Skip to main content

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

23.6 HP9,239 lbsMini Class2017-present
Representative excavator
Representative excavator. Not a specific unit for sale.

How much is a used CAT 303.5 worth?

No price data yet. Get an offer for a real number.

Used price

No price data yet. Get an offer for a real number.

Own a CAT 303.5 Mini Excavator? Get an offer or list it free →

HeavyDutyYard Marketplace

Excavators for sale now

See all →

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

303.5 CR

Common Applications

  • Utility
  • Landscaping
  • Small demolition

Popular Attachments

ThumbQuick Coupler

Common Configurations

Standard

How It Compares

SpecCAT 303.5 Mini ExcavatorKubota KX033-4 Compact ExcavatorHitachi ZX50U-5N Compact Excavator
Engine HP23.6 HP23.2 HP36.8 HP
Op. Weight9,239 lbs7,616 lbs11,023 lbs
Max Dig Depth10.210.412.6
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.