Heavy equipment parts specialists
Komatsu Parts
Shop Komatsu parts online for excavators, bulldozers, wheel loaders and articulated dump trucks. Search by part number, confirm fitment and look for the WQ Certified badge on selected replacement parts.
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WQ Certified SelectionParts are reviewed for fit, source, application, and practical replacement value.
Heavy Equipment FocusBuilt around Komatsu machines, part numbers, systems, and real-world repair needs.
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Expert Komatsu Part SupportOpen chat for help with a Komatsu part number, model, serial number, or photo.
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Popular Komatsu Parts
Shop frequently ordered replacement parts for Komatsu equipment. Check product details and look for the WQ Certified badge on qualifying parts.
Newly Added Komatsu Parts
Review recently added Komatsu replacement parts, then confirm the exact part number, model, serial range, and component location before ordering.
Heavy Equipment Parts Resources
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Jul 17, 2026
Aftermarket Komatsu Parts and Uptime: Why Quality Replacement Parts Belong in Your Fleet Plan
The real decision is not OEM versus aftermarket. It is proven quality versus uncertain quality. Learn how dependable aftermarket Komatsu parts can reduce costs,...
Jun 9, 2026
Using a Hydraulic Breaker Without Destroying Your Excavator
A hydraulic breaker can make an excavator very profitable, but it does that at the expense of machine wear. Every contractor who adds a...
Jun 5, 2026
Excavator Daily Walk-Around Checklist: Prevent Downtime Before Startup
A daily excavator walk-around checklist helps operators, contractors, and fleet managers catch small problems before they become downtime. Before startup, the operator should check...
WQ Certified™
Know which products are WQ Certified
WQ Certified identifies selected aftermarket Komatsu parts that WQC Parts has reviewed against a documented fit and quality standard. The mark is applied only to qualifying products, so buyers can distinguish reviewed replacement parts from standard catalog options.
Our review focuses on the practical details that matter when repairing heavy equipment:
- Part-number and application information intended to support accurate Komatsu parts identification and fitment confirmation.
- Source, construction, finish, and replacement value reviewed for the intended heavy-equipment application.
- A visible WQ Certified badge on qualifying product cards and product pages—never an assumption applied to the entire catalog.
When choosing pins and bushings, hydraulic parts or engine components, look for the WQ Certified mark. Confirm the original part number, machine model, serial range and component location before ordering.
Need help identifying a Komatsu part?
Need to confirm the right replacement before ordering? Send us the original part number, machine model, serial number or serial range, component location and clear photos. Our team can help identify the part and review fitment details. Identification assistance is currently limited to Komatsu equipment.
Built better. Lasts longer.
Why Contractors and Fleets Choose WQC Parts
WQC Parts supplies Komatsu replacement parts for contractors, repair shops, fleet managers and equipment owners. Shop by part number and get help confirming the right replacement for your repair.
Browse Komatsu excavator parts, wheel loader parts and bulldozer parts, along with engine components, hydraulic parts, pins and bushings. Check each product’s application details against your machine before ordering.
Built Better. Lasts Longer.
WQ Certified products are reviewed for fit, source, construction and replacement value. Look for the badge on qualifying parts when comparing options for your repair.
A matching part number is the starting point. Confirm the machine model, serial range and component location so the replacement suits your application.
Built for Contractors, Fleets, and Repair Professionals
Whether you maintain one machine or a fleet, find parts for planned maintenance and repairs in one catalog. Review product details, pricing and availability as you prepare your order.
Know your part number? Use the search to find matching products. If you are unsure, contact our team with your machine details and photos before purchasing.
Find the Right Parts for Your Next Repair
Explore equipment and parts categories to narrow your selection, from excavator components to engine and hydraulic parts. Use our technical resources when you need more background on identification or maintenance.
Browse the catalog to start your order, or contact WQC Parts for help choosing a replacement.