Products

446D Backhoe Loader

When the job demands truly BIG power, the Cat 446D is ready. The most demanding backhoe loader jobs like road building and bridge work are just what the 446D is designed to do. You”ll load more, lift more and dig deeper with industry leading hydraulics, high-capacity buckets and heavy-duty, job specific tools. If you have a big job to do, you need a big backhoe loader and the Cat 446D is ready when you are.

Engine 

Units:  US 

Net Power – SAE J1349 

101 hp 

75 kW 

Engine Model (Standard) 

Cat® 3114 DIT 

Cat® 3114 DIT 

Gross Power – SAE J1995 

110 hp 

82 kW 

Net Power – ISO 9249 

102 hp 

76 kW 

Net Power – EEC 80/1269 

102 hp 

76 kW 

Gross Power – ISO 14396 

110 hp 

82 kW 

Net Power (Optional) – ISO 1585 

102 hp 

76 kW 

Net Power – EEC 80/1269 

102 hp 

76 kW 

Net Power – DIN 70020 

107 ps 

107 ps 

Bore 

4.13 in 

105 mm 

Stroke 

5 in 

127 mm 

Displacement 

268 in3 

4.4 L 

Net Torque Rise @ 1400 rpm – Standard 

32.6 % 

32.6 % 

Net Peak Torque @ 1400 rpm – Standard – SAE J1349 

336 lb ft 

455 N·m 

Backhoe 

 

Dig Depth – Standard 

16.8 ft 

5142 mm 

E-Stick Retracted 

17.1 ft 

5207 mm 

E-Stick Extended 

21.2 ft 

6457 mm 

Reach from Swing Pivot – Standard 

21.9 ft 

6636 mm 

E-Stick Retracted 

22 ft 

6697 mm 

E-Stick Extended 

25.11 ft 

7890 mm 

Bucket Rotation 

190 Degrees 

190 Degrees 

Bucket Dig Force – Standard 

16950 lb 

75.4 kN 

E-Stick Retracted 

16230 lb 

72.2 kN 

E-Stick Extended 

16230 lb 

72.2 kN 

Stick Dig Force – Standard 

11430 lb 

50.8 kN 

E-Stick Retracted 

11400 lb 

50.7 kN 

E-Stick Extended 

8230 lb 

36.6 kN 

Stick Lift @ 2440 mm (8 ft) – Standard 

7451 lb 

3379 kg 

E-Stick Retracted 

7343 lb 

3330 kg 

E-Stick Extended 

4836 lb 

2193 kg 

Loading Height – Standard 

14.41 ft 

4392 mm 

E-Stick Retracted 

14.4 ft 

4395 mm 

E-Stick Extended 

16.6 ft 

5068 mm 

Loading Reach – Standard 

6.9 ft 

2092 mm 

E-Stick Retracted 

6.6 ft 

2004 mm 

E-Stick Extended 

10.5 ft 

3187 mm 

Weights 

 

Operating Weight – Maximum 

25357 lb 

11500 kg 

Operating Weight – Nominal 

19666 lb 

8939 kg 

Cab, ROPS/FOPS 

670 lb 

304 kg 

Extendible Stick (no weights) 

661 lb 

300 kg 

Counterweights (Option 1) 

1500 lb 

682 kg 

Air Conditioning 

103 lb 

47 kg 

MP Bucket 1.1 m3 (1.5 yd3) w/o Fold-Over Fork 

619 lb 

281 kg 

Counterweight 

1000 lb 

454 kg 

Loader 

 

Bucket Capacity – General Purpose 

1.5 yd3 

1.15 m3 

Bucket Width – General Purpose 

8 ft 

2434 mm 

Dump Height @ Max Angle – Single Tilt 

8.92 ft 

2720 mm 

Dump Reach @ Max Angle – Single Tilt 

2.81 ft 

855 mm 

Dig Depth – Single Tilt 

6 in 

153 mm 

Lift Capacity @ Full Height – Single Tilt 

9572 lb 

4351 kg 

Bucket Breakout Force – Single Tilt 

13838 lb 

61.7 kN 

Hydraulic System 

 

