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: The arm that extends from the machine’s body to the working area.
Stick (or Dipper Arm): Attached to the boom, it allows for digging and extending deeper into the ground.
Bucket: Used for digging, trenching, and lifting materials.
Cab: Where the operator sits and controls the machine.
Undercarriage: Includes the tracks, track rollers, and idlers.
Engine: Usually a diesel-powered unit that supports hydraulic and mechanical systems.
Hydraulic System: Requires regular maintenance to prevent leaks and breakdowns.
Swing Drive: Important for maneuvering on tight sites.
Counterweight: Balances the machine during operation.
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
Buying a damaged or used excavator for parts is a cost-effective strategy.
Benefits of using excavators for parts:
Cost-effective solution vs. buying new parts.
Promotes sustainability in the construction industry.
Older excavators may not have parts in production.
Provides multiple components from a single purchase.
Rather than buying new, sourcing used parts from similar machines can extend equipment life.
Popular Excavator Brands and Their Parts
Hitachi Excavator Parts
Hitachi is known for durable and reliable excavators.
Common Hitachi excavator parts include:
Hydraulic pumps and valves
Track chains and rollers
Final drives
Swing motors
Boom and stick cylinders
Plenty of salvage yards and resellers offer used Hitachi excavators for parts.
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
Known for innovation, Takeuchi replacement parts support longer operating life.
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
Volvo machines often run for decades with proper parts and service.
CAT Excavator Parts / Caterpillar Excavator Parts
Caterpillar, or CAT, is a leader in heavy machinery worldwide.
High-demand Cat excavator parts include:
Undercarriage volvo excavator parts assemblies
Swing gearboxes
Turbochargers
Pins and bushings
Electrical components
CAT excavators are often the backbone of construction fleets.
Where to Buy Excavator Parts Safely
Buying excavator parts—new or used—requires attention to detail.
Tips for buying parts excavator owners need:
Always verify the model and serial number before buying.
Trusted sellers offer guarantees.
Visual checks can reveal wear or defects.
Compare OEM vs. aftermarket options.
Build a relationship with reputable suppliers.
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
Keep Your Excavator Running Longer
Avoid unnecessary wear with good operating practices.
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.
Conclusion
No matter the brand—Hitachi, Takeuchi, Volvo, or Caterpillar—keeping parts in top shape is key.
From swing motors to tracks and buckets, every part counts when maximizing uptime and productivity.
Find the right parts excavator owners trust—and keep digging strong.