D3K2 Mulcher

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360° Visibility

Easy viewing of the job site operating area PLUS a rearview camera.

Seat Mounted Controls

Mounted on the air suspension seats, these controls isolate the machine vibration from the operator, reducing operator fatigue.

Pressurized Cab

Heated and air conditioned cab offer comfortable working environment resulting in less operator fatigue and improved productivity.

Hinged Radiator Grill

Allows for easy clean out of radiator without the need for tools.

Tractor Platform

Balanced and rugged for operating in rough terrain and soft underfoot conditions.

Long Life Mulching Head

New Cat® HM518 mulcher frame is designed for longer life using cladding material in high wear areas.

Hydraulically Controlled

Mulcher conveniently operates with a hydraulically operated front door and adjustable push bar.

Closed Loop Hydrostatic Circuit

Delivers efficient, high performance power to the mulcher head.

Reversible Drum

Easier operation and improved productivity.

Drum Speed Bar Indicator

In-cab indicator, aids operator in managing ground speed and overall mulching productivity.


Cat C4.4 ACERT™ diesel engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.


Cat Sealed and Lubricated Track with 406 mm (16 in) or 635 mm (25 in) track shoes provides superior flotation and stability for wide range of operating conditions.

Engine Model Cat C4.4 ACERT
Power - Net 77.6 kW (104 hp)
Displacement 4.4 L (269 in3)
Rated Net Power @ 2,200 rpm u2013 SAE J1349 77.6 kW (104 hp)
Rated Net Power @ 2,200 rpm u2013 ISO 9249/EEC 80/1269 77.6 kW (104 hp)
Note Engine meets Tier 4 Final/Stage IV emission standards.
Bore 105 mm (4.13 in)
Stroke 127 mm (5 in)
Operating Weight - XL 10771 kg (23746 lb)
Operating Weight - LGP 11203 kg (24698 lb)
Drive Pumps 1
Track Motors 2
Relief Valve Settings 48500 kPa (7033 psi)
Maximum Travel Speed u2013 Forward 9 km/h (5.6 mph)
Maximum Travel Speed u2013 Reverse 10 km/h (6.2 mph)
Service Refill Capacities
Fuel Tank 195 L (51.5 gal)
Crankcase and Filter 11 L (2.91 gal)
Final Drives, XL (each side) 10 L (2.6 gal)
Final Drives, LGP (each side) 10 L (2.6 gal)
Cooling System 22.4 L (5.92 gal)
Transmission/Hydraulic Tank 59.5 L (15.7 gal)
Diesel Exhaust Fluid (DEF) Tank 19 L (4.9 gal)
Hydraulic Controls
Pump Output 68 L/min (17.7 gal/min)
Relief Valve Settings 20600 kPa (2988 psi)
Retrieval Winch
Weight 764 kg (1684 lb)
Winch Drive Hydraulic
Control Hydraulic
Speed Variable
Rope Diameter u2013 recommended 13 mm (0.5 in)
Rope Diameter u2013 optional 16 mm (0.63 in)
Drum Capacity u2013 recommended cable 85 m (279 ft)
Drum Capacity u2013 optional cable 78 m (256 ft)
Maximum Line Pull u2013 bare drum 14583 kg (32150 lb)
Maximum Line Pull u2013 full drum 9072 kg (20000 lb)
Maximum Line Speed u2013 bare drum 15 m/min (50 ft/min)
Maximum Line Speed u2013 full drum 24 m/min (79 ft/min)
Shoe Width u2013 XL 406 mm (16 in)
Shoe Width u2013 LGP 635 mm (25 in)
Length of Track on Ground u2013 XL 2248 mm (89 in)
Length of Track on Ground u2013 LGP 2248 mm (89 in)
Track Gauge u2013 XL 1495 mm (59 in)
Track Gauge u2013 LGP 1725 mm (68 in)
Ground Contact Area u2013 XL 18254 cm2 (2829 in2)
Ground Contact Area u2013 LGP 28550 cm2 (4425 in2)
Ground Pressure u2013 XL 42.8 kPa (6.2 psi)
Ground Pressure u2013 LGP 30.0 kPa (4.2 psi)
Number of Rollers (each side) 6
Number of Shoes (each side) u2013 Sealed and Lubricated Track (SALT) Undercarriage 43
Note Specifications shown are for machine equipped with mulcher, cab ROPS, back-up alarm, operator, coolant, lubricants and full fuel tank.
Sound Levels: ISO 6396:2008 79 dB(A) (79 dB(A))
Sound Levels: SAE J1166 FEB2008 79 dB(A) (79 dB(A))
ROPS ISO 3471:2008
FOPS ISO 3449:2005 Level II
Track Gauge u2013 XL 1495 mm (58.9 in)
Track Gauge u2013 LGP 1725 mm (67.9 in)
Width of Tractor (standard shoes, no mulcher) u2013 XL 1901 mm (74.8 in)
Width of Tractor (standard shoes, no mulcher) u2013 LGP 2360 mm (92.9 in)
Overall Length (with blade) u2013 XL 4266 mm (168 in)
Overall Length (with blade) u2013 LGP 4255 mm (167.6 in)
Length of Basic Tractor (without mulcher) u2013 XL 3275 mm (128.9 in)
Length of Basic Tractor (without mulcher) u2013 LGP 3275 mm (128.9 in)
Tractor Height u2013 XL 2845 mm (112 in)
Tractor Height u2013 LGP 2763 mm (108.8 in)
Ground Clearance u2013 XL 332 mm (13 in)
Ground Clearance u2013 LGP 332 mm (13 in)
Specifications u2013 HM518
Overall Width 2122 mm (84 in)
Working Width 1822 mm (72 in)
Length 1354 mm (53 in)
Overall Height 1480 mm (58 in)
Lift Height 787 mm (31 in)
Maximum Tilt 368 mm (14.5 in)
Maximum Angle (either side) 25u00b0
Weight 1450 kg (3197 lb)
Drive Method Polychain belt
Motor Closed loop hydrostatic
Optimum Hydraulic Flow 114 L/min (30 gpm)
Optimum Hydraulic Pressure 407 bar (5900 psi)
Drum Speed Range 2150-2450 rpm
Fixed Teeth Per Drum 38
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 1.6 kg of refrigerant which has a CO2 equivalent of 2.288 metric tonnes.

