279D Compact Track Loader

279D Compact Track Loader

The Cat 279D Compact Track Loader, with its radial lift design, delivers impressive mid-lift reach and excellent digging performance with outstanding drawbar power. Its standard, suspended undercarriage system provides superior traction, flotation, stability and speed to work in a wide range of applications and underfoot conditions.

Engine Model
Cat C3.3B DIT (turbo)
Net Power
72.9 hp
Gross Power
74.3 hp
Gross Power SAE J1995
74.3 hp

Engine

Engine Model
Cat C3.3B DIT (turbo)
Net Power
72.9hp
Gross Power
74.3hp
Gross Power SAE J1995
74.3hp
Net Power SAE 1349
72.9hp
Displacement
203.0in3
Bore
3.7in
Stroke
4.7in
Engine Model
Cat C3.3B DIT (turbo)
Net Power
72.9HP
Gross Power
74.3HP
Gross Power - SAE J1995
74.3HP
Net Power - SAE 1349
72.9HP
Displacement
203in³
Bore
3.7in
Stroke
4.7in
Net Power - ISO 9249
73.7HP
Peak Torque - 1,500 rpm - SAE J1995
195ft·lbf
Net Power ISO 9249
73.7hp
Peak Torque at 1,500 rpm SAE J1995
195lbf-ft

Power Train

Travel Speed (Forward or Reverse): One Speed
4.5mph
Travel Speed (Forward or Reverse): Two Speed
7.0mph
Travel Speed Reverse - 2-Speed
7.0mph
Travel Speed Forward - 2-Speed
7.0mph
Travel Speed - Forward or Reverse - One Speed
4.5mile/h
Travel Speed - Forward or Reverse - Two Speed
7mile/h

Weights

Operating Weight
9893lb
Operating Weight
9893lb
Note
Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics,
Note
Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics,

Operating Specifications

Rated Operating Capacity with Optional Counterweight
3185lb
Ground Contact Area (400 mm/15.7 in track)
2015in2
Tipping Load
5870.0lb
Breakout Force, Tilt Cylinder
7285.0lb
Tipping Load
5870lb
Breakout Force - Tilt Cylinder
7285lb
Ground Contact Area - With 400 mm/15.7 in Track
2015psi
Rated Operating Capacity with Optional Counterweight
3185in²
Ground Contact Area - With 450 mm/17.7 in Track
2272in²
Ground Pressure - With 400 mm/15.7 in Track
4.9psi
Ground Pressure - With 450 mm/17.7 in Track
4.4psi
Ground Contact Area (450 mm/17.7 in track)
2272in2
Note
Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics,
Ground Pressure (400 mm/15.7 in track)
4.9psi
Ground Pressure (450 mm/17.7 in track)
4.4psi
Note
Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics,
Rated Operating Capacities - 50% Tipping Load
2935lb
Rated Operating Capacities - 35% Tipping Load
2055lb

Service Refill Capacities

Cooling System
3.7gal
Engine Crankcase
3.0gal
Fuel Tank
24.8gal
Hydraulic System
13.7gal
Hydraulic Tank
10.3gal
Cooling System
3.7gal (US)
Engine Crankcase
3gal (US)
Fuel Tank
24.8gal (US)
Hydraulic System
13.7gal (US)
Hydraulic Tank
10.3gal (US)

