Excavator Alternators

RE509080 12V 65A Alternator for John Deere 4024 4045 5030 Engines

Q: What numbers are documented for RE509080?

Primary Part Number: RE509080. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm RE509080 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 / referenceRE509080

SpecificationAlternator

Catalog ID53133756

RE509080 is a 12V 65A internally fanned alternator recorded for John Deere 4024, 4045 and 5030 engine families. Confirm the mounting arrangement and terminal configuration against the original unit.

Product Type: Alternator
Voltage: 12V
Amperage: 65A
Fan Type: Internal
Frame Style: Open
Condition: New replacement part

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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	Source catalog	RE509080

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

RE509080

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

Product summary

Alternator

Category: Excavator Alternators
Catalog ID: 53133756
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

13 model references

Recorded application: 4024HF285
Recorded application: 4024HF295
Recorded application: 4024TF270
Recorded application: 4024TF280
Recorded application: 4024TF281
Recorded application: 4045DF271
Recorded application: 4045HF280
Recorded application: 4045HMK80
Recorded application: 4045TF271
Recorded application: 4045TF281
Recorded application: 5030HF270
Recorded application: 5030HF285
Recorded application: 5030TF270

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 RE509080

Which machines use RE509080?

Recorded compatible model references include Recorded application: 4024HF285, Recorded application: 4024HF295, Recorded application: 4024TF270, Recorded application: 4024TF280, Recorded application: 4024TF281, Recorded application: 4045DF271, Recorded application: 4045HF280, Recorded application: 4045HMK80 and 5 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for RE509080?

No alternate number is listed for RE509080. Send the original nameplate for an alternate-number check.

How do I confirm RE509080 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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