Machine models

Cat 300.9D specifications

Entries in this reference
Listing-entry count
1

Short answer

Cat 300.9D: excavator.

Selected configuration figures
Configuration	Documented field and quantity
300.9D	Net Power 13 hp Operating Weight - Without Safety Frame 2,061 lb

300.9D specification matrix — Engine
Specification	300.9D
Net Power	13 hp
Engine Model	Yanmar 31NV70
Rated Speed	2100 r/min
Maximum Engine Output	18 hp
Gross Power - ISO 14396	18 hp
Diesel Tank Volume	2.64 gal (US)
Displacement	in³ 52 cm³ 854
Flywheel Output ISO	13 hp
Battery	12 V, 20 Amp
Type	Water cooled model 3-cylinder diesel engine
Make/Type	Yanmar 31NV70
Emissions	Meets US EPA Tier 4 Final/EU Stage V emission standards

Dimensions and weight
Specification	300.9D
Dig Depth	68 in
Undercarriage Width - Extended	2.83 ft
Width	2.4 ft
Height - With ROPS Safety Frame Folded Down	4.94 ft
Maximum Dump Height	6.68 ft
Maximum Dozer Lift Height	8 in
Length - Undercarriage	4 ft
Maximum Vertical Dig Depth	4.43 ft
Minimum Front Linkage Swing Radius	3.77 ft
Boom Swing Angle - Left	55 °
Undercarriage Width - Retracted	2.33 ft
Boom Swing Angle - Right	56 °
Maximum Reach	10.09 ft
Maximum Reach - Ground Level	9.92 ft
Transport Length - Arm Lowered	9 ft
Track Width	7 in
Tail Swing Radius	2.41 ft
Maximum Dozer Dig Depth	7 in
Maximum Dig Height	9.39 ft
Height - With ROPS Safety Frame Unfolded	7.47 ft

Hydraulic System
Specification	300.9D
Pumps	2 gear pumps
Discharge Capacity	11.4 + 11.4 L/min (3 + 3 gpm)
Operating Pressure for the Work and Travel Hydraulics	2,466 psi
Operating Pressure Pivot	1,015 psi
Hydraulic Tank Capacity	3.7 gal (US)

Operational Data
Specification	300.9D
Operating Weight - Without Safety Frame	2,061 lb
Digging Force - Bucket	2,000 lb
Digging Force - Stick	1,011 lb
Operating Weight - With Safety Frame	2,170 lb

Weights
Specification	300.9D
Operating Weight	2,061 lb

Chassis and Swivel Gear
Specification	300.9D
Gradeability	30°
Travel Speed	1.12 mph
Ground Clearance	5 in
Ground Pressure	3.5 psi / 0.25 kg/cm²
Machine Swing Speed	8 r/min
Number of Rollers - Each Side	2

Operating Specifications
Specification	300.9D
Stick Length - Standard	34.8 in
Machine Overhang	12.5 in

Dozer Blade
Specification	300.9D
Height	8 in
Dig Depth	7 in
Width	28 in
Lift Height	8 in

Noise Emissions
Specification	300.9D
Sound Power Level (LWA) (to 2000/14/EG)	93 dB(A)

Ratios
Figure	300.9D
Engine horsepower per 1,000 lb of weight	6.3

Cat 300.9D: excavator

Where the 300.9D ranks in Cat's list — Scope of the captured comparison
Brand	Equipment group	Compared entry	Sort order
Cat	excavator	300.9D	Descending quantity; 1 is largest

Figure	300.9D	Rank	Lowest in line	Highest in line
Engine power	13.0 hp	13 of 13	13.0 hp	313.8 hp
Listed weight	2,061 lb	9 of 9	2,061 lb	10,844 lb
Horsepower per 1,000 lb	6.3 hp	1 of 9	3.5 hp	6.3 hp

The 300.9D beside its neighbours

Base version	300.9D	301.5
Engine power	13 hp	18.4 hp
Weight	2,061 lb	3,688 lb
Fuel capacity	301.5: 5.9 gal
Ground pressure	300.9D: 3.5 psi / 0.25 kg/cm²
Maximum digging depth	301.5: 6.99 ft

300.9D: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums and TractorByNet	excavator	Cat and the 300 line that the 300.9D belongs to (no title names the exact model). That is too few titles to say what owners mostly ask about, so the most recent are listed instead	6

