Excavator
4 photosCaterpillar · Excavators
CAT 320 Medium Excavator
The CAT 320 has an operating weight of 49,600 lb and a 172 hp engine, with a maximum dig depth of 22.3 ft.
Updated October 2026
172 HP49,600 lbsMedium ClassEst. $85,000 – $185,000
How much is a used CAT 320 worth?
HeavyDutyYard estimates a used CAT 320 at $85,000–$185,000 (our estimate, not yet checked against recent sales).
HeavyDutyYard estimate
$85,000–$185,000
USD
Not yet checked against recent sales. Year, hours and condition decide where a unit lands.
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8 photosAbout the CAT 320 Medium Excavator
The CAT 320 Medium Excavator is a mid-size excavator. Versions you'll see on the used market include the 320C, 320D, 320E, 320F.
Owners mostly put it to work on general excavation, trenching, demolition.
Specifications
Engine & Power
- Engine
- Cat C4.4
- Horsepower
- 172 HP
- Fuel Tank
- 91.1 gal
Dimensions & Weight
- Operating Weight
- 49600 lbs
Performance
- Max Dig Depth
- 22.3 ft
- Max Reach
- 32.5 ft
- Bucket Capacity
- 1.56 cu yd
- Tail Swing
- Standard
Configuration
- Size Class
- Medium
Weight, power, and capacity figures checked October 2026 against 320 (next gen, Tier 4/Stage V). Older or newer generations of this model may differ.
Model Generations
320C320D320E320F320 Next Gen
Common Applications
- General excavation
- Trenching
- Demolition
Popular Attachments
Hydraulic ThumbQuick CouplerHammer
Common Configurations
Standard BoomLong Reach
How It Compares
| Spec | CAT 320 Medium Excavator | Komatsu PC200-8 Medium Excavator | John Deere 200G Medium Excavator | Volvo EC200 Medium Excavator |
|---|---|---|---|---|
| Engine HP | 172 HP | 148 HP | 146 HP | 154 HP |
| Op. Weight | 49,600 lbs | 44,114 lbs | 44,030 lbs | 48,500 lbs |
| Max Dig Depth | 22.3 | 20.8 | 23.17 | 21.3 |
| Est. Price Low | $85,000 | $17,000 | — | — |
| Est. Price High | $185,000 | $77,000 | — | — |
Against the Komatsu PC200, the CAT 320 is 5,486 lb heavier, has 24 more hp and has 1.5 ft more max dig depth.
Against the John Deere 200G, the CAT 320 is 5,570 lb heavier, has 26 more hp and has 0.87 ft less max dig depth.
Against the Volvo EC200, the CAT 320 is 1,100 lb heavier, has 18 more hp and has 1 ft more max dig depth.
Frequently Asked Questions
How much does the CAT 320 weigh?
The CAT 320 has an operating weight of 49,600 lb and a 172 hp engine. Cab, counterweight, tracks, and attachments can move the real weight of a given unit up or down from this spec figure, so check the serial plate or the OEM spec sheet for the exact build before booking transport.
How much is a used CAT 320 worth?
HeavyDutyYard estimates a used CAT 320 at $85,000–$185,000 (our estimate, not yet checked against recent sales).
Where can I sell my CAT 320?
Send HeavyDutyYard the year, hours, and condition of your CAT 320 and we reply within one business day. We make cash offers on some machines; otherwise we list yours free on the HeavyDutyYard marketplace, where we review every listing and screen buyer messages before they reach you. Transport is coordinated when we buy.
What is the CAT 320 used for?
The CAT 320 Medium Excavator is commonly used for general excavation, trenching, demolition.