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.
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 Manufacturer Part Number
DENSO
101211-3020
Search Format Alias
Formatting variant only
1012113020
Cross-reference (fitment check required)
API MARINE
20300
Cross-reference (fitment check required)
ARROWHEAD
400-52198
Cross-reference (fitment check required)
ARROWHEAD
ND101211-3021
Cross-reference (fitment check required)
CARGO
112491
Cross-reference (fitment check required)
DENSO
101211-3021
Cross-reference (fitment check required)
EMP PARTS
4-6449
Cross-reference (fitment check required)
J&N Electrical Products
400-52198
Cross-reference (fitment check required)
LESTER
12358
Cross-reference (fitment check required)
MERCURY MARINE
821663
Cross-reference (fitment check required)
MERCURY MARINE
821663-1
Cross-reference (fitment check required)
MERCURY MARINE
821663-A1
Cross-reference (fitment check required)
SIERRA MARINE
18-6449
Cross-reference (fitment check required)
WAI
12358N
Cross-reference (fitment check required)
WAI
1-2824-01ND
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
101211-3020
Formatting alias
1012113020
Cross-reference (fitment check required)
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. 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
12V 50A CW Alternator
Category
Alternators
Catalog ID
50430177
Illustration 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.
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 164 additional models shown on this page. Recorded fitment/evidence notes: Fitment limitation: Confirm the original part number, electrical rating, pinion or pulley, terminals, mounting geometry and equipment serial range before ordering. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for 101211-3020?
Cross-references are listed in the relationship table above. Compare specifications and the original unit before treating a reference as interchangeable. 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.
