
Caterpillar · Excavators
CAT 303.5 Mini Excavator
The CAT 303.5 has an operating weight of 9,239 lb and a 23.6 hp engine, with a maximum dig depth of 10.2 ft.
Updated October 2026

How much is a used CAT 303.5 worth?
No price data yet. Get an offer for a real number.
No price data yet. Get an offer for a real number.
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About the CAT 303.5 Mini Excavator
The CAT 303.5 Mini Excavator is a compact excavator built from 2017 to today.
Owners mostly put it to work on utility, landscaping, small demolition.
Specifications
Engine & Power
- Engine
- Cat C1.1
- Horsepower
- 23.6 HP
- Fuel Tank
- 11.9 gal
Dimensions & Weight
- Operating Weight
- 9239 lbs
Performance
- Max Dig Depth
- 10.2 ft
- Max Reach
- 16.1 ft
- Bucket Capacity
- 0.13 cu yd
- Tail Swing
- Compact
Configuration
- Size Class
- Mini
- Years Produced
- 2017-present
Weight, power, and capacity figures checked October 2026 against 303.5 CR (current). Older or newer generations of this model may differ.
Model Generations
Common Applications
- Utility
- Landscaping
- Small demolition
Popular Attachments
Common Configurations
How It Compares
| Spec | CAT 303.5 Mini Excavator | Kubota KX033-4 Compact Excavator | Hitachi ZX50U-5N Compact Excavator |
|---|---|---|---|
| Engine HP | 23.6 HP | 23.2 HP | 36.8 HP |
| Op. Weight | 9,239 lbs | 7,616 lbs | 11,023 lbs |
| Max Dig Depth | 10.2 | 10.4 | 12.6 |
| Est. Price Low | — | — | $36,000 |
| Est. Price High | — | — | $88,000 |
Against the Kubota KX033, the CAT 303.5 is 1,623 lb heavier, has 0.4 more hp and has 0.2 ft less max dig depth.
Against the Hitachi ZX50U, the CAT 303.5 is 1,784 lb lighter, has 13.2 less hp and has 2.4 ft less max dig depth.
Frequently Asked Questions
How much does the CAT 303.5 weigh?
The CAT 303.5 has an operating weight of 9,239 lb and a 23.6 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 303.5 worth?
No price data yet. Get an offer for a real number.
Where can I sell my CAT 303.5?
Send HeavyDutyYard the year, hours, and condition of your CAT 303.5 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 303.5 used for?
The CAT 303.5 Mini Excavator is commonly used for utility, landscaping, small demolition.