Dimensions

Length of Track on Ground
64.2in
Length with Bucket on Ground
146.2in
Length without Bucket
117.9in
Height to Top of Cab
83.2in
Vehicle Width (400 mm/15.7 in tracks)
76.0in
Maximum Overall Height
159.5in
Bucket Pin Height at Maximum Lift
124.9in
Bucket Pin Height at Carry Position
7.8in
Reach at Maximum Lift and Dump
22.6in
Clearance at Maximum Lift and Dump
97.8in
Ground Clearance
8.9in
Departure Angle
32°
Turning Radius from Center – Coupler
55.5in
Turning Radius from Center – Bucket
88.8in
Maximum Reach with Arms Parallel to Ground
54.0in
Rack Back Angle at Maximum Height
84°
Length - Track on Ground
64.2in
Height - Top of Cab
83.2in
Ground Clearance
8.9in
Departure Angle
32°
Maximum Dump Angle
39°
Bucket Pin Height - Carry Position
7.8in
Bucket Pin Height - Maximum Lift
124.9in
Clearance at Maximum Lift and Dump
97.8in
Length - With Bucket on Ground
146.2in
Length - Without Bucket
117.9in
Maximum Overall Height
159.5in
Maximum Reach - With Arms Parallel to Ground
54in
Rack Back Angle - Maximum Height
84°
Reach - Maximum Lift/Dump
22.6in
Turning Radius from Center - Bucket
88.8in
Turning Radius from Center - Coupler
55.5in
Turning Radius from Center - Machine Rear
70.7in
Note
Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics,
Vehicle Width (450 mm/17.7 in tracks)
78.0in
Note
Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1981 mm (78 in) dirt bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics,
Overall Length - Track
83.8in
Vehicle Width (400 mm/15.7 in tracks)
76in
Vehicle Width (450 mm/17.7 in tracks)
78in

Hydraulic System

Hydraulic Flow – Standard: Loader Hydraulic Pressure
3335psi
Hydraulic Flow – Standard: Loader Hydraulic Flow
23gal/min
Hydraulic Flow – Standard: Hydraulic Power (calculated)
44hp
Hydraulic Flow – High Flow XPS: Maximum Loader Hydraulic Pressure
4061psi
Hydraulic Flow – High Flow XPS: Maximum Loader Hydraulic Flow
32gal/min
Hydraulic Flow – High Flow XPS: Hydraulic Power (calculated)
76hp
Max. Loader Hydraulic Flow
32.0gal/min
Hydraulic Power (calculated)
76.0hp
Hydraulic Flow - High Flow XPS - Hydraulic Power (Calculated)
76HP
Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Flow
32gal/min
Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Pressure
4061psi
Hydraulic Flow - Standard - Hydraulic Power (Calculated)
44HP
Hydraulic Flow - Standard - Loader Hydraulic Flow
23psi
Hydraulic Flow - Standard - Loader Hydraulic Pressure
3335psi

Cab

ROPS
ISO 3471:2008
FOPS
ISO 3449:2005 Level I
FOPS Level II
ISO 3449:2005 Level II
ROPS
ISO 3471:2008
FOPS
ISO 3449:2005 Level I
FOPS Level II
ISO 3449:2005 Level II

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

Noise Level

Inside Cab**
83dB(A)
Note (1)
Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
Note (2)
**The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan spe
Note (3)
***The labeled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC.
Outside Cab***
103dB(A)
Inside Cab**
83dB(A)
Outside Cab***
103dB(A)
Note
Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
Note
**The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan spe
Note
***The labeled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC.

Standard Equipment:

