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ToggleThe CAT 320 is one of Caterpillar’s most popular medium excavators, widely used for earthmoving, trenching, roadwork, demolition, utility projects, and general construction. Because it has strong resale demand, a used CAT 320 often holds value better than many competing machines in the same size class.

CAT 320 Used Excavator Price Overview
The price of a used CAT 320 excavator can vary greatly depending on model year, working hours, condition, configuration, maintenance history, and attachments. In general, older units with higher hours are more affordable, while newer low-hour machines with advanced features and good service records are priced higher.
A general used CAT 320 price range is:
| Machine Condition / Age | Estimated Price Range |
|---|---|
| Older CAT 320 models with higher hours | $40,000-$85,000 |
| Mid-age machines in working condition | $85,000-$150,000 |
| Newer low-hour CAT 320 excavators | $150,000-$250,000+ |
| Premium units with attachments and excellent condition | $200,000-$300,000+ |
These prices are only general references. The final cost depends on the actual machine condition, configuration, location, and inspection results. A lower price does not always mean a better deal, especially if the excavator needs major repairs after purchase.
Main Factors That Affect Used CAT 320 Price
1. Model Year
Newer CAT 320 excavators usually cost more because they may offer better fuel efficiency, improved operator comfort, updated hydraulic systems, and advanced control features. Older models are often cheaper and may be easier to maintain, but they require more careful inspection.
2. Operating Hours
Working hours are one of the most important pricing factors. A machine with lower hours usually has more remaining service life, but maintenance quality is just as important.
General reference:
| Operating Hours | Condition Expectation |
|---|---|
| Under 3,000 hours | Higher value, usually more attractive |
| 3,000-6,000 hours | Good range if properly maintained |
| 6,000-10,000 hours | Inspection becomes very important |
| Over 10,000 hours | Lower price, higher repair risk |
However, hours should not be judged alone. A well-maintained high-hour machine can be more reliable than a low-hour machine with poor service history.
3. Undercarriage Condition
The undercarriage is expensive to repair or replace. Before buying a used CAT 320, check the track chains, rollers, sprockets, idlers, track shoes, and tension system. Heavy undercarriage wear should be reflected in the final price.
4. Hydraulic System
The hydraulic system directly affects digging power, lifting performance, swing speed, and overall productivity. Buyers should check for oil leaks, weak movement, abnormal noise, overheating, slow response, and hydraulic pump issues.
5. Engine Performance
Start the machine when cold if possible. Check for excessive smoke, unstable idle, oil leaks, coolant leaks, abnormal vibration, and warning codes. A healthy engine is essential for long-term reliability.
6. Attachments and Configuration
A used CAT 320 equipped with a hydraulic thumb, quick coupler, breaker pipeline, multiple buckets, or other useful attachments may have a higher value. However, buyers should only pay extra for attachments that match their actual job needs.
7. Maintenance Records
Complete service records can increase buyer confidence. Records for oil changes, hydraulic service, filter replacement, undercarriage repair, engine maintenance, and previous inspections help prove that the machine has been properly cared for.

Buying Tips for a Used CAT 320 Excavator
1. Inspect the Machine Carefully
Do not rely only on photos or videos. If possible, inspect the excavator in person or arrange a professional inspection. Pay attention to leaks, cracks, welding marks, loose pins, worn bushings, and abnormal operating sounds.
2. Test the Excavator Under Load
A machine may look good while parked, but real performance can only be checked during operation. Test the boom, arm, bucket, swing, travel motors, hydraulic response, and attachment lines under working conditions.
3. Check the Undercarriage Wear Percentage
Ask for detailed undercarriage photos or measurements. If the undercarriage is near the end of its service life, calculate the repair cost before making an offer.
4. Compare Total Cost, Not Just Price
The cheapest machine is not always the best deal. Buyers should also consider shipping, import duty, repair cost, parts availability, maintenance needs, and expected working life.
5. Choose a Reliable Used Equipment Supplier
Buying from a professional used machinery supplier can reduce risk. A reliable supplier should provide clear machine information, real photos and videos, inspection support, transparent pricing, and after-sales assistance.
Common Mistakes to Avoid
Many buyers focus only on the purchase price and ignore hidden costs. This can lead to unexpected repair bills after delivery.
Avoid these mistakes:
- Buying only based on the lowest price
- Ignoring undercarriage wear
- Skipping hydraulic system inspection
- Not checking service history
- Overpaying for unnecessary attachments
- Forgetting transport and repair costs
- Making payment before confirming machine details
A careful buying process can help you avoid costly problems and choose a machine that is ready for work.

Is a Used CAT 320 Worth Buying?
Yes, a used CAT 320 excavator can be a smart investment for contractors who need strong performance at a lower cost than buying new. It offers good productivity, wide parts availability, strong resale value, and proven reliability in many working conditions.
Final Buying Checklist
Before buying a used CAT 320 excavator, confirm the following:
- Model year
- Operating hours
- Engine condition
- Hydraulic system performance
- Undercarriage wear level
- Boom, arm, and bucket condition
- Cab and control system
- Attachment condition
- Maintenance records
- Transport cost
- After-sales support
- Total ownership cost
Conclusion
Buying a used CAT 320 excavator is a smart choice if you need a reliable medium excavator with strong working performance and long-term value. The most important point is not to look only at the price, but to evaluate the complete condition of the machine.
At Roadsky, we help customers select used excavators based on actual machine condition, budget, application, and export requirements. Whether you need a CAT 320 for earthmoving, road construction, trenching, or general contracting work, our team can provide machine details, photos, videos, and practical purchasing support before you make a decision.
Contact Roadsky to check available used CAT excavators and get a quotation based on your working needs.














