Parts Sourcing Guide

Komatsu Parts Management

Parts management and sourcing for Komatsu heavy construction, mining, and quarry equipment.

About Komatsu equipment

Komatsu Ltd. is a Japanese heavy equipment manufacturer — the world's second-largest after Caterpillar. Their lineup spans hydraulic excavators, wheel loaders, crawler dozers, articulated trucks, and mining-scale haul trucks. Komatsu equipment is particularly prevalent in mining, quarrying, and heavy civil construction operations.

Equipment types

Hydraulic excavatorsWheel loadersCrawler dozersArticulated trucksRigid-frame haul trucksMotor gradersMining shovels & trucks

Common Komatsu models

Parts sourcing guidance applies across Komatsu's active product lineup. These are the models we see most often in customer fleets.

PC200

Hydraulic excavator

PC210

Hydraulic excavator

PC290

Hydraulic excavator

PC360

Hydraulic excavator

WA320

Wheel loader

WA380

Wheel loader

D65

Crawler dozer

D155

Crawler dozer

HM300

Articulated truck

Official Komatsu parts catalog & diagrams

For authoritative OEM part numbers and exploded-view diagrams, refer to Komatsu's official parts catalog. PartsIQ sources parts across your supplier network — we don't replace the OEM catalog, we help you source against it.

Open Komatsu catalog

OEM vs aftermarket for Komatsu parts

Honest guidance. Both channels have a place — the question is which fits which part.

Prefer OEM for…

SAA engine internals, KOMTRAX telematics, Tier 4 emissions systems, HPV-series hydraulic main pumps, swing motors, and warranty-period machines. Komatsu Reman offers OEM-quality at reduced cost for many rebuilt components.

Aftermarket is commonly used for…

Filters, undercarriage components (the Komatsu undercarriage aftermarket is particularly mature), Ground Engaging Tools, hoses, belts, and general wear parts on pre-Tier-4 machines.

Sourcing challenges for Komatsu

Patterns we see across teams running Komatsu equipment.

  • Komatsu SAA-series engines have unique diagnostic tools — aftermarket support is narrower for engine internals than for CAT equivalents
  • Komatsu Reman program competes with OEM — similar to CAT Reman, rebuilt components at reduced cost
  • Undercarriage is high-wear and high-volume, especially on mining-scale dozers and excavators
  • Tier 4 Final emissions components typically dealer-only
  • Pre-Tier-4 Komatsu machines have a mature aftermarket ecosystem, especially for PC-series excavators
  • KOMTRAX telematics modules are proprietary — servicing is authorized-dealer-only

How PartsIQ helps source Komatsu parts

PartsIQ is a parts procurement platform — not a Komatsu dealer. We source across your verified supplier network and use AI to collect quotes faster.

AI voice agent

Calls Komatsu dealers and aftermarket suppliers in parallel to collect quotes.

AI parts search

Find parts by description, part number, or equipment model across multiple databases.

Quote comparison

Side-by-side quotes from multiple suppliers with pricing, lead time, and availability.

Frequently asked questions about Komatsu parts

Where can I find the official Komatsu parts catalog?

The Komatsu parts catalog is available through komatsu.com and authorized dealers. You can search by model and serial number for current parts and diagrams. Komatsu part numbers are globally standardized, though regional availability and pricing vary. PartsIQ is not affiliated with Komatsu Ltd.

What is Komatsu Reman and how does it compare to OEM?

Komatsu Reman is Komatsu's factory-remanufactured parts program — rebuilt OEM components (engines, pumps, turbos) that meet OEM specifications at reduced cost. For most rebuild scenarios, Reman offers an excellent balance of reliability and price. Reman parts carry the OEM quality warranty and are considered OEM for most service purposes.

Are Komatsu aftermarket parts reliable?

Quality varies by category. Filters and undercarriage components have mature, validated aftermarket ecosystems. GET (Ground Engaging Tools) aftermarket is well-developed. Hydraulic main pumps, electronic control modules, and Tier 4 emissions parts are higher risk outside OEM or Komatsu Reman — verify supplier reputation carefully before ordering critical components.

How does PartsIQ source Komatsu parts?

PartsIQ aggregates sourcing across Komatsu dealers, the Komatsu Reman program, and aftermarket suppliers in one workflow. Our AI voice agent can call multiple dealers simultaneously to compare OEM, Reman, and aftermarket pricing — particularly valuable for undercarriage and wear parts where variation across sources is significant.

Explore More Solutions

PartsIQ offers a complete suite of tools for parts inventory management, procurement, and supplier communication.

Parts Inventory Management

All-in-one platform with AI search, voice agent, and order tracking.

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Parts Inventory Tracking

Real-time tracking with automated reorder alerts and AI forecasting.

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AI Parts Search Engine

Semantic search across 3 databases with 95% match accuracy.

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Supplier Management

Voice agent automation, email quoting, and price comparison.

Learn more

Ready to streamline Komatsu parts sourcing?

See how PartsIQ's AI voice agent calls your Komatsu suppliers, compares quotes side-by-side, and cuts sourcing time from hours to minutes. 15-minute walkthrough.

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Disclaimer: PartsIQ is not affiliated with, sponsored by, or endorsed by Komatsu Ltd.. All trademarks, logos, brand names, model designations, and part numbers referenced on this page are the property of their respective owners and are used here solely to describe equipment compatibility and procurement workflows under nominative fair use. PartsIQ is an independent parts procurement platform and does not sell OEM parts directly.