Caterpillar 303 CR Mini Excavator Specs

Category: Mini Excavators ➔
Manufacturer: Caterpillar ➔
Model: 303 CR ➔

The Caterpillar 303 CR is a compact mini excavator designed for construction, landscaping, utility work, and site preparation in confined spaces. As part of Caterpillar's mini excavator lineup, the 303 CR features a reduced tail swing design for improved maneuverability near walls, obstacles, and traffic areas. It is commonly used for digging, trenching, grading, and material handling with a range of compatible attachments. The machine is built for transportability, efficient operation, and access to tight job sites where larger excavators cannot work. The Caterpillar 303 CR is a tracked excavator suited to contractors needing a small, versatile earthmoving machine.

General Specifications

Caterpillar 303 CR Mini Excavator General Specifications specifications
Digging Depth ft (m)	9.6 (2.9) — Starting 2025 Model Year
Digging Reach ft. (m)	16.8 (5.1) — Starting 2025 Model Year
Engine	C1.1 Turbo — Starting 2023 Model Year
Engine hp (kW)	23.6 (17.6) — Starting 2025 Model Year
Max Digging Depth	116.1 in ft (35.39 m) — Starting 2023 Model Year
Net Power	23.60 hp (17.60 kw) — Starting 2023 Model Year
Operating Weight	7,817.00 lbs (3,545.74 kg) — Starting 2023 Model Year
Operating Weight lbs (kg)	7,817 (3,545.7) — Starting 2025 Model Year

Blades

Caterpillar 303 CR Mini Excavator Blades specifications
Blade Lift Height	16.00 in (40.64 cm)
Blade Width	5.10 ft (1.55 m)
Dig Depth	15.00 in (38.10 cm)

Dimensions

Caterpillar 303 CR Mini Excavator Dimensions specifications
Center Ground Clearance	1.10 ft (0.34 m)
Digging Depth	9.00 ft (2.74 m)
Digging Reach	9.00 ft (2.74 m)
Height - Over Cab	8.20 ft (2.50 m)
Height - Over Canopy	8.20 ft (2.50 m)
Maximum Cutting Height - Long Stick	15.50 ft (4.72 m)
Maximum Cutting Height - Standard Stick	15.30 ft (4.66 m)
Maximum Digging Depth - Long Stick	10.20 ft (3.11 m)
Maximum Digging Depth - Standard Stick	9.90 ft (3.02 m)
Maximum Dump Height - Long Stick	10.80 ft (3.29 m)
Maximum Dump Height - Standard Stick	10.40 ft (3.17 m)
Maximum Horizontal Reach - Long Stick	18.00 ft (5.49 m)
Maximum Horizontal Reach - Standard Stick	17.30 ft (5.27 m)
Maximum Reach - Ground Level - Long Stick	16.10 ft (4.91 m)
Maximum Reach - Ground Level - Standard Stick	17.30 ft (5.27 m)
Maximum Vertical Dig Depth - Long Stick	8.20 ft (2.50 m)
Maximum Vertical Dig Depth - Standard Stick	8.40 ft (2.56 m)
Shipping Length	15.40 ft (4.69 m)
Swing Radius - Rear	3.00 ft (0.91 m)
Track Gauge	4.10 ft (1.25 m)
Track Shoe Width	1.00 ft (0.30 m)
Width - Over Track	5.10 ft (1.55 m)
Width - Upper Structure	5.40 ft (1.65 m)

Electrical System

Caterpillar 303 CR Mini Excavator Electrical System specifications
Electrical System Type	Twelve-volt system

Engine

Caterpillar 303 CR Mini Excavator Engine specifications
Bore	3.10 in (7.87 cm)
Displacement	80.50 cu in (1,319.16 cu cm)
Engine Model	S3L2
Gross Power	27.10 hp (20.21 kw)
Net Power	26.10 hp (19.46 kw)
Stroke	3.70 in (9.40 cm)

Hydraulic System

Caterpillar 303 CR Mini Excavator Hydraulic System specifications
Auxiliary Circuit - Primary	13.15 gpm (49.77 lpm)
Auxiliary Circuit - Primary (245 bar/3,553 psi)	13.15 gpm (49.77 lpm)
Digging Force - Bucket	6,000.00 lbs (2,721.56 kg)
Digging Force - Stick - Long	3,484.00 lbs (1,580.32 kg)
Digging Force - Stick - Standard	3,822.00 lbs (1,733.63 kg)
Operating Pressure - Equipment	3550 psi
Operating Pressure - Swing	3550 psi
Operating Pressure - Travel	3550 psi
Pump - Gear (Single)	6.20 gpm (23.47 lpm)
Pump - Gear (Tandem)	8.70 gpm (32.93 lpm)

Operating Specifications

Caterpillar 303 CR Mini Excavator Operating Specifications specifications
Operating Weight	7,403.00 lbs (3,357.95 kg)

Service Refill Capacities

Caterpillar 303 CR Mini Excavator Service Refill Capacities specifications
Cooling System TAG	1.00 gal (3.79 l)
Engine Oil	1.50 gal (5.68 l)
Fuel Tank	10.90 gal (41.26 l)
Hydraulic System	18.20 gal (68.89 l)
Hydraulic Tank	7.80 gal (29.52 l)

Swing System

Caterpillar 303 CR Mini Excavator Swing System specifications
Boom Swing - Left - With Stop	65 degrees
Boom Swing - Left - Without Stop	90 degrees
Boom Swing - Right	50 degrees
Machine Swing Speed	9.6 rpm
Swing System Type	Hydraulic Motor Driven

Travel System

Caterpillar 303 CR Mini Excavator Travel System specifications
Travel Speed - High	3.00 mph (4.83 kph)
Travel Speed - Low	1.70 mph (2.74 kph)

Weights

Caterpillar 303 CR Mini Excavator Weights specifications
Operating Weight - With Cab	7,524.00 lbs (3,412.83 kg)

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