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Excavator Alternators

A4T66686 34368-01100 24V Alternator for CAT E320B 6D22

OEM / referenceA4T66686 34368-01100 · CAT E320B 6D22

Specification24V 55A

Catalog ID53572577

References A4T66686 and 34368-01100 are consistently associated with a 24-volt alternator for 6D22-powered E320B applications. Published output ratings conflict between 50A, 55A and 60A, so amperage is withheld pending the original nameplate check.

Fitment status: Pending · Checked 2026-07-26

Product Type: Alternator
Rated Voltage: 24V
Rated Current: Conflict: 50A, 55A and 60A published
Fitment Status: Nameplate, pulley and mounting verification pending

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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	Formal SKU and exact media	A4T66686
Unverified Reference - Do Not Order By This Number Alone	Cross-reference catalogs	34368-01100

Evidence record

Checked: 2026-07-26

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

Other documented relationship

34368-01100

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

Product summary

24V 55A

Category: Excavator 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

2 model references

Engine family: Mitsubishi 6D22
Machine family: CAT E320B; confirm exact configuration

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 Engine family: Mitsubishi 6D22, Machine family: CAT E320B; confirm exact configuration. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for A4T66686?

A4T66686 is the only classified number in the current evidence record. Send the original nameplate for an alternate-number check.

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.

Continue comparing recovered references from the same system.

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