- Load Height - Std: 14.15 ft / 4310 mm
- Reach From Swivel - Std: 21.67 ft / 6604 mm
- Dig Depth - Std: 17.13 ft / 5219 mm
- Reach At Load Height - Std: 6.66 ft / 2027 mm
Published dimensions and weight
Caterpillar 446B
The Caterpillar 446B is a loader backhoe of about 8.9 t, powered by a 102 hp engine.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale

01Dimensions referenceLength × width × height
02Operating Weight 4wd19599.1 lb8890 kg
03Selected published values119
Loader backhoes are commonly used for digging, trenching, loading and general site work with one carrier. Published rows for Caterpillar 446B include published bucket capacity of 1.44 yd3 / 1.11 m3, published engine power of 110 hp / 82.1 kw, published hydraulic flow of 47.1 gal/min / 178 L/min. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Load Height - Std” field (14.15 ft / 4310 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Reach From Swivel - Std” field (21.67 ft / 6604 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Dig Depth - Std” field (17.13 ft / 5219 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Backhoe
Load Height - Std14.15 ft4310 mm
Reach From Swivel - Std21.67 ft6604 mm
Dig Depth - Std17.13 ft5219 mm
Reach At Load Height - Std6.66 ft2027 mm
Bucket Rotation169 degrees169 degrees
Loading Reach - Standard6.66 ft2.03 m
Bucket Dig Force - Ext15150 lb6871.93 kg
Bucket Dig Force - Standard15200 lb6894.61 kg
Bucket Dig Force - Std15200 lb6894.61 kg
Dig Depth - Ext21.42 ft6528 mm
Dig Depth - Standard17.2 ft5.25 m
E-Stick Extended (1)21.5 ft6.56 m
E-Stick Extended (2)25.75 ft7.85 m
E-Stick Extended (3)15150 lb6871.93 kg
E-Stick Extended (4)7830 lb3551.63 kg
E-Stick Extended (5)4600 lb2086.53 kg
E-Stick Retracted (1)17 ft5.19 m
E-Stick Retracted (2)21.5 ft6.56 m
E-Stick Retracted (3)15150 lb6871.93 kg
E-Stick Retracted (4)11200 lb5080.24 kg
E-Stick Retracted (5)13660 lb6196.08 kg
Load Height - Ext16.06 ft4894 mm
Loading Height - Standard14.2 ft4.33 m
Reach At Load Height - Ext10.7 ft3261 mm
Reach From Swing Pivot - Standard21.66 ft6.61 m
Reach From Swivel - Ext25.82 ft7868 mm
Stick Dig Force - Standard10800 lb4898.8 kg
Stick Lift At 2440 Mm (8 Ft) - Standard13540 lb6141.65 kg
Dimensions
Transport Length25.12 ft7654 mm
Transport Width7.99 ft2434 mm
Transport Height13.76 ft4193 mm
Wheelbase7.33 ft2233 mm
Ground Clearance1.09 ft332 mm
Height To Top Of Suspended Cab9.4 ft2864 mm
Loader
Clearance At Max Dump Height8.86 ft2699 mm
Reach At Max Dump Height2.85 ft868 mm
Dig Depth6.38 in162 mm
Dump Reach At Maximum Angle - Single Tilt3 ft0.92 m
Lift Capacity At Full Height - Single Tilt8610 lb3905.44 kg
Bucket Breakout Force - Single Tilt11610 lb5266.21 kg
Bucket Capacity - General Purpose1.75 yd31.34 m3
Bucket Breakout Force12589.3 lb56 kN
Bucket Capacity1.44 yd31.11 m3
Dig Depth - Single Tilt6.4 in162.56 mm
Bucket Width - General Purpose96 ft96 ft
Lift Capacity At Full Height8752.36 lb3970 kg
Bucket Width95.83 in2434 mm
Dump Height At Maximum Angle - Single Tilt8.9 ft2.72 m
Engine
Number Of Cylinders44