Standard Equipment

    • Alternator, 12 volt, 120 Amp, heavy duty brushless
    • Alarm, backup
    • Batteries, heavy duty, maintenance free, 1,500 CCA
    • Diagnostic connector
    • Horn, electric
    • Lights, halogen, 2 front and 2 rear
    • Starter, electric, 12 volt
    • ROPS/FOPS cab
    • Cab, polycarbonate windows and air conditioning
    • Seat, air suspended, cloth
    • Seatbelt, retractable 76 mm (3 in)
    • Foot pads, dash
    • Electronic Monitoring System with:
      – Gauges for engine coolant temperature, hydraulic oil temperature and fuel level
      – Travel speed limiter, electronic
      – Engine RPM and gear display
      – Hour meter, electric
      – Engine air cleaner service indicator, electronic
      – Water-in-fuel indicator, electronic
      – Mulcher drum speed and direction bar
    • Slope Indicate
    • Throttle switch, rotary
    • Controls, seat mounted, fore/aft adjustment
    • Armrests, adjustable
    • Mirror, rearview, inside
    • Single pedal combining deceleration and braking functions
    • Independent forward/reverse speed settings
    • Power port, 12 volt
    • Coat hook
    • Storage compartment
    • Cup holder
    • Floor mat, rubber, heavy duty
    • Hydraulics, 3 valve
    • Load sensing hydraulics
    • Single lever, three function control
    • Hydraulic pump and oil
    • Closed-loop hydrostatic circuit
    • Axial Piston variable displacement pump and motor
    • Cat C4.4 ACERT diesel engine, turbocharged, Tier 4 Final/Stage IV certified with aftertreatment
    • Aftercooler, Air-to-Air (ATAAC)
    • Aluminum bar plate cooling system (radiator, power train)
    • Air cleaner with precleaner, automatic dust ejection and under-hood intake
    • Dual path, closed-loop hydrostatic transmission
    • Electric fuel priming pump
    • Fuel/water separator
    • SALT Undercarriage
    • 6 roller track frame
    • Track rollers, lifetime lubricated
    • Carrier rollers
    • Track adjusters, hydraulic
    • Guards, front/rear guiding
    • Master link
    • Cat Product Link™ PL641 Cellular
    • C-Frame, VPAT, hydraulic cylinders and lines
    • Lockable engine enclosures
    • Front pull device
    • Ecology drains (engine, power train and implement oil and engine coolant)
    • Scheduled oil sampling ports (engine, power train implement oil)
    • Vandalism protection
    • Hinged radiator grill
    • Rearview camera
    • Extended life coolant, –37° C (–35° F)
    • Guard, track guiding, center
      • Screen, side, cab
      • Sweeps, front
      • Sweeps, rear
      • Heavy duty crankcase guard

    Optional Equipment

      • Radio, AM/FM, Bluetooth
    • GUARDS
      • Guard, track guiding, center
      • Screen, rear, cab
      • Screen, side, cab
      • Sweeps, front
      • Sweeps, rear
    • BLADES
      • VPAT XL blade
      • VPAT LGP blade
      • VPAT Intermediate blade
      • Counterweight, rear
      • Winch, retrieval
      • Heater, engine, coolant, 120 volt
      • Starting aid, ether
      • Extended life coolant, –50° C (–58° F)
      • Winch, retrieval

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