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Caterpillar 303.5 Mini Excavator

The Caterpillar 303.5 is a compact mini excavator designed for excavation, trenching, grading, and utility work in confined jobsite conditions. As part of Caterpillar's mini excavator lineup, the 303.5 combines a small operating footprint with hydraulic performance suited to landscaping, construction, and municipal applications. Typical features include a zero or reduced tail swing design, a backfill blade, auxiliary hydraulic capability, and compatibility with multiple attachments. The machine is commonly used where maneuverability, transportability, and precise control are required. The Caterpillar 303.5 mini excavator is valued for access in tight spaces and efficient operation on small to medium-scale projects.


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 2024 Caterpillar 303.5 From Rebel Auction Co., Inc. for Auction Pricing
  • A 2022 Caterpillar 303.5 From Rebel Auction Co., Inc. for Auction Pricing
  • A 2008 Caterpillar 303.5 From NC Machinery for $30,000.00 USD
  • A Caterpillar 303.5 From Wagner Equipment Co. for $45,000.00 USD
  • A 2022 Caterpillar 303.5 From Quinn Company for $50,000.00 USD



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