Excavators are essential machines in construction, mining, and demolition projects. But like any heavy-duty equipment, these machines need regular maintenance and replacement parts to function properly.
In this guide, we’ll explore the key components that make up an excavator, highlight popular brands like Hitachi, Takeuchi, Volvo, and Caterpillar (Cat), and explain how to find the best excavator for parts.
What Are the Parts of an Excavator?
Excavators have multiple systems that work together for performance and efficiency. Here are the core parts of an excavator:
Boom: Responsible for reaching and lifting, the boom is a vital hydraulic arm.
Stick (or Dipper Arm): Controls the distance between the machine and the bucket.
Bucket: Comes in different sizes for various tasks.
Cab: Equipped with joysticks, screens, and safety features.
Undercarriage: Provides mobility on rugged terrain.
Engine: Usually a diesel-powered unit that supports hydraulic and mechanical systems.
Hydraulic System: Drives the boom, stick, bucket, and other attachments.
Swing Drive: Allows the excavator to rotate 360 degrees.
Counterweight: Ensures safety and stability when lifting heavy loads.
Each of these components can wear out or become damaged with time, requiring replacement. That’s when contractors look for excavator for parts options to keep their machines running.
Rebuilding Machines Using Excavators for Parts
An excavator for parts can supply hard-to-find or discontinued components.
Benefits of using excavators for parts:
Cost-effective solution vs. buying new parts.
Environmentally friendly by recycling old machinery.
Older excavators may not have parts in production.
Provides multiple components from a single purchase.
Many construction companies buy excavators for parts to maintain their fleet without overspending.
Best-Selling Excavator Parts by Brand
Hitachi Excavator Parts
Globally recognized, Hitachi parts are in high demand.
Common Hitachi excavator parts include:
Hydraulic pumps and valves
Track chains and rollers
Final drives
Swing motors
Boom and stick cylinders
Using high-quality Hitachi parts ensures optimal performance and longevity.
Takeuchi Excavator Parts
Takeuchi specializes in compact excavators and mini diggers.
Popular Takeuchi excavator parts:
Rubber tracks
Drive sprockets
Air filters
Control valves
Swing bearings
Takeuchi machines are popular on urban job sites, so parts need to be compact and precise.
Volvo Excavator Parts
Volvo excavators are renowned for comfort, fuel efficiency, and durability.
Typical Volvo excavator parts:
Engine components
Fuel systems
Cab interiors and operator controls
Hydraulic oil filters
Attachments and buckets
Whether you're using a wheeled or tracked Volvo excavator, matching parts is key to excavators parts performance.
CAT Excavator Parts / Caterpillar Excavator Parts
Caterpillar, or CAT, is a leader in heavy machinery worldwide.
High-demand Cat excavator parts include:
Undercarriage assemblies
Swing gearboxes
Turbochargers
Pins and bushings
Electrical components
Their global presence makes it easy to find new or used CAT excavators for parts.
Finding the Right Parts Excavator Dealers and Sellers
Don’t risk downtime by purchasing low-quality or incompatible parts.
Tips for buying parts excavator owners need:
Ensure parts are compatible with your exact excavator model.
Ask for warranties or return policies on used parts.
Request photos or inspection reports.
OEM (original equipment manufacturer) parts guarantee fit, while aftermarket may be cheaper.
Long-term suppliers often offer better prices and priority access.
Common platforms to find excavator for parts:
Online marketplaces (eBay, MachineryTrader)
Construction equipment auctions
Heavy machinery salvage yards
Manufacturer-certified dealers
Local and international part resellers
Maintenance Tips to Extend Excavator Part Life
Caring for your excavator regularly helps avoid sudden breakdowns.
Best practices:
Check hoses, tracks, and cylinders every shift.
This reduces friction and prolongs bushing life.
Hydraulic oil, engine oil, and air filters are essential.
Avoid exposure to extreme weather conditions.
Rough usage often leads to early part failure.
Wrap-Up: Excavator Parts and Maintenance
Every excavator relies on high-quality parts to deliver consistent performance.
If you're in the market for excavator parts, be strategic: compare brands, check compatibility, and maintain your machine regularly.
Find the right parts excavator owners trust—and keep digging strong.