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Caterpillar 303.5 Mini Excavator

The Caterpillar 303.5 is a compact mini excavator designed for digging, trenching, grading, and utility work in confined job sites. As part of Caterpillar's mini excavator lineup, the 303.5 is typically used in landscaping, construction, municipal maintenance, and light demolition applications. Its small footprint supports operation in narrow access areas while maintaining digging performance and maneuverability. Common features on the Caterpillar 303.5 include a zero or reduced tail swing design, hydraulic attachment capability, and a comfortable operator station. The model is recognized for versatility, transportability, and suitability for urban and residential excavation tasks.


See all Caterpillar 303.5s for sale

Blades

Blade Height14.60 in (37.08 cm)
Blade Lift Height16.50 in (41.91 cm)
Blade Width5.10 ft (1.55 m)
Dig Depth13.80 in (35.05 cm)

Dimensions

Center Ground Clearance1.00 ft (0.30 m)
Height - Over Cab8.00 ft (2.44 m)
Height - Over Canopy8.00 ft (2.44 m)
Maximum Cutting Height - Long Stick17.30 ft (5.27 m)
Maximum Cutting Height - Standard Stick16.60 ft (5.06 m)
Maximum Digging Depth - Long Stick11.80 ft (3.60 m)
Maximum Digging Depth - Standard Stick10.40 ft (3.17 m)
Maximum Dump Height - Long Stick12.60 ft (3.84 m)
Maximum Dump Height - Standard Stick11.90 ft (3.63 m)
Maximum Horizontal Reach - Long Stick18.60 ft (5.67 m)
Maximum Horizontal Reach - Standard Stick17.40 ft (5.30 m)
Maximum Reach - Ground Level - Long Stick18.20 ft (5.55 m)
Maximum Reach - Ground Level - Standard Stick17.00 ft (5.18 m)
Maximum Vertical Dig Depth - Long Stick9.10 ft (2.77 m)
Maximum Vertical Dig Depth - Standard Stick7.90 ft (2.41 m)
Shipping Length16.80 ft (5.12 m)
Stick Length - Long Stick5.50 ft (1.68 m)
Stick Length - Standard Stick4.10 ft (1.25 m)
Swing Radius - Rear4.70 ft (1.43 m)
Track Gauge4.10 ft (1.25 m)
Track Shoe Width12.00 ft (3.66 m)
Width - Over Track5.10 ft (1.55 m)
Width - Upper Structure5.10 ft (1.55 m)

Electrical System

Electrical System TypeTwelve-volt system

Engine

Bore3.40 in (8.64 cm)
Displacement91.30 cu in (1,496.14 cu cm)
Engine Model3013
Gross Power27.00 hp (20.13 kw)
Net Power25.00 hp (18.64 kw)
Stroke3.60 in (9.14 cm)

Hydraulic System

Auxiliary Circuit - Primary (245 bar/3,553 psi)17.40 gpm (65.86 lpm)
Digging Force - Bucket5,742.00 lbs (2,604.53 kg)
Digging Force - Stick - Long3,080.00 lbs (1,397.07 kg)
Digging Force - Stick - Standard4,114.00 lbs (1,866.08 kg)
Operating Pressure - Equipment2987 psi
Operating Pressure - Swing2494 psi
Operating Pressure - Travel2987 psi
Pump - Gear (Single)7.54 gpm (28.54 lpm)
Pump - Gear (Tandem)10.01 gpm (37.89 lpm)

Service Refill Capacities

Cooling System TAG1.30 gal (4.92 l)
Engine Oil1.50 gal (5.68 l)
Fuel Tank14.30 gal (54.13 l)
Hydraulic System18.20 gal (68.89 l)
Hydraulic Tank12.00 gal (45.42 l)

Swing System

Boom Swing - Left - With Stop55 degrees
Boom Swing - Left - Without Stop90 degrees
Boom Swing - Right50 degrees
Machine Swing Speed9.3 rpm
Swing System TypeHydraulic Motor Driven

Travel System

Maximum Traction Force - High Speed3,825.00 lbs (1,734.99 kg)
Maximum Traction Force - Low Speed6,750.00 lbs (3,061.75 kg)
Travel Speed - High2.80 mph (4.51 kph)
Travel Speed - Low1.60 mph (2.57 kph)

Weights

Operating Weight - With Cab7,810.00 lbs (3,542.56 kg)

  • Caterpillar 303.5s currently for sale
  • A Caterpillar 303.5 From Foley Incorporated for $45,500.00 USD
  • A 2022 Caterpillar 303.5 From NMC CAT for $48,500.00 USD
  • A 2022 Caterpillar 303.5 From Quinn Company for $50,000.00 USD
  • A Caterpillar 303.5 From Bergerat Monnoyeur for $39,000.00 USD
  • A 2022 Caterpillar 303.5 From Holt of California CAT for $44,900.00 USD



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