From digging trenches to lifting heavy loads, excavators perform a wide range of tasks. Understanding the key components and sourcing the right parts can save time and reduce costly downtime.
In this guide, we’ll explore the major parts of an excavator, highlight popular brands like Hitachi, Takeuchi, Volvo, and Caterpillar (Cat), and explain how to find the best excavator for parts.
Key Excavator Components Explained
Excavators have multiple systems that work together for performance and efficiency. Here are the main parts of an excavator:
Boom: It’s the part that gives the excavator its extended reach.
Stick (or Dipper Arm): Offers flexibility and precision in digging.
Bucket: One of the most replaced parts excavator owners need.
Cab: Modern cabs offer comfort and protection.
Undercarriage: Provides mobility on rugged terrain.
Engine: Powers the entire machine.
Hydraulic System: Drives the boom, stick, bucket, and other attachments.
Swing Drive: Important for maneuvering on tight sites.
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.
Benefits of Purchasing 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.
Ideal for discontinued or rare models.
Useful when operating multiple machines of the same brand.
This method is especially popular in regions where new parts are expensive or unavailable.
Popular Excavator Brands and Their Parts
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
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 parts 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’s reputation means parts can sometimes be more expensive, but many quality aftermarket suppliers are available.
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
If you’re using Caterpillar machines, ensure you stick with trusted vendors to avoid copyright 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:
Perform daily inspections for leaks or wear.
Lubricate all moving joints regularly.
Change filters and fluids according to schedule.
Store equipment properly when not in use.
Train operators to use machines efficiently.
Final Thoughts
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.
Invest in quality, plan ahead, and keep your excavators running like new.