279D3 Compact Track Loader

279D3 Compact Track Loader

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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 ...
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Engine

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

Operating Specifications

Rated Operating Capacities - 35% Tipping Load
2220lb
Tipping Load
6345lb
Breakout Force - Tilt Cylinder
7285lb
Rated Operating Capacities - 50% Tipping Load
3170lb
Ground Contact Area - With 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, 2036 mm (80 in) low profile bucket, 400 mm (15.7 in) tracks, dual flange front idler/single flange rear idler, standard flow hydr
Rated Operating Capacity with Optional Counterweight
3390lb
Ground Pressure - With 450 mm/17.7 in Track
4.4psi

Weights

Operating Weight
10095lb
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 hydr

Dimensions

Length - Track on Ground
64.2in
Overall Length - Track
83.8in
Height - Top of Cab
83.2in
Ground Clearance
8.9in
Departure Angle
32°
Maximum Dump Angle
39°
Bucket Pin Height - Carry Position
7.8in
Turning Radius from Center - Machine Rear
70.7in
Turning Radius from Center - Coupler
55.5in
Maximum Overall Height
159.5in
Maximum Reach - With Arms Parallel to Ground
54in
Turning Radius from Center - Bucket
88.8in
Bucket Pin Height - Maximum Lift
124.9in
Length - With Bucket on Ground
146.2in
Length - Without Bucket
117.9in
Reach - Maximum Lift/Dump
22.6in
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 hydr
Clearance at Maximum Lift and Dump
97.8in
Vehicle Width (450 mm/17.7 in tracks)
78in
Rack Back Angle - Maximum Height
84°

Cab

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

Hydraulic System

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

Power Train

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

Service Refill Capacities

Hydraulic System
13.7gal (US)
Hydraulic Tank
10.3gal (US)
Fuel Tank
27.7gal (US)
Engine Crankcase
3gal (US)
Cooling System
3.7gal (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 spe
Outside Cab***
103dB(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**
83dB(A)
Note (1)
Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.

Quiet and Comfortable

The industry leading sealed and pressurized cab option provides the operator with a cleaner and quieter operating environment with excellent work tool visibility. Continuing the industry leading trend, the D3 Series also includes as standard, seat mounted adjustable joystick controls for operator comfort.

Maximum Performance

High performance power train provides maximum performance and production capability through the Electronic Torque Management system, standard two speed travel and an electronic hand/foot throttle with decel pedal capability.

Making Your Job Easier

Cat® “Intelligent Leveling” system provides industry leading technology, integration, and available features such as dual direction self level, work tool return to dig, and work tool positioner.

A Smooth Ride

A standard, fully independent torsion axle suspension combined with the optional Speed Sensitive Ride Control system improves operation on rough terrain, enabling better load retention, increased productivity and greater operator comfort.

Optimized Machine Capability

Maximize machine capability and control with the available Advanced Display, providing on-screen adjustments for implement response, hystat response and creep control. Also features multi-language functionality with customizable layouts, security system and rearview camera.

Standard Equipment:

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
    • Bluetooth® Radio with Microphone (AM/FM/Weather Band Receiver with USB and Auxiliary Input Jack)