  • Electrical
    • 12 volt Electrical System
    • 80 ampere Alternator
    • Ignition Key Start/Stop Switch
    • Lights: Gauge Backlighting, Two Rear Tail Lights, Two Adjustable Front and Rear Halogen Lights, Dome Light
    • Backup Alarm
    • Heavy Duty Battery, 880 CCA
  • Operator Environment
    • Gauges: Fuel Level, Hour Meter
    • Operator Warning System Indicators: Air Filter Restriction, Alternator Output, Armrest Raised/Operator Out of Seat, Engine Coolant Temperature, Engine Oil Pressure, Glow Plug Activation, Hydraulic Filter Restriction, Hydraulic Oil Temperature, Parking Brake Engaged, Engine Emission System
    • Adjustable Vinyl Seat
    • Fold In Ergonomic Contoured Armrest
    • Control Interlock System, when operator leaves seat or armrest raised: Hydraulic System Disables, Hydrostatic Transmission Disables, Parking Brake Engages
    • ROPS Cab, Open, Tilt Up
    • FOPS, Level I
    • Top and Rear Windows
    • Floor Mat
    • Interior Rearview Mirror
    • 12 volt Electric Socket
    • Horn
    • Hand (Dial) Throttle, Electronic
    • Adjustable Joystick Controls
    • Anti-theft Security System with 6-button Keypad
    • Storage Compartment with Netting
  • Power Train
    • Cat C3.3B, Turbo Diesel Engine, Meeting U.S. EPA Tier 4 Final (EU Stage IIIB) Emission Standards
    • Air Cleaner, Dual Element, Radial Seal
    • S·O·SSM Sampling Valve, Hydraulic Oil
    • Filters, Cartridge-type, Hydraulic
    • Filters, Cartridge-type, Fuel and Water Separator
    • Radiator/Hydraulic Oil Cooler (side-by-side)
    • Spring Applied, Hydraulically Released, Wet Multi Disc Parking Brakes
    • Hydrostatic Transmission, Two Speed Travel
    • Suspension – Independent Torsion Axles (4)
  • Other
    • Engine Enclosure, Lockable
    • Extended Life Antifreeze, –37° C (–34° F)
    • Machine Tie Down Points (6)
    • Support, Lift Arm
    • Hydraulic Oil Level Sight Gauge
    • Radiator Coolant Level Sight Gauge
    • Radiator, Expansion Bottle
    • Cat ToughGuard Hose
    • Auxiliary, Hydraulics, Continuous Flow
    • Heavy Duty, Flat Faced Quick Disconnects with Integrated Pressure Release
    • Split D-Ring to Route Work Tool Hoses Along Side of Left Lift Arm
    • Electrical Outlet, Beacon
    • Belly Pan Cleanout
    • Variable Speed Demand Fan
    • Product Link PL240, Cellular
  • Mandatory Equipment
    • Hydraulics, Standard or High Flow XPS
    • Quick Coupler, Mechanical or Powered
    • Seat Belt, 50 mm (2 in) or 75 mm (3 in)
    • Steel Imbed Rubber Track – 400 mm (15.7 in) or 450 mm (17.7 in)
    • Dual Flange Front Idler/Single Flange Rear Idler or Triple Flange Front/Rear Idlers
    • PERFORMANCE PACKAGES:
      • Performance Package H1: Standard Flow Hydraulics (No Self Level)
      • Performance Package H2: Standard Flow Hydraulics, Dual Direction Electronic Self Level (Raise and Lower), Electronic Snubbing (Raise and Lower)
      • Performance Package H3: High Flow XPS, Dual Direction Electronic Self Level (Raise and Lower), Electronic Snubbing (Raise and Lower)
    • COMFORT PACKAGES:
      • Open ROPS (C0): Static Seat (No Foot Throttle, Headliner, Heater or Door)
      • Open ROPS (C1): Foot Throttle, Headliner, Cup Holder, and choice of Seat (Mechanical Suspension or High Back, Heated, Air Ride Seat) (No Heater or Door)
      • Enclosed ROPS with Heater (C2): Foot Throttle, Headliner, Heater and Defroster, Side Windows, Cup Holder, Radio Ready, choice of Seat (Mechanical Suspension or High Back, Heated, Air Ride Seat) and Door (Glass or Polycarbonate)
      • Enclosed ROPS with A/C (C3): C2 + Air Conditioner

Optional Equipment:

  • Optional Equipment
    • Hand-Foot Style Controls
    • External Counterweights
    • Beacon, Rotating
    • Engine Block Heater – 120V
    • Oil, Hydraulic, Cold Operation
    • Paint, Custom
    • Heavy Duty Battery, 1,000 CCA
    • Product Link PL641, Cellular
    • Speed Sensitive Ride Control
    • Advanced Display: Full Color, 5 in LCD screen, Advanced Multi-operator Security System, On-screen Adjustments for Implement Response, Hystat Response, and Creep Control; Rearview Camera Ready
    • Advanced Display: Rearview Camera Included
    • Work Tool Return to Dig and Work Tool Positioner
    • Bluetooth Radio with Microphone (AM/FM/Weather Band Receiver with USB and Auxiliary Input Jack)