Exterior View
Interior View

304 Mini Excavator

The Cat® 304 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

Net Power
45hp
Engine Model
C1.7 Turbo
Gross Power – 2,400 rpm – SAE J1995:2014
48.4hp
Bore
3.3in
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Stroke
3.9in
Displacement
101in³
Net Power – 2,400 rpm – ISO 9249, 80/1269/EEC
45hp
Note
Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load.
Operating Weight
9867lb
Minimum Operating Weight with Canopy*
8655lb
Maximum Operating Weight with Canopy**
9647lb
Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Note (1)
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
Maximum Operating Weight with Cab**
9867lb
Minimum Operating Weight with Cab*
8875lb
Dig Depth
138.2in
Maximum Blade Depth
18.7in
O/A Shipping Height
100in
Maximum Dump Clearance
147.2in
Stick Length
66.7in
Maximum Dig Height
201.8in
Maximum Reach – Ground Level
214.4in
Track Width
66.9in
Tail Swing with Counterweight
51.2in
Swing Bearing – Height
21.9in
Boom Height – Shipping Position
75.2in
Boom Swing – Left
20.9in
Maximum Reach
219.3in
Boom In Reach
92.1in
Boom Swing – Right
28.7in
Track Belt/Shoe Width
13.8in
Vertical Wall
99.8in
Maximum Blade Height
16.5in
Note
*Overall Shipping Length depends on blade position during shipment.
Overall Shipping Length*
194.9in
Ground Clearance
12in
O/A Undercarriage Length
87in
Tail Swing without Counterweight
47.4in
Steel Tracks
430lb
Counterweight
496lb
Angle Blade
243lb
Long Stick
66lb
Ground Pressure – Minimum Weight
4.2psi
Maximum Traction Force – Low Speed
7329lbf
Travel Speed – Low
2.2mile/h
Ground Pressure – Maximum Weight
4.9psi
Travel Speed – High
3.2mile/h
Maximum Traction Force – High Speed
4271lbf
Gradeability – Maximum
30 degrees
Cooling System
2.9gal (US)
Engine Oil
1.6gal (US)
Hydraulic System
17gal (US)
Fuel Tank
17gal (US)
Hydraulic Tank
14gal (US)
Operating Pressure – Travel
3553psi
Auxiliary Circuit – Secondary – Pressure
3553psi
Digging Force – Stick – Long
4316lbf
Auxiliary Circuit – Secondary – Flow
7gal/min
Pump Flow at 2,400 rpm
25gal/min
Operating Pressure – Swing
2611psi
Auxiliary Circuit – Primary – Flow
21gal/min
Auxiliary Circuit – Primary – Pressure
3553psi
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force – Stick – Standard
4721lbf
Digging Force – Bucket
8588lbf
Operating Pressure – Equipment
3553psi
Boom Swing – Right
50 Degrees
Machine Swing Speed
9r/min
Boom Swing – Left
78 Degrees
Angle Blade Height
14.2in
Straight Blade Height
14.2in
Straight Blade Width
66.9in
Angle Blade Width
66.9in
Angle Blade – Right
25 Degrees
Angle Blade – Left
25 Degrees
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Average Exterior Sound Pressure (ISO 6395:2008)
97dB(A)
Operator Sound Pressure (ISO 6396:2008)
76dB(A)
Note
European Union Directive “2000/14/EC”
Maximum Reach – Ground Level
204.7in
Vertical Wall
94.3in
Note
*Overall Shipping Length depends on blade position during shipment.
Tail Swing with Counterweight
51.2in
Boom In Reach
88.8in
Dig Depth
126.4in
Maximum Dig Height
198.4in
Maximum Blade Height
16.5in
Swing Bearing – Height
21.9in
Boom Swing – Left
20.9in
Stick Length
54.9in
O/A Undercarriage Length
87in
Track Belt/Shoe Width
13.8in
Boom Height – Shipping Position
63.8in
Boom Swing – Right
28.7in
Maximum Dump Clearance
143.5in
Ground Clearance
12in
Maximum Reach
209.8in
O/A Shipping Height
100in
Tail Swing without Counterweight
47.4in
Maximum Blade Depth
18.7in
Overall Shipping Length*
194.9in
Recyclability
96%
  • Engine
    • Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final/EU Stage V)
    • Automatic Engine Idle
    • Automatic Engine Shutdown
    • Automatic Two Speed Travel
    • Fuel Water Separator
    • Power on Demand (not available in all regions)
    • Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
  • Hydraulics
    • Smart Tech Electronic Pump
    • Accumulator
    • Automatic Swing Brake
    • Auxiliary Hydraulic Lines
    • One and Two Way Auxiliary Flow
    • Continuous Auxiliary Flow
    • Auxiliary Line Quick Disconnects
  • Operator Environment
    • Canopy or Cab (Canopy not available in some regions)
    • Top Guard ISO 10262:1998 Level I
    • ROPS – ISO 12117-2:2008
    • TOPS – ISO 12117:1997
    • Stick Steer Mode
    • Travel Cruise Control
    • Control Pattern Changer (optional in some regions)
    • Adjustable Wrist Rests
    • Washable Floor Mat
    • Travel Pedals and Hand Levers
    • Machine Security – Standard Key with Pass Code
    • Fabric Suspension Seat (Cab only)
    • Vinyl Suspension Seat (Canopy only)
    • Hydraulic Lockout – All Controls
    • Retractable High Visibility Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • Storage Pocket
    • Skylight
    • Mounting Bosses for Front
    • Signaling/Warning Horn
    • Interior Light (Cab only)
    • Boom Light, Halogen (not available in all regions)
    • Utility Space for Mobile Phone
    • Next Generation Color LCD Monitor (IP66)
      – Fuel Level and Coolant Temperature Gauges
      – Maintenance and Machine Monitoring
      – Performance and Machine Adjustments
      – Numeric Security Code
      – Multiple Languages
      – Hour Meter with Wake Up Switch
      – Jog Dial (cab only)
  • Undercarriage
    • Rubber Belt (350 mm/13.8 in)
    • Dozer Straight Blade
    • Dozer Blade Float
    • Tie Downs on Track Frame
  • Boom, Stick And Linkages
    • One Piece Boom (2500 mm/98.4 in)
    • Standard Stick (1395 mm/54.9 in)
    • Front Shovel Capable – Pin-On
    • Thumb Ready
    • Certified Lifting Eye
  • Electrical
    • 12 Volt Battery
    • Software (machine and monitor)
    • Maintenance Free Battery
    • Battery Disconnect
    • 12 Volt Power Socket
    • Travel Alarm (optional in some regions)
  • Other
    • Counterweight (225 kg/496 lb)
  • Operator Environment
    • Cab with Air Conditioning
    • Cab with Heater
    • No Travel Pedals and Hand Levers (optional in some regions)
    • Machine Security – Push to Start with Key Fob/Pass Code
    • LED Front Lights
    • LED Front and Rear Lights
    • LED Boom Light
    • Mirrors, Left, Right and Rear
    • Camera
    • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
    • Next Generation Advanced Monitor
      – Touch Screen
      – Site Reference System
      – High Definition Camera Capable (IP68 and IP69K)
      – Numeric Security Code
  • Undercarriage
    • Steel Track (350 mm/13.8 in)
    • Steel Track with Rubber Pads
    • Angle Blade
  • Boom, Stick And Linkages
    • Long Stick (1695 mm/66.7 in)
    • Front Shovel Capable – Dual Lock Manual Coupler
    • Front Shovel Capable – Hydraulic Coupler
    • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines
    • Bucket Divert Lines
    • Boom Lowering Check Valve
    • Stick Lowering Check Valve
    • Hydraulic Quick Coupler Lines
  • Electrical
    • Product Link PL243 (regulations apply)
    • Product Link PLE643 (regulations apply)
  • Guarding
    • Polycarbonate Half Height Front Guard (Canopy only)
    • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
    • Heavy Duty Front Guard ISO 10262:1998 Level II
    • Heavy Duty Top Guard 10262:1998 Level II (Cab only)
  • Other
    • Bio Oil Capable
    • Eco Drain
    • Water Jacket Heater

