Caterpillar 300.9D Mini Excavator Specs

Category: Mini Excavators ➔
Manufacturer: Caterpillar ➔
Model: 300.9D ➔

The Caterpillar 300.9D is a compact mini excavator designed for work in confined spaces, landscaping, utility installation, and light construction. It features a narrow footprint, low operating weight, and zero tail swing design for improved maneuverability in restricted areas. The 300.9D is commonly used for digging, trenching, grading, and material handling where larger excavators cannot operate efficiently. Caterpillar built the model for transportability, ease of access, and simple operation on small job sites. As a mini excavator, the 300.9D is suited to contractors, rental fleets, and maintenance crews needing a small machine with practical digging capability.

General Specifications

Caterpillar 300.9D Mini Excavator General Specifications specifications
Digging Depth	5.70 ft (1.74 m) - Starting 2025
Digging Reach	9.90 ft (3.02 m) - Starting 2025
Engine	18.00 hp (13.42 kw) - Starting 2025
Operating Weight	2,170.00 lbs (984.30 kg) - Starting 2025

Chassis And Swivel Gear

Caterpillar 300.9D Mini Excavator Chassis And Swivel Gear specifications
Gradeability	30°/58% - Starting 2026
Ground Clearance	5.00 in (12.70 cm) - Starting 2026
Ground Pressure	3.5 psi - Starting 2026
Machine Swing Speed	8 r/min - Starting 2026
Number of Rollers - Each Side	2 - Starting 2026
Track Width	7.00 in (17.78 cm) - Starting 2026
Travel Speed	1.12 mph (1.80 kph) - Starting 2026

Dimensions

Caterpillar 300.9D Mini Excavator Dimensions specifications
Boom Swing Angle - Left	55 degrees - Starting 2026
Boom Swing Angle - Right	56 degrees - Starting 2026
Dig Depth	68.00 in (172.72 cm) - Starting 2026
Height	7.50 ft (2.29 m)
Height - With ROPS Safety Frame Folded Down	4.94 ft (1.51 m) - Starting 2026
Height - With ROPS Safety Frame Unfolded	7.47 ft (2.28 m) - Starting 2026
Length	9.00 ft (2.74 m)
Length - Undercarriage	4.00 ft (1.22 m) - Starting 2026
Maximum Dig Height	9.39 ft (2.86 m) - Starting 2026
Maximum Dozer Dig Depth	7.00 in (17.78 cm) - Starting 2026
Maximum Dozer Lift Height	8.00 in (20.32 cm) - Starting 2026
Maximum Dump Height	6.68 ft (2.04 m) - Starting 2026
Maximum Reach	10.09 ft (3.08 m) - Starting 2026
Maximum Reach - Ground Level	9.92 ft (3.02 m) - Starting 2026
Maximum Vertical Dig Depth	4.43 ft (1.35 m) - Starting 2026
Minimum Front Linkage Swing Radius	3.77 ft (1.15 m) - Starting 2026
Tail Swing Radius	2.41 ft (0.73 m) - Starting 2026
Track Width	7.00 in (17.78 cm) - Starting 2026
Transport Length - Arm Lowered	9.00 ft (2.74 m) - Starting 2026
Undercarriage Width - Extended	2.83 ft (0.86 m) - Starting 2026
Undercarriage Width - Retracted	2.33 ft (0.71 m) - Starting 2026
Weight	2,170.00 lbs (984.30 kg)
Width	2.40 ft (0.73 m) - Starting 2026

Dozer Blade

Caterpillar 300.9D Mini Excavator Dozer Blade specifications
Dig Depth	7.00 in (17.78 cm) - Starting 2026
Height	8.00 in (20.32 cm) - Starting 2026
Lift Height	8.00 in (20.32 cm) - Starting 2026
Width	28.00 in (71.12 cm) - Starting 2026

Engine

Caterpillar 300.9D Mini Excavator Engine specifications
Battery	12 V, 20 Amp - Starting 2026
Diesel Tank Volume	2.64 gal (9.99 l) - Starting 2026
Displacement	52.00 cu in (852.13 cu cm) - Starting 2026
Emissions	Meets U.S. EPA Tier 4 Final/EU Stage V emission standards. - Starting 2026
Engine Model	Yanmar 31NV70 - Starting 2026
Flywheel Output ISO	13.00 hp (9.69 kw) - Starting 2026
Gross Power - ISO 14396	18.00 hp (13.42 kw) - Starting 2026
Make/Type	Yanmar 31NV70 - Starting 2026
Maximum Engine Output	18.00 hp (13.42 kw) - Starting 2026
Net Power	13.00 hp (9.69 kw) - Starting 2026
Rated Speed	2100 r/min - Starting 2026
Type	Water cooled model 3-cylinder diesel engine - Starting 2026

Hydraulic System

Caterpillar 300.9D Mini Excavator Hydraulic System specifications
Discharge Capacity	11.4 + 11.4 L/min (3 + 3 gal/min) - Starting 2026
Hydraulic Tank Capacity	3.70 gal (14.00 l) - Starting 2026
Operating Pressure for the Work and Travel Hydraulics	2466 psi - Starting 2026
Operating Pressure Pivot	1015 psi - Starting 2026
Pumps	2 gear pumps - Starting 2026

Noise Emissions

Caterpillar 300.9D Mini Excavator Noise Emissions specifications
Sound Power Level (LWA) (to 2000/14/EG)	93 dB(A) - Starting 2026

Operating Specifications

Caterpillar 300.9D Mini Excavator Operating Specifications specifications
Machine Overhang	12.50 in (31.75 cm) - Starting 2026
Stick Length - Standard	34.80 in (88.39 cm) - Starting 2026

Operational Data

Caterpillar 300.9D Mini Excavator Operational Data specifications
Digging Force - Bucket	2,000.00 lbs (907.19 kg) - Starting 2026
Digging Force - Stick	1,011.00 lbs (458.58 kg) - Starting 2026
Operating Weight - With Safety Frame	2,170.00 lbs (984.30 kg) - Starting 2026
Operating Weight - Without Safety Frame	2,061.00 lbs (934.86 kg) - Starting 2026

Weights

Caterpillar 300.9D Mini Excavator Weights specifications
Operating Weight	2,061.00 lbs (934.86 kg) - Starting 2026
Operating Weight - With Safety Frame	2,170.00 lbs (984.30 kg) - Starting 2026
Operating Weight - Without Safety Frame	2,061.00 lbs (934.86 kg) - Starting 2026

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