Overview
The Caterpillar 631D 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 450 hp, capacity of 31.0 yd³, travel speed of 31.0 mph and fuel capacity of 250.0 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 631D Motor Scraper against similar motor scraper models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Net Power
450
hp
Overall Length
46.75
in
Overall Width
13
ft
Full Specifications
15 specs
Dimensions
Model
3408
Net Power
450 hp / 335.6 kW
Overall Height
13.67 ft / 4.17 m
Overall Length
46.75 in / 1,187 mm
Overall Width
13 ft / 3.96 m
Total Operating - Empty
88,900 lb / 40,324 kg
Wheelbase
28.80 ft / 8.78 m
Width Of Cut
11.50 ft / 3.51 m
Engine
Displacement
1,099 cu in / 18.0 L
Fuel Capacity
250 gal / 946.4 L
Heaped Capacity
31 yd³ / 23.70 m³
Max Depth Of Cut
19 ft / 5.79 m
Max Speed Forward
31 mph / 49.9 km/h
Power Measured @
2,000 rpm
Struck Capacity
21 yd³ / 16.06 m³
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Frequently Asked Questions
How powerful is the Caterpillar 631D Motor Scraper engine? +
The Caterpillar 631D Motor Scraper produces 450 hp (335.6 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 631D Motor Scraper compare to similar Motor Scraper models? +
You can compare the Caterpillar 631D 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.