- Category: Crawler Dozers ➔
- Manufacturer: Caterpillar ➔
- Model: D4H ➔
The Caterpillar D4H is a crawler dozer designed for grading, pushing, and site preparation in construction, land clearing, and utility work. Part of Caterpillar's D4 series, the D4H is known for its compact size, maneuverability, and suitability for finish grading and general earthmoving tasks. It typically features a diesel engine, hydrostatic or powershift drivetrain depending on configuration, and a steel undercarriage built for tracked operation on uneven terrain. The D4H is used in roadwork, landscaping, agriculture, and light-to-medium duty earthmoving applications. Its crawler design provides traction, stability, and low ground pressure on soft or rough surfaces.
Dimensions
| Height - Top of Cab | 2 ft (1 m)
|
| Overall Length | 8 ft (2 m)
|
| Overall Width | 10 ft (3 m)
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| Reach of Grapple at Ground Level | 9 ft (3 m)
|
Engine
| Aspiration | 27293.3
|
| Displacement | turbocharged cu in
|
| Engine Model | 99
|
| Gross Power | 90 hp (67 kw)
|
| Net Power | 2,200 hp (1,641 kw)
|
| Power Measured @ | 317.4 rpm
|
Hydraulic System
| Pump Flow | 2,700 gpm (10,220 lpm)
|
| Pump Type | 25
|
Operating Specifications
| Alternator Supplied Amperage | power shift
|
| Operating Voltage | 35 amps
|
| Operating Weight | 24 V lbs (11 kg)
|
Transmission
| Max Speed - Forward | 8 mph (12 kph)
|
| Max Speed - Reverse | 18 mph (29 kph)
|
| Number of Forward Gears | 3
|
| Number of Reverse Gears | 6.3
|
| Transmission Type | 3
|
Undercarriage
| Ground Contact Area | variable displacement piston pump senses implement load cu in
|
| Length of Track on Ground | 3,204 ft (977 m)
|
| Number of Track Rollers per Side | 3751.1
|
| Width of Shoes | 7 in (18 cm)
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