Komatsu Parts
WQC Parts organizes aftermarket Komatsu parts around how buyers actually search: by machine family, model, system, serial range, component group, and exact part number. This page is the main gateway for WQ Certified Komatsu replacement parts and should be used as the starting point before moving into deeper machine and system hubs.
Instead of forcing every buyer into one large collection, this hub separates Komatsu parts into practical paths. Use the equipment-family links when you know the machine model, the system links when you know the repair area, and the collection links when you already know the part number or want to browse currently listed items.
Start by Equipment Family
Komatsu Excavator Parts
Start with PC-series excavators, then narrow to model families, pins and bushings, service kits, hydraulic parts, engine parts, and serial-aware collections.
Komatsu Wheel Loader Parts
Navigate WA-series wheel loader parts by machine family, pins and bushings, service kits, hydraulic parts, engine parts, filters, and listed products.
Komatsu Bulldozer Parts
Find D-series dozer paths for undercarriage, blade, hydraulic, engine, filter, service kit, and listed replacement parts.
Komatsu Motor Grader Parts
Use this path for grader circle, blade, hydraulic, engine, and service-kit support.
Komatsu Dump Truck Parts
Navigate haul truck brake, suspension, drivetrain, engine, service-kit, and product paths.
Komatsu Log Loader Parts
Use this path for forestry and log-loader model families where fitment depends heavily on arrangement and serial range.
Shop by System or Repair Area
Komatsu Pins & Bushings
High-wear pivot parts organized by equipment family, model, series, serial range, and workgroup where data supports it.
Komatsu Service Kits
Model-specific seal and service-kit paths with direct product links where available.
Komatsu Hydraulic Parts
Hydraulic pumps, cylinders, valves, hoses, motors, swivels, and seal kit paths.
Komatsu Engine Parts
Cooling, fuel, filters, belts, gaskets, overhaul-related parts, and engine-support categories.
Komatsu Pumps
Pump product categories and pump research guides for hydraulic, water, oil, fuel, gear, and main pump identification.
Komatsu Undercarriage Parts
Track rollers, idlers, sprockets, recoil and track-adjuster product paths.
High-Value Model Family Hubs
These model hubs are not meant to be dead-end pages. Each should route buyers toward a specific product collection, a supported system hub, a serial-aware pins and bushings path, or a quote request when fitment needs confirmation.
PC200 / PC200LC Parts
Excavator model-family hub with collection, pins and bushings, service kits, and serial-aware paths.
PC300 / PC300LC Parts
Excavator model-family hub with pins and bushings, service-kit, and product collection paths.
PC400 / PC400LC Parts
Large excavator model-family hub with supported product and serial-aware navigation.
WA320 Parts
Wheel-loader model-family hub with available pins/bushings, service kits, and collection path.
WA380 Parts
Wheel-loader model-family hub for parts, service kits, pins, bushings, and listed products.
D65 Dozer Parts
Dozer model-family hub for supported parts, service kits, and broader D-series navigation.
Komatsu Product Collections
Use these Komatsu product collections when you already know the component family or part type. These links keep broad collections reachable without crowding the main menu.
- Komatsu Engine Parts
- Komatsu Hydraulic Parts
- Komatsu Seals & Service Kits
- Komatsu Pins & Bushings
- Komatsu Service Kits
- Komatsu Filters
- Komatsu Electrical System
- Komatsu Undercarriage
- Komatsu Pumps
- Komatsu Gaskets
- Komatsu Hoses
- Komatsu Fuel Injection
- Komatsu Oil Seals
- Komatsu Floating Seals
- Komatsu G.E.T.
- Komatsu Miscellaneous
Before Ordering: Confirm the Machine and Serial Range
Komatsu parts can change by series, serial number break, regional arrangement, attachment package, and installed component group. Use this hub to narrow the path, but confirm the final part number against the machine serial number, parts book reference, or existing part stamping before ordering.
- Best information to provide: machine model, serial number, current part number, component location, and a photo if available.
- For pins, bushings, service kits, pumps, hydraulic parts, and engine components, similar descriptions may still represent different parts.
- When you are unsure, use the quote path instead of guessing from a broad description.