3 product photos · Select a thumbnail to change the main view.

Excavator Engine Parts

6150-31-6120 Front Gear Train Bushing for Komatsu 6D125 6D125E SAA6D125E

Name: 6150-31-6120 Front Gear Train Bushing for Komatsu 6D125 6D125E SAA6D125E
Brand: EexcavaStart
SKU: 6150-31-6120

OEM / reference6150-31-6120

SpecificationFront Gear Train Bushing

Catalog ID63226143

Front gear-train/idler-gear bushing identified by Komatsu part number 6150-31-6120. Komatsu's parts page identifies the item as an engine bushing, while bushing catalogs place it in the front gear train for 6D125, 6D125E and SAA6D125E engine families. Confirm outer diameter, inner diameter, width, oil-hole/groove arrangement and mating gear/shaft before installation.

Fitment status: Verified · Checked 2026-07-28

Product Type: Front Gear Train Bushing
Product Brand: EexcavaStart
Installation Area: Front gear train / idler gear
Compatible Engine Family: Komatsu 6D125 / 6D125E / SAA6D125E
Condition: New replacement part

Send email inquiry Ask on WhatsApp Return to catalog

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	Komatsu front gear-train bushing	6150-31-6120
Normalized Search Alias	Formatting-only alias; not a separate interchange	6150316120

Evidence record

Source: Exact-reference evidence retained for internal audit
Evidence grade: manufacturer-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

6150-31-6120

Formatting alias

6150316120

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

Product summary

Front Gear Train Bushing

Category: Excavator Engine Parts
Catalog ID: 63226143
Photo views: 3

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

4 model references

Engine family: Komatsu 6D125
Engine family: Komatsu 6D125E
Engine family: Komatsu SAA6D125E
Fitment limitation: Confirm OD, ID, width, oil-hole/groove arrangement and the mating gear/shaft

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 6150-31-6120

Which machines use 6150-31-6120?

Recorded compatible model references include Engine family: Komatsu 6D125, Engine family: Komatsu 6D125E, Engine family: Komatsu SAA6D125E, Fitment limitation: Confirm OD, ID, width, oil-hole/groove arrangement and the mating gear/shaft. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 6150-31-6120?

Formatting aliases for the same number: 6150316120.

How do I confirm 6150-31-6120 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.

Browse this category