercury Marine 225CXL: Equipment type: Engine - Marine Outboard; Year: 1994, Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1995, Mercury Marine 225CXL: Equipment type: Engine - Marine Outboard; Year: 1995, Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1996, Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1997, Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1998, Mercury Marine 225CXL: Equipment type: Engine; Engine: 185cu in 3L; Year: 1999 and 165 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 101211-3020?

Documented direct interchanges: 20300, 400-52198, ND101211-3021, 112491, 101211-3021, 4-6449, 12358, 821663, 821663-1, 821663-A1. Formatting aliases for the same number: 1012113020.

How do I confirm 101211-3020 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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