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Excavator Alternators

IX126 24V 28.5V Alternator Voltage Regulator for 63307466 63377466

OEM / referenceIX126
Specification24V Alternator Voltage Regulator, 28.5V Set Point
Catalog ID77259085

24-volt alternator voltage regulator with a 28.5-volt set point, identified by Transpo/WAI number IX126. Manufacturer and cross-reference records support Mobiletron VR-F154B and AS-PL ARE4018 and identify 63307466 and 63377466 as compatible alternator-unit numbers. This is a regulator component, not a complete alternator.

Fitment status: Verified · Checked 2026-07-28
Product Type
Alternator Voltage Regulator
Product Brand
EexcavaStart
Electrical System
24V
Voltage Set Point
28.5V
Circuit
A-circuit
Signal Terminals
L-W
Protection
Short-circuit protection
Mounting
Two-bolt, 68 mm hole spacing

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

Part-number relationships

RelationshipReference familyNumber
Primary Regulator Part NumberTranspo/WAI regulator numberIX126
Manufacturer Cross-ReferenceMobiletron voltage regulatorVR-F154B
Direct Regulator Cross-ReferenceAS-PL regulator numberARE4018
Fits Alternator NumberMarelli alternator unit; not a regulator interchange63307466
Fits Alternator NumberMarelli alternator unit; not a regulator interchange63377466
Fits Alternator NumberDenso alternator unit; not a regulator interchange102211-8140
Fits Alternator NumberDenso alternator unit; not a regulator interchange102211-8150

Evidence record

Source
Exact-reference evidence retained for internal audit
Evidence grade
multi-source-supported
Checked
2026-07-28

Source URLs, catalog files and local evidence paths are stored in the protected product audit record and are not public outbound links.

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
  • IX126
Manufacturer number
  • VR-F154B
Direct interchange
  • ARE4018
Other documented relationship
  • 63307466
  • 63377466
  • 102211-8140
  • 102211-8150

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

Product summary

24V Alternator Voltage Regulator, 28.5V Set Point

Category
Excavator Alternators
Catalog ID
77259085
Photo views
6

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

7 model references

  • Alternator family: Marelli 63307465 / 63307466
  • Alternator family: Marelli 63377465 / 63377466
  • Alternator family: Denso 102211-8140 / 102211-8150
  • Engine example: Caterpillar 3056E
  • Machine example: Caterpillar M322C
  • Machine example: Terex SKL873
  • Fitment limitation: Confirm IX126 or VR-F154B, 24V system, 28.5V set point, L-W terminals and mounting footprint

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 IX126

Which machines use IX126?

Recorded compatible model references include Alternator family: Marelli 63307465 / 63307466, Alternator family: Marelli 63377465 / 63377466, Alternator family: Denso 102211-8140 / 102211-8150, Engine example: Caterpillar 3056E, Machine example: Caterpillar M322C, Machine example: Terex SKL873, Fitment limitation: Confirm IX126 or VR-F154B, 24V system, 28.5V set point, L-W terminals and mounting footprint. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for IX126?

Documented direct interchanges: ARE4018. Manufacturer number: VR-F154B.

How do I confirm IX126 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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