The Caterpillar 420D is a backhoe loader designed for digging, loading, trenching, and material handling on construction, utility, and municipal job sites. It combines a front loader bucket with a rear backhoe attachment, providing versatility for excavation and site preparation tasks. The 420D is part of Caterpillar's 420 series and is commonly used for general earthmoving, roadwork, landscaping, and maintenance applications. Typical features include a diesel engine, four-wheel drive configuration, hydraulic controls, and an enclosed operator station on many units. The model is recognized for its balanced performance, maneuverability, and compatibility with a range of worksite attachments.
| 4th Gear Fwd mph (kmh) | 20.4 (32.8) Starting 2004 Model Year |
| Breakout Force lbs (kgs) | 10,131 (4,595) Starting 2004 Model Year |
| Digging Depth ft (m) | 18.1 (5.5) Starting 2004 Model Year |
| Lift Capacity lbs (kgs) | 6,385 (2,896) Starting 2004 Model Year |
| Loading Height ft (m) | 13.8 (4.2) Starting 2004 Model Year |
| Operating Weight lbs (kg) | 16,217 (7,356) Starting 2004 Model Year |
| SAE Net hp (kW) | 85 (63) Starting 2004 Model Year |
| Bucket Dig Force | 14,712.00 lbs (6,673.26 kg)
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| Bucket Dig Force - Extended | 14,586.00 lbs (6,616.11 kg)
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| Bucket Rotation | 205 degrees
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| Dig Depth | 14.50 ft (4.42 m)
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| Dig Depth - Extended | 18.10 ft (5.52 m)
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| E-Stick Extended (1) | 18.10 ft (5.52 m)
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| E-Stick Extended (2) | 21.90 ft (6.68 m)
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| E-Stick Extended (3) | 14,586.00 lbs (6,616.11 kg)
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| E-Stick Extended (4) | 6,188.00 lbs (2,806.83 kg)
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| E-Stick Extended (5) | 4,121.00 lbs (1,869.26 kg)
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| E-Stick Retracted (1) | 14.70 ft (4.48 m)
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| E-Stick Retracted (2) | 18.80 ft (5.73 m)
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| E-Stick Retracted (3) | 14,586.00 lbs (6,616.11 kg)
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| E-Stick Retracted (4) | 8,421.00 lbs (3,819.71 kg)
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| E-Stick Retracted (5) | 8,936.00 lbs (4,053.31 kg)
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| Load Height - Extended | 13.70 ft (4.18 m)
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| Loading Height | 11.90 ft (3.63 m)
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| Loading Reach | 5.70 ft (1.74 m)
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| Reach at Load Height - Extended | 2.50 ft (0.76 m)
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| Reach from Swing Pivot | 18.50 ft (5.64 m)
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| Reach From Swivel | 18.60 ft (5.67 m)
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| Reach From Swivel - Extended | 21.90 ft (6.68 m)
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| Stick Dig Force | 8,593.00 lbs (3,897.72 kg)
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| Stick Lift at 2440 mm (8 ft) | 10,538.00 lbs (4,779.96 kg)
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| Bucket Breakout Force | 10,138.90 lbs (4,598.93 kg)
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| Bucket Breakout Force - Single Tilt | 10,131.00 lbs (4,595.35 kg)
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| Bucket Capacity | 1.30 cu yd (0.99 cu m)
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| Bucket Capacity - General Purpose | 1.30 cu yd (0.99 cu m)
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| Bucket Width | 89.10 in (226.31 cm)
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| Bucket Width - General Purpose | 89.00 ft (27.13 m)
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| Clearance at Max Dump Height | 8.40 ft (2.56 m)
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| Dig Depth | 5.40 in (13.72 cm)
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| Dig Depth - Single Tilt | 5.00 in (12.70 cm)
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| Dump Height at Maximum Angle - Single Tilt | 8.40 ft (2.56 m)
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| Dump Reach at Maximum Angle - Single Tilt | 2.80 ft (0.85 m)
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| Lift Capacity at Full Height - Single Tilt | 6,385.00 lbs (2,896.19 kg)
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| Reach at Max Dump Height | 2.80 ft (0.85 m)
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| Cab - ROPS | SAE J397/SAE J1040 May 1994/ISO 3471 1994
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| Cab - Sound | ANSI/SAE J1166 Oct 98 is 78.5 dB(A)
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| Exterior Sound | SAE J88 April 95 is 73.0 dB(A)
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| Front Axle (2WD) - Static | 30,319.00 lbs (13,752.48 kg)
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| Front Axle (4WD) - Static | 27,029.00 lbs (12,260.16 kg)
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| Rear Axle - Static | 61,233.00 lbs (27,774.86 kg)
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