Excavator Engine Parts

6151-12-3100 Injector Assembly for Komatsu S6D125E PC400 PC450

Q: What numbers are documented for 6151-12-3100?

Primary Manufacturer Part Number: 6151-12-3100. Same-number Formatting Alias: 6151123100. Related Injector - Verify Engine Arrangement: 6151-12-3200. Related Injector - Verify Engine Arrangement: 6151-12-3400. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 6151-12-3100 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 / reference6151-12-3100

SpecificationFuel Injector Assembly

Catalog ID79882743

Product Type: Fuel Injector Assembly / Nozzle Holder
Engine Context: Komatsu 6D125 / S6D125E family
Configuration Check: Nozzle holder, connections and engine arrangement
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.

Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.

Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Part Number	Official Komatsu injector reference	6151-12-3100
Same-number Formatting Alias	Search alias only	6151123100
Related Injector - Verify Engine Arrangement	Different catalog family member	6151-12-3200
Related Injector - Verify Engine Arrangement	Different catalog family member	6151-12-3400

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

6151-12-3100

Formatting alias

6151123100

Related assembly

6151-12-3200
6151-12-3400

Formatting aliases are the same number written differently. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.

Product summary

Fuel Injector Assembly

Category: Excavator Engine Parts
Catalog ID: 79882743
Photo views: 1

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

Engine family: Komatsu 6D125 / S6D125E
Representative equipment: Komatsu PC400 / PC450 excavator families

Fitment / evidence notes

Fitment limitation: Confirm number, injector configuration, engine arrangement 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 6151-12-3100

Which machines use 6151-12-3100?

Recorded compatible model references include Engine family: Komatsu 6D125 / S6D125E, Representative equipment: Komatsu PC400 / PC450 excavator families. Recorded fitment/evidence notes: Fitment limitation: Confirm number, injector configuration, engine arrangement and serial range. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 6151-12-3100?

Formatting aliases for the same number: 6151123100. Related assembly numbers (not direct interchanges): 6151-12-3200, 6151-12-3400.

How do I confirm 6151-12-3100 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 verified references from the same system.

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