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 Number
Mitsubishi alternator number
A4T66686
Cross-reference (fitment check required)
CAT/Mitsubishi application number
34368-01100
Formatted Search Alias
Same OEM number without separators
3436801100
Cross-reference (fitment check required)
6D22-family catalog reference; verify mounting before substitution
0-33000-6511
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
A4T66686
Formatting alias
3436801100
Cross-reference (fitment check required)
34368-01100
0-33000-6511
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
24V 50A Two-Groove Alternator
Category
Alternators
Catalog ID
53572577
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
5 model references
CAT excavator: 320
CAT excavator: 320B
CAT excavator: 320C
Engine family: Mitsubishi 6D22; confirm machine-specific mounting and pulley
Fitment limitation: Confirm A4T66686 / 34368-01100, 24V 50A, two-groove pulley, mounting and machine serial range
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 A4T66686
Which machines use A4T66686?
Recorded compatible model references include CAT excavator: 320, CAT excavator: 320B, CAT excavator: 320C, Engine family: Mitsubishi 6D22; confirm machine-specific mounting and pulley, Fitment limitation: Confirm A4T66686 / 34368-01100, 24V 50A, two-groove pulley, mounting and machine serial range. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for A4T66686?
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: 3436801100.
How do I confirm A4T66686 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.
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