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Caterpillar 420D Backhoe Loader

Caterpillar 420D Engine

Engine Model ............... Caterpillar 3054C DIT
Engine Type ............... Four-cylinder, direct injection turbocharged diesel
Number of Cylinders ............... 4, In-Line
Displacement, cu in (L) ............... 268 (4.40)
Engine Bore, in (mm) ............... 4.13 (105.0)
Engine Stroke, in (mm) ............... 5.00 (127.0)
Aspiration ............... Turbocharged
Maximum Engine Power, hp (kW) ............... 93.0 (69.0)
Rated Engine Power, hp (kW) ............... 89.0 (66.0)
Rated Engine Speed, rpm ............... 2200
Maximum Torque, Nm (lb-ft) ............... 386 (285)
Torque Speed, rpm ............... 1400
Compression ............... 16.2:1
Emission ............... Tier 2
Fuel System ............... Direct Injection
Rotation ............... Counterclockwise
Air Cleaner ............... Dry-type axial seal
Fuel Tank Capacity, gal (L) ............... 34.0 (128.0)
Oil Capacity, qts (L) ............... 8.0 (7.6)
Coolant Capacity, qts (L) ............... 16.8 (15.9)
Electrical System Rating, Volts ............... 12
Battery Rating ............... 880 CCA

Cat 420D Transmission

Transmission Type (Std) ............... Power Shuttle
Gearbox Type ............... 4F/4R, Full synchromesh
Number of Forward Gears ............... 4
Number of Reverse Gears ............... 4
Torque Converter ............... Single-stage
Torque Converter Ratio ............... 2.63:1
Oil Capacity, qts (L) ............... 19.1 (18.0)
Maximum Forward Speed, mph (kph) ............... 20.4 (32.8)
Maximum Reverse Speed, mph (kph) ............... 20.4 (32.8)

Transmission Type (Opt) ............... 5F/3R, Auto Shift
Number of Forward Gears ............... 5
Number of Reverse Gears ............... 3
Torque Converter ............... Single-stage
Oil Capacity, qts (L) ............... 20.0 (19.0)
Maximum Forward Speed, mph (kph) ............... 20.0 (32.0)
Maximum Reverse Speed, mph (kph) ............... 14.5 (23.0)

Hydraulic System

Hydraulic System Type ............... Closed center load sensing
Hydraulic Pump Type ............... Variable displacement, axial piston
Hydraulic Pump Flow, gpm (Lpm) ............... 43.0 (163.0)
Hydraulic Pressure, Bar (psi) ............... 228 (3300)
Hydraulic System Capacity, gal (L) ............... 21.0 (79.5)
Valves Type ............... Pressure-compensated

Cat 420D Wheels and Tires

Drive Wheels ............... 2WD/4WD
Steering Configuration ............... Front Steer
Steering System ............... Hydrostatic
Steering Cylinder ............... One, Double-acting
Steering Cylinder Bore (2WD/4WD), in (mm) ............... 2.75 (70) / 2.56 (65)
Steering Cylinder Stroke (2WD/4WD), in (mm) ............... 8.9 (224) / 8.3 (211)
Steering Cylinder Rod Diameter (2WD/4WD), in (mm) ............... 1.75 (44) / 1.43 (36)
Service Brakes ............... Inboard, oil-immersed, multiple disc
Parking Brake ............... Mechanical, independent
Front Tire Size (2WD) ............... 11L-16 12PR F3
Front Tire Size (4WD) ............... 12.5/80-18 10PR
Rear Tire Size (2WD) ............... 19.5L-24 12PR R4
Rear Tire Size (4WD) ............... 21L-24 12PR R4
Front Tire Size (4WD, Radial) ............... 335/80 R18
Rear Tire Size (4WD, Radial) ............... 19.5x24
Front Track Width, in (mm) ............... 73.9 (1870)
Rear Track Width, in (mm) ............... 67.7 (1714)