Circuit Type 

Closed-center, load sensing 

Closed-center, load sensing 

Pump Capacity (@ 2200 rpm) 

47.1 gal/min 

178 L/min 

System Pressure 

3550 psi 

24500 kPa 

System Pressure – Backhoe 

3550 psi 

24500 kPa 

System Pressure – Loader 

3550 psi 

24500 kPa 

Pump Type 

Variable-flow, axial piston, load sensing, closed center system 

Variable-flow, axial piston, load sensing, closed center system 

Steering Type 

Ackerman 

Ackerman 

Power Steering 

Hydrostatic, Hand Metering Unit 

Hydrostatic, Hand Metering Unit 

4WD Cylinder – Bore 

3.25 in 

82.55 mm 

Stroke 

11.1 in 

281 mm 

Rod Diameter 

2.125 in 

53.98 mm 

Brake System 

Fully enclosed, oil immersed, inboard, multiple disc 

Fully enclosed, oil immersed, inboard, multiple disc 

Axle Oscillation 

11 Degrees 

11 Degrees 

Power Train 

 

Auto-Shift (opt), Forward 1st 

3.5 mph 

5.6 km/h 

Forward 2nd 

5.5 mph 

8.9 km/h 

Forward 3rd 

7.2 mph 

11.6 km/h 

Forward 4th 

11.7 mph 

18.8 km/h 

Forward 5th 

19.6 mph 

31.5 km/h 

Auto-Shift (opt), Reverse 1st 

3.5 mph 

5.6 km/h 

Reverse 2nd 

7.2 mph 

11.6 km/h 

Reverse 3rd 

12.8 mph 

20.6 km/h 

Operating Specifications – Backhoe 

 

Turning Circle: outside, front wheels 

28.8 ft 

8.8 m 

Turning Circle: outside, widest loading bucket 

37.4 ft 

11.4 m 

Axle Ratings 

 

Front Axle, 2WD, Static 

21230 lb 

9630 kg 

Front Axle, 4WD, Static 

21230 lb 

9630 kg 

Dynamic 

21230 lb 

9630 kg 

Rear Axle, Static 

20194 lb 

9160 kg 

Dynamic 

20194 lb 

9160 kg 

Service Refills 

 

Cooling System, A/C 

7.9 gal 

30 L 

Fuel Tank 

33 gal 

125 L 

Engine Oil w/Filter 

2.9 gal 

11 L 

Transmission, 2WD, Auto Shift 

6.9 gal 

26 L 

Transmission, AWD, Auto Shift 

6.9 gal 

26 L 

Rear Axle 

8.2 gal 

31 L 

Front Axle, 4WD 

2.5 gal 

9.3 L 

Front Axle, Planetaries 

.21 gal 

.8 L 

Hydraulic System 

41 gal 

154 L 

Hydraulic Tank 

15.1 gal 

57 L 

Standards 

 

Brakes 

SAE J1473 and ISO 3450 

SAE J1473 and ISO 3450 

Cab – ROPS 

SAE J394, SAE J1040, ISO 3471 

SAE J394, SAE J1040, ISO 3471 

Cab – Sound 

ANSI/SAE J1166 is 81 dB(A) 

ANSI/SAE J1166 is 81 dB(A) 

Exterior Sound 

SAE J88, is 76dB(A) 

SAE J88, is 76dB(A) 

Tires 

 

Front 2WD Standard Size 

14.5/75-16.1 

14.5/75-16.1 

Standard Ply 

10 

10 

Front 4WD Standard Size 

12.5-20, R4 10 PR 

12.5-20, R4 10 PR 

Rear 4WD Standard Size 

21L-24, R4 16 PR 

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