CAT 300 9 Bending Top Ram (Heavy Equipment Forums, 2026-07-11)
CAT 300 9 Mini Mini Excavator (Heavy Equipment Forums, 2017-01-13)
2000 Arctic CAT 300 (TractorByNet, 2013-12-12)
Rm 300 CAT Grinder (Heavy Equipment Forums, 2013-08-28)

300.9D: dated market and recall observations — Dated listing search
Date	Listing index	Equipment class	Names queried	Result
2026-09-24	MachineryTrader (machinerytrader.com)	excavator	300.9D	No matching offers in this snapshot

Dated CPSC search
Date	Database	Names queried	Result
2026-09-24	U.S. Consumer Product Safety Commission	Cat; 300.9D	No matching recall in the stated search

Sources for this page
Evidence class	Document, classification and recorded date
Manufacturer	Manufacturer: Cat 300.9D — Caterpillar Inc.. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Cat 300.9D — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: TractorByNet thread index for Cat 300.9D — TractorByNet. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Cat — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Recorded observations — Forum-title snapshot
Observation field	Recorded value
Title count	6
Forum indexes	Heavy Equipment Forums and TractorByNet
Search wording	the 300.9D excavator
Latest title quoted by the reference	CAT 300 9 Bending Top Ram

Cat 300.9D: Configuration records

300.9D

Specification	Source figure
Engine
Net Power	13 hp
Engine Model	Yanmar 31NV70
Rated Speed	2100 r/min
Maximum Engine Output	18 hp
Gross Power - ISO 14396	18 hp
Diesel Tank Volume	2.64 gal (US)
Flywheel Output ISO	13 hp
Battery	12 V, 20 Amp
Type	Water cooled model 3-cylinder diesel engine
Make/Type	Yanmar 31NV70
Emissions	Meets US EPA Tier 4 Final/EU Stage V emission standards
Dimensions and weight
Undercarriage Width - Extended	2.83 ft
Height - With ROPS Safety Frame Folded Down	4.94 ft
Maximum Dump Height	6.68 ft
Maximum Dozer Lift Height	8 in
Length - Undercarriage	4 ft
Maximum Vertical Dig Depth	4.43 ft
Minimum Front Linkage Swing Radius	3.77 ft
Boom Swing Angle - Left	55 °
Undercarriage Width - Retracted	2.33 ft
Boom Swing Angle - Right	56 °
Maximum Reach	10.09 ft
Maximum Reach - Ground Level	9.92 ft
Transport Length - Arm Lowered	9 ft
Track Width	7 in
Tail Swing Radius	2.41 ft
Maximum Dozer Dig Depth	7 in
Maximum Dig Height	9.39 ft
Height - With ROPS Safety Frame Unfolded	7.47 ft
Hydraulic System
Pumps	2 gear pumps
Discharge Capacity	11.4 + 11.4 L/min (3 + 3 gpm)
Operating Pressure for the Work and Travel Hydraulics	2,466 psi
Operating Pressure Pivot	1,015 psi
Hydraulic Tank Capacity	3.7 gal (US)
Operational Data
Operating Weight - Without Safety Frame	2,061 lb
Digging Force - Stick	1,011 lb
Operating Weight - With Safety Frame	2,170 lb
Chassis and Swivel Gear
Gradeability	30°
Travel Speed	1.12 mph
Ground Pressure	3.5 psi / 0.25 kg/cm²
Number of Rollers - Each Side	2
Operating Specifications
Stick Length - Standard	34.8 in
Machine Overhang	12.5 in
Dozer Blade
Height	8 in
Width — Dozer Blade	28 in
Noise Emissions
Sound Power Level (LWA) (to 2000/14/EG)	93 dB(A)
Dimensions
Width — Dimensions	2.4 ft
Additional specifications
Displacement	in³ 52 cm³ 854
Dig Depth	68 in
Digging Force - Bucket	2,000 lb
Operating Weight	2,061 lb
Ground Clearance	5 in
Machine Swing Speed	8 r/min
Lift Height	8 in

Source

More in Cat: 301.5, M312/M315/M318, 302.5C: stick reach/blade/auxiliary circuits.

Cat 300.9D specifications

Cat 300.9D: excavator

The 300.9D beside its neighbours

Sources for this page

Cat 300.9D: Configuration records