Dimensions and Weight

Wheelbase ............... 83 in (2100 mm)
Transport Length ............... 23 ft 1 in (7019 mm)
Overall Length, (Loader on ground) ............... 23 ft (6999 mm)
Transport Height ............... 11 ft 9 in (3585 mm)
Height (Cab) ............... 109.5 in (2770 mm)
Height (Exhaust) ............... 105.5 in (2670 mm)
Overall Width ............... 93 in (2352 mm)
Ground Clearance ............... 11.7 in (297 mm)
Turning Radius ............... 17 ft 7 in (5350 mm)
Weight (2WD) ............... 15730 lbs (7150 kg)
Weight (4WD) ............... 16760 lbs (7260 kg)
Weight (Maximum) ............... 21560 lbs (9800 kg)

Cat 420D Loader Specifications

Dimensions and Performance Data

Bucket Hinge Pin, Maximum Height (2WD) ............... 10 ft 9 in (3266 mm)
Bucket Hinge Pin, Maximum Height (4WD) ............... 10 ft 11 in (3338 mm)
Dump Angle at Full Height ............... 43 degrees
Dump Clearance at Full Height ............... 8 ft 4 in (2544 mm)
Dump Reach at Full Height ............... 33 in (835 mm)
Maximum Bucket Rollback at Ground Level ............... 40 degrees
Digging Depth ............... 5.3 in (135 mm)
Maximum Grading Angle ............... 106 degrees
Maximum Operating Height ............... 13 ft 7 in (4146 mm)
Lift Capacity at Maximum Height ............... 6385 lbs (2896 kg)
Breakout Force ............... 10131 lbs (4605 kg)
Loader Weight ............... 950 lbs (430 kg)

Loader Buckets

Width, in (mm) ............... 89 (2260)
Height, in (mm) ............... 34.3 (871)
Length, in (mm) ............... 42.1 (1095)
Capacity (Struck), cu.ft (m3) ............... 28.4 (0.81)
Capacity (Heaped), cu.ft (m3) ............... 33.6 (0.96)
Weight, lb (kg) ............... 905 (410)

Width, in (mm) ............... 95 (2400)
Height, in (mm) ............... 33.8 (860)
Length, in (mm) ............... 35.5 (970)
Capacity (Struck), cu.ft (m3) ............... 29.2 (0.84)
Capacity (Heaped), cu.ft (m3) ............... 35.0 (1.00)
Weight, lb (kg) ............... 1180 (535)

Width, in (mm) ............... 89.1 (2262)
Height, in (mm) ............... 34.8 (884)
Length, in (mm) ............... 36.4 (924)
Capacity (Struck), cu.ft (m3) ............... 31.2 (0.89)
Capacity (Heaped), cu.ft (m3) ............... 37.5 (1.07)
Weight, lb (kg) ............... 1010 (459)

Cat 420D Backhoe Specifications

Dimensions and Performance Data (Standard Stick)

Maximum Digging Depth ............... 14 ft 5 in (4390 mm)
Digging Depth, 24 in (610 mm) Flat Bottom ............... 14 ft 4 in (4362 mm)
Reach From Swing Pivot at Ground Line ............... 18 ft 6 in (5650 mm)
Loading Height ............... 11 ft 10 in (3613 mm)
Loading Reach ............... 5 ft 8 in (1732 mm)
Maximum Operating Height ............... 17 ft 11 in (5450 mm)
Swing Arc ............... 180 degrees
Bucket Rotation ............... 205 degrees
Stabilizer Spread (Operating Position) ............... 10 ft 7 in (3219 mm)
Stabilizer Spread (Transport Position) ............... 7 ft 9 in (2352 mm)
Digging Force (Bucket Cylinder) ............... 14712 lbs (6687 kg)
Digging Force (Crowd Cylinder) ............... 8593 lbs (3906 kg)

Dimensions and Performance Data (Extendable Stick)

