Excavator
4 photosCaterpillar · Excavators
CAT 304 Mini Excavator
The CAT 304 has an operating weight of 9,867 lb and a 45 hp engine, with a maximum dig depth of 10.8 ft.
Updated October 2026
45 HP9,867 lbsMini Class2015-present
How much is a used CAT 304 worth?
No price data yet. Get an offer for a real number.
Used price
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8 photosAbout the CAT 304 Mini Excavator
The CAT 304 Mini Excavator is a compact excavator built from 2015 to today.
Owners mostly put it to work on utility work, light demolition, trenching.
Specifications
Engine & Power
- Engine
- Cat C1.1
- Horsepower
- 45 HP
- Fuel Tank
- 17 gal
Dimensions & Weight
- Operating Weight
- 9867 lbs
Performance
- Max Dig Depth
- 10.8 ft
- Max Reach
- 17.3 ft
- Bucket Capacity
- 0.15 cu yd
- Tail Swing
- Standard
Configuration
- Size Class
- Mini
- Years Produced
- 2015-present
Weight, power, and capacity figures checked October 2026 against 304 (current, Tier 4/Stage V). Older or newer generations of this model may differ.
Model Generations
304 CR
Common Applications
- Utility work
- Light demolition
- Trenching
Popular Attachments
ThumbQuick CouplerBreaker
Common Configurations
Standard Boom
How It Compares
| Spec | CAT 304 Mini Excavator | Kubota KX040-4 Compact Excavator | Hitachi ZX75US-5N Compact Excavator |
|---|---|---|---|
| Engine HP | 45 HP | 38.9 HP | 56.9 HP |
| Op. Weight | 9,867 lbs | 9,480 lbs | 19,244 lbs |
| Max Dig Depth | 10.8 | 11.2 | 15.1 |
| Est. Price Low | — | — | $51,000 |
| Est. Price High | — | — | $125,000 |
Against the Kubota KX040, the CAT 304 is 387 lb heavier, has 6.1 more hp and has 0.4 ft less max dig depth.
Against the Hitachi ZX75US, the CAT 304 is 9,377 lb lighter, has 11.9 less hp and has 4.3 ft less max dig depth.
Frequently Asked Questions
How much does the CAT 304 weigh?
The CAT 304 has an operating weight of 9,867 lb and a 45 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 304 worth?
No price data yet. Get an offer for a real number.
Where can I sell my CAT 304?
Send HeavyDutyYard the year, hours, and condition of your CAT 304 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 304 used for?
The CAT 304 Mini Excavator is commonly used for utility work, light demolition, trenching.