CAT CLASS: HQ-10222

Up to 90 hp Dozer

Up to 90 hp dozers represent the entry point in the crawler dozer ladder, spanning machines from approximately 42 to 78 horsepower and 7 to 12 tonnes operating weight. These compact crawlers handle backfill, fine grading, and landscape shaping on residential and light commercial sites where larger machines cannot access or would cause excessive disturbance. They trailer behind one-ton pickup trucks, making them the most mobile dozer class.

Models

Brands

Cat classes

Pick a size class — capacity and reach differ across the range.

Key specifications

Specification	Typical range	What it means
Engine power	43–78 hp	Sufficient for residential grading and utility backfill without the fuel consumption of larger crawlers.
Operating weight	15,653–26,786 lb (7,100–12,150 kg)	Light enough to trailer behind one-ton trucks yet heavy enough for stable pushing and compaction.
Blade capacity	Varies by model	Sized for fine grading passes and shallow cuts rather than large-volume earthmoving.

How to choose

Up to 90 hp dozers suit confined residential lots, landscape projects, and utility trenches where ground pressure must remain low and access is restricted. Operators choose this class when the dozer must move frequently between small sites or navigate through gates and narrow rights-of-way. For larger subdivisions, commercial pads, or land clearing beyond an acre, the 90-130 hp Dozer class provides substantially greater productivity and blade capacity without requiring lowboy transport. This smallest class excels where mobility and minimal site impact outweigh hourly production rates.

What this size handles

Backfilling residential foundation walls and basement excavations
Final grading of home lots and small commercial pads
Shaping berms and swales in landscape installations
Spreading topsoil and seedbed preparation on residential sites
Utility trench backfill in subdivisions and municipal projects
Light land clearing and brush management on acreages

Safety & operation

ROPS (rollover protective structure) and FOPS (falling object protective structure) are standard on modern machines
Steep slopes and soft ground require particular attention due to relatively narrow track gauge on compact models
Blade and ripper visibility is limited in reverse; spotters or cameras assist in congested sites
Operators require competency in grade control to avoid over-cutting or damaging underground utilities

Transport & logistics

Trailers behind one-ton pickup trucks on tandem-axle tagalongs rated for 12,000–14,000 kg
Ramps and deck height allow loading without auxiliary equipment on most models
Transport width typically remains under 2.4 m, avoiding oversize permits on highways

Power & supply

Diesel fuel, typically 30–80 litres per eight-hour shift depending on load and engine size
Onboard fuel tanks generally provide half- to full-day operation between refueling
DEF (diesel exhaust fluid) required on newer Tier 4 Final emission-compliant models

Frequently asked

What distinguishes this class from skid steers with dozer blades?

Crawler dozers provide continuous ground contact and superior pushing power for grading and compaction. Skid steers excel at loading and short-distance material movement but lack the drawbar pull and stability for sustained dozing work.

When does a project require the next size up?

The 90-130 hp class becomes necessary when blade capacity limits productivity on cuts deeper than 0.3 m, when pushing distances exceed 30 m, or when the dozer must also handle land clearing with root rake or brush removal attachments.

Can this size class handle finish grading to specification?

Yes, with skilled operation and grade control systems. The lighter weight and responsive controls make this class well-suited to final grades within ±25 mm tolerance, common in residential and light commercial applications.

Compare popular models

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Normalised to the same units. A dash means the figure was not published.

Model	Operating weight	Max dig depth	Max reach	Engine power
John Deere 450P	15,633 lb (7,091 kg)	44.2 ft (13.5 m)	-	57 hp
John Deere 550P	26,791 lb (12,152 kg)	-	28.3 ft (8.6 m)	89 hp
Caterpillar D3	20,640 lb (9,362 kg)	-	63.8 ft (19.4 m)	78 hp