Why Choose Louisiana Cat

We serve to build and power our community for a better future.

  • Provide a safe & meaningful work environment
  • Deliver innovative solutions through our expertise
  • Committed to the long-term growth and success of our employees and customers
  • Grow our business profitably

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Terms and Conditions

Small Excavators Big Savings: Terms and Conditions

* Offer valid from October 1, 2024 through December 31, 2024 on new 313 through 317 Cat® excavators sold by participating Cat dealers to customers in the USA or Canada. Purchase must occur during offer period. Offer subject to machine availability and credit approval by Cat Financial. Not all customers will qualify. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

The Great Payback: Terms and Conditions

*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on select new Cat® machines listed in our Heavy Equipment Promotion page. Purchase must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The offered Cat Customer Value Agreement (CVA) includes 6 maintenance parts kits; S∙O∙SSM; and 36 month VisionLink® ConnectPro. The maintenance parts cover the first 3,000 hours^ (estimated 3 years) of machine utilization. Each kit contains one set of parts for regular planned maintenance under normal operating conditions. In some severe applications where maintenance parts need to be replaced more frequently, additional parts will be at customer’s expense. Offer excludes additional maintenance parts, dealer labor, wear parts, and fluids. Offer also includes a 36 month/5000 hour (whichever occurs first) Powertrain, Hydraulics and Technology Equipment Protection Plan (EPP). In some areas, EPP might be sold separately from the CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply. Contact your Cat dealer for details.

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Financing provided by Caterpillar Financial.
*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on purchases of new mini excavators, micro excavators, skid steer loaders, and compact track loaders sold by participating Cat dealers to customers in the USA or Canada. Purchases (both machine and CVA) and machine delivery must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The credit $500 USD for CVA purchase can only be applied toward the purchase of a qualifying Cat Customer Value Agreement (CVA). CVA must be at least 2yr/1000hr and must include 1-year Preventative Maintenance Parts Kit, TA1 annual Inspection, signed CVA contract, and Product LinkTM. Amount of CVA credit is the same for all models and cannot exceed the price of the qualifying CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

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