Engine Make22362236
Engine Model3114 DIT3114 DIT
Gross Power110 hp82.1 kw
Net Power102 hp76.1 kw
Power Measured @2200 rpm2200 rpm
Displacement268 cu in4.4 L
Bore4.2 in105 mm
Stroke5 in127 mm
Net Power - Sae J1349102 hp76.1 kw
Gross Power - Sae J1995110 hp82.1 kw
Net Torque Rise - 1,400 Rpm - Standard32.6 %32.6 %
Engine Model - StandardCat 3114T DieselCat 3114T Diesel
Net Power (Optional) - Sae J1349101 hp75.4 kw
Net Power (Optional) - Iso 9249102 hp76.1 kw
Net Power (Optional) - Iso 1585102 hp76.1 kw
Net Power (Optional) - Eec 80/1269102 hp76.1 kw
Net Power (Optional) - Din 70020107PS107PS
Operational
Fuel Capacity33.1 gal125 L
Operating Weight 4wd19599.1 lb8890 kg
Turning Radius18.8 ft5700 mm
Tire Size Front - 2wd / 4wd14.5/75 x16.1,10PR,F3 / 12.5x20,10PR,R414.5/75 x16.1,10PR,F3 / 12.5x20,10PR,R4
Rear Tires Size 2wd/4wd21Lx24,12PR,R421Lx24,12PR,R4
Power Train
Forward - 2nd5.5 mph8.9 km/h
Forward - 3rd7.2 mph11.6 km/h
Forward - 4th11.7 mph18.9 km/h
Reverse - 2nd7.2 mph11.6 km/h
Reverse - 3rd12.8 mph20.6 km/h
Auto-Shift - Optional - Forward 1st3.5 mph5.7 km/h
Forward - 5th19.6 mph31.6 km/h
Auto-Shift - Optional - Reverse 1st3.5 mph5.7 km/h
Transmission
Transmission Typeauto-shiftauto-shift
Number Of Forward Gears44
Number Of Reverse Gears33
Max Speed - Forward19.6 mph31.5 km/h
Max Speed Reverse12.9 mph20.6 km/h
Weights
Operating Weight - Maximum19603.5 lb8892 kg
Operating Weight - Nominal19603 lb8891.8 kg
Counterweights - Option 135 lb15.9 kg
Hydraulic System
Stroke1 ft281 mm
Pump TypeVariable - flow, axial pistonVariable - flow, axial piston
Circuit TypeClosed - centerClosed - center
Pump Capacity At 2,200 Rpm47 gal/min47 gal/min
System Pressure3250 psi3250 psi
Steering TypeFront WheelFront Wheel
Power SteeringHydrostaticHydrostatic
Rod Diameter2.31 in2.31 in
4wd Cylinder - Bore3.25 in3.25 in
Brake SystemFully enclosed, hydraulic, multiple diskFully enclosed, hydraulic, multiple disk
2wd Cylinder - Bore3.3 in82.6 mm
Hydraulic
Pump TypeLSPC closed centerLSPC closed center
Pump Flow Capacity47.1 gal/min178 L/min
Relief Valve Pressure3248.9 psi22400 kPa
Standards
Cab - RopsSAE J394, SAE J1040 Apr 88, ISO 3471 1986SAE J394, SAE J1040 Apr 88, ISO 3471 1986
BrakesSAE J1473 October 1990 and ISO 3450 1985SAE J1473 October 1990 and ISO 3450 1985
Cab - SoundANSI/SAE J1166 May 90 is 81 dB (A)ANSI/SAE J1166 May 90 is 81 dB (A)
Exterior SoundSAE J88 Jun 86, is 76dB (A)SAE J88 Jun 86, is 76dB (A)
Axle Ratings
Front Axle (4wd) - Static21230 lb9629.8 kg
Rear Axle - Static20194 lb9159.9 kg
Front Axle (2wd) - Static21230 lb9629.8 kg
Service Refill
Cooling System - A/C7.9 gal30 L
Fuel Tank33 gal125 L
Engine Oil - With Filter2.9 gal11 L
Rear Axle8.2 gal31.1 L
Front Axle (4wd)2.5 gal9.5 L
Front Axle - Planetaries0.3 gal0.8 L
Hydraulic System41 gal155.3 L
Hydraulic Tank15.1 gal57.2 L
Transmission - Auto-Shift - 2wd6.9 gal26.2 L
Operating Specifications - Backhoe
Turning Circle - Outside - Front Wheels28.8 ft8.8 m
Turning Circle - Outside, Widest Loading Bucket37.3 ft11.4 m
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