Maximum Digging Depth ............... 18 ft 1 in (5510 mm)
Digging Depth, 24 in (610 mm) Flat Bottom ............... 18 ft (5474 mm)
Reach From Swing Pivot at Ground Line ............... 21 ft 11 in (6675 mm)
Loading Height ............... 13 ft 8 in (4175 mm)
Loading Reach ............... 9 ft (2736 mm)
Maximum Operating Height ............... 20 ft 2 in (6140 mm)
Swing Arc ............... 180 degrees
Bucket Rotation ............... 205 degrees
Stabilizer Spread (Operating Position) ............... 10 ft 7 in (3219 mm)
Stabilizer Spread (Transport Position) ............... 7 ft 9 in (2352 mm)
Digging Force (Bucket Cylinder) ............... 14586 lbs (6630 kg)
Digging Force (Crowd Cylinder) ............... 6188 lbs (2812 kg)

High Capacity Buckets

Width, in (mm) ............... 18 (457)
Capacity, cu.ft (m3) ............... 6.4 (0.181)
Number of Teeth ............... 4
Weight, lb (kg) ............... 328 (149)

Width, in (mm) ............... 24 (610)
Capacity, cu.ft (m3) ............... 8.5 (0.241)
Number of Teeth ............... 5
Weight, lb (kg) ............... 384 (174)

Width, in (mm) ............... 30 (762)
Capacity, cu.ft (m3) ............... 11.3 (0.320)
Number of Teeth ............... 5
Weight, lb (kg) ............... 423 (192)

Width, in (mm) ............... 36 (914)
Capacity, cu.ft (m3) ............... 13.4 (0.380)
Number of Teeth ............... 6
Weight, lb (kg) ............... 479 (218)

Heavy Duty Rock Buckets

Width, in (mm) ............... 12 (305)
Capacity, cu.ft (m3) ............... 2.5 (0.07)
Number of Teeth ............... 3
Weight, lb (kg) ............... 251 (114)

Width, in (mm) ............... 18 (457)
Capacity, cu.ft (m3) ............... 4.6 (0.127)
Number of Teeth ............... 4
Weight, lb (kg) ............... 304 (138)

Width, in (mm) ............... 24 (610)
Capacity, cu.ft (m3) ............... 7.0 (0.198)
Number of Teeth ............... 5
Weight, lb (kg) ............... 381 (173)

Width, in (mm) ............... 30 (762)
Capacity, cu.ft (m3) ............... 9.5 (0.255)
Number of Teeth ............... 5
Weight, lb (kg) ............... 396 (180)

Width, in (mm) ............... 36 (914)
Capacity, cu.ft (m3) ............... 11.5 (0.311)
Number of Teeth ............... 6
Weight, lb (kg) ............... 451 (205)

Heavy-Duty Buckets

Width, in (mm) ............... 12 (305)
Capacity, cu.ft (m3) ............... 2.8 (0.079)
Number of Teeth ............... 3
Weight, lb (kg) ............... 235 (107)

Width, in (mm) ............... 16 (406)
Capacity, cu.ft (m3) ............... 3.7 (0.105)
Number of Teeth ............... 3
Weight, lb (kg) ............... 270 (123)

Width, in (mm) ............... 18 (457)
Capacity, cu.ft (m3) ............... 4.2 (0.119)
Number of Teeth ............... 4
Weight, lb (kg) ............... 283 (129)

Width, in (mm) ............... 24 (610)
Capacity, cu.ft (m3) ............... 6.2 (0.176)
Number of Teeth ............... 5
Weight, lb (kg) ............... 337 (153)

Width, in (mm) ............... 30 (762)
Capacity, cu.ft (m3) ............... 8.2 (0.232)
Number of Teeth ............... 5
Weight, lb (kg) ............... 375 (170)

Width, in (mm) ............... 36 (914)
Capacity, cu.ft (m3) ............... 10.3 (0.292)
Number of Teeth ............... 6
Weight, lb (kg) ............... 426 (194)