Excavator Alternators

125-2994 Alternator Group for Cat 311D 312D 315D 320B 320C Excavators

Q: What numbers are documented for 125-2994?

Primary Equipment Part Number: 125-2994. Owned-Source Related Number - Verify Configuration: 10R-7560. Internal Folder Shorthand: 13-E315D. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 125-2994 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.

125-2994 Alternator Group for Cat 311D 312D 315D 320B 320C Excavators, OEM/reference 125-2994, Alternator Group, product view 1

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OEM / reference125-2994

SpecificationAlternator Group

Catalog ID78186554

125-2994 is an official Cat alternator group used across multiple excavator families. Cat lists 311D LRR, 312D, 313D, 314D, 315D, 318D, 319D, 320, 320B and 320C applications. The public manufacturer page does not publish voltage or amperage, so those values are intentionally not guessed. Confirm the complete number, nameplate output, pulley, regulator terminals, mounting and machine serial range before ordering.

Product Type: Alternator group
Voltage and Amperage: Confirm physical nameplate
Pulley: Compare with original
Regulator and Mount: Compare with original

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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 Equipment Part Number	Official Cat alternator reference	125-2994
Owned-Source Related Number - Verify Configuration	Not asserted as direct interchange	10R-7560
Internal Folder Shorthand	Not an OEM part number	13-E315D

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

125-2994

Related assembly

10R-7560

Other documented relationship

13-E315D

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

Product summary

Alternator Group

Category: Excavator Alternators
Catalog ID: 78186554
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

Manufacturer-listed excavators: Cat 311D LRR / 312D / 313D / 314D / 315D / 318D / 319D / 320 / 320B / 320C
Fitment limitation: Confirm number, output, pulley, terminals, mount and 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 125-2994

Which machines use 125-2994?

Recorded compatible model references include Manufacturer-listed excavators: Cat 311D LRR / 312D / 313D / 314D / 315D / 318D / 319D / 320 / 320B / 320C, Fitment limitation: Confirm number, output, pulley, terminals, mount and serial range. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 125-2994?

Related assembly numbers (not direct interchanges): 10R-7560.

How do I confirm 125-2994 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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