New CAT Equipment

279D3 Compact Track Loader

The Cat® 279D3 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.

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    Product Specs

    Engine

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

    Operating Specifications

    Rated Operating Capacities - 35% Tipping Load 2220 lb
    Tipping Load 6345 lb
    Breakout Force - Tilt Cylinder 7285 lb
    Rated Operating Capacities - 50% Tipping Load 3170 lb
    Ground Contact Area - With 450 mm/17.7 in Track 2272 in²
    Note Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 2036 mm (80 in) low profile bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).
    Rated Operating Capacity with Optional Counterweight 3390 lb
    Ground Pressure - With 450 mm/17.7 in Track 4.4 psi

    Weights

    Operating Weight 10095 lb
    Note Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 2036 mm (80 in) low profile bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).

    Dimensions

    Length - Track on Ground 64.2 in
    Overall Length - Track 83.8 in
    Height - Top of Cab 83.2 in
    Ground Clearance 8.9 in
    Departure Angle 32°
    Maximum Dump Angle 39°
    Bucket Pin Height - Carry Position 7.8 in
    Turning Radius from Center - Machine Rear 70.7 in
    Turning Radius from Center - Coupler 55.5 in
    Maximum Overall Height 159.5 in
    Maximum Reach - With Arms Parallel to Ground 54 in
    Turning Radius from Center - Bucket 88.8 in
    Bucket Pin Height - Maximum Lift 124.9 in
    Length - With Bucket on Ground 146.2 in
    Length - Without Bucket 117.9 in
    Reach - Maximum Lift/Dump 22.6 in
    Note Operating Weight, Operating Specifications and Dimensions all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 2036 mm (80 in) low profile bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).
    Clearance at Maximum Lift and Dump 97.8 in
    Vehicle Width (450 mm/17.7 in tracks) 78 in
    Rack Back Angle - Maximum Height 84°

    Hydraulic System

    Hydraulic Flow - Standard - Loader Hydraulic Pressure 3335 psi
    Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Flow 32 gal/min
    Hydraulic Flow - Standard - Loader Hydraulic Flow 23 psi
    Hydraulic Flow - Standard - Hydraulic Power (Calculated) 44 HP
    Hydraulic Flow - High Flow XPS - Maximum Loader Hydraulic Pressure 4061 HP
    Hydraulic Flow - High Flow XPS - Hydraulic Power (Calculated) 76 psi

    Cab

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

    Power Train

    Travel Speed - Forward or Reverse - Two Speed 8.3 mile/h
    Travel Speed - Forward or Reverse - One Speed 4.5 mile/h

    Service Refill Capacities

    Hydraulic System 13.7 gal (US)
    Hydraulic Tank 10.3 gal (US)
    Fuel Tank 27.7 gal (US)
    Engine Crankcase 3 gal (US)
    Cooling System 3.7 gal (US)

    Air Conditioning System (if equipped)

    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

    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 speeds.
    Outside Cab*** 103 dB(A)
    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.
    Inside Cab** 83 dB(A)
    Note (1) Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.