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Alternators

4N3986 0R5203 24V 75A Alternator for CAT 3304 34SI

OEM / reference4N3986 0R5203 · CAT 3304 34SI
Specification24V 75A
Catalog ID53633326

24V 75A reference 4N3986 0R5203. Compatibility references include CAT 3304, CAT 34SI. Compare the part number, connector layout, mounting points and the original unit before ordering; machine serial range can affect fitment.

OEM
4N3986 0R5203
Feature
Alternator
VDC
24V 75A
Engine Model
CAT 3304 34SI

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

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

  • 4N3986
  • 0R5203
  • 4N3986 0R5203

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

Product summary

24V 75A

Category
Alternators
Catalog ID
53633326
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

  • CAT 3304
  • CAT 34SI

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Continue comparing recovered references from the same system.

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