Overview
The Caterpillar 621S Motor Scraper is a motor scraper listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 280 hp, capacity of 20.1 yd³, travel speed of 27.6 mph and fuel capacity of 144.0 gal. This model can be reviewed for high-volume earthmoving, haul road production, cut-and-fill work, and scraper fleet comparison. Use the full specifications table to compare the Caterpillar 621S Motor Scraper against similar motor scraper models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Gross Power
280
hp
Rated Payload
47,999.10
lb
Overall Length
42.20
in
Overall Width
11.39
ft
Full Specifications
21 specs
Dimensions
Front Axel - Loaded
56,278 lb / 25,527 kg
Gross Power
280 hp / 208.8 kW
Model
3306
Overall Height
12.17 ft / 3.71 m
Overall Length
42.20 in / 1,072 mm
Overall Width
11.39 ft / 3.47 m
Rated Payload
47,999 lb / 21,772 kg
Total Operating - Empty
62,349 lb / 28,281 kg
Total Operating - Loaded
110,348 lb / 50,053 kg
Wheelbase
25.08 ft / 7.64 m
Width Of Cut
10 ft / 3.05 m
Engine
Displacement
641 cu in / 10.5 L
Front Axle - Empty
40,528 lb / 18,383 kg
Fuel Capacity
144 gal / 545.1 L
Heaped Capacity
20.10 yd³ / 15.37 m³
Max Depth Of Cut
14.30 ft / 4.36 m
Max Speed Forward
27.60 mph / 44.4 km/h
Number of Forward Gears
8
Rear Axle - Empty
21,821 lb / 9,898 kg
Rear Axle - Loaded
54,071 lb / 24,526 kg
Struck Capacity
14 yd³ / 10.70 m³
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Frequently Asked Questions
How powerful is the Caterpillar 621S Motor Scraper engine? +
The Caterpillar 621S Motor Scraper produces 280 hp (208.8 kW) of engine power. This output is typical for its weight class and designed to handle demanding Motor Scraper work cycles efficiently.
How does the Caterpillar 621S Motor Scraper compare to similar Motor Scraper models? +
You can compare the Caterpillar 621S Motor Scraper side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.