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Excavator Spare Parts

22B-54-28731 Wiper Motor for Komatsu PC78US PC88MR PC138US PC228US

Name: 22B-54-28731 Wiper Motor for Komatsu PC78US PC88MR PC138US PC228US
Brand: EexcavaStart
SKU: 22B-54-28731

OEM / reference22B-54-28731

SpecificationCab Wiper Motor

Catalog ID51280754

Cab wiper motor identified by Komatsu part number 22B-54-28731. Komatsu's parts site confirms the exact wiper-motor identity, and independent usage data associates the number with PC78US, PC88MR, PC138US and PC228US excavator families. Four owned photographs show one matching motor, linkage and harness configuration. Confirm machine serial and connector before ordering.

Fitment status: Verified · Checked 2026-08-01

Product Type: Cab wiper motor assembly
Supply Scope: Motor, linkage and attached harness shown
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Komatsu wiper motor	22B-54-28731
Formatted Alias	Search format without hyphens	22B5428731
Related Earlier Version	Serial-dependent; not asserted direct interchange	22B-54-28730

Fitment data verified. Exact-reference evidence is retained in the protected product audit record · Checked 2026-08-01.

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

22B-54-28731

Formatting alias

22B5428731

Related assembly

22B-54-28730

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

Product summary

Cab Wiper Motor

Category: Excavator Spare Parts
Catalog ID: 51280754
Photo views: 4

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

2 model references

Komatsu excavators: PC78US / PC78UU / PC88MR / PC138US / PC138USLC / PC228US / PC228USLC
Fitment limitation: Confirm machine serial, connector, linkage and mounting points

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 22B-54-28731

Which machines use 22B-54-28731?

Recorded compatible model references include Komatsu excavators: PC78US / PC78UU / PC88MR / PC138US / PC138USLC / PC228US / PC228USLC, Fitment limitation: Confirm machine serial, connector, linkage and mounting points. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 22B-54-28731?

Formatting aliases for the same number: 22B5428731. Related assembly numbers (not direct interchanges): 22B-54-28730.

How do I confirm 22B-54-28731 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. 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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