Caterpillar 637D Scraper

Bowl

Heaped Capacity 31 cu yd (24 cu m)
Max Depth of Cut 19 in (49 cm)
Rated Payload 74,957 lbs (34,000 kg)
Struck Capacity 21 cu yd (16 cu m)
Width of Cut 12 ft (4 m)

Dimensions

Overall Height 14 ft (4 m)
Overall Length 49 ft (15 m)
Overall Width 13 ft (4 m)
Wheelbase 29 ft (9 m)

Operating Specifications

Fuel Capacity 371 gal (1,403 l)
Tire Size 33.25-35 38PR (E-3)

Scraper Engine

Displacement 641 cu in (10,501 cu cm)
Make Caterpillar
Model 3306
Net Power 255 hp (190 kw)
Power Measured @ 2200 rpm

Tractor Engine

Displacement 1,099 cu in (18,001 cu cm)
Make Caterpillar
Model 3408
Net Power 450 hp (336 kw)
Power Measured @ 2000 rpm

Transmission

Max Speed Forward 32 mph (51 kph)
Number of Forward Gears 8

Weights

Front Axel – loaded 90,566 lbs (41,080 kg)
Front Axle – empty 64,768 lbs (29,378 kg)
Rear Axle – empty 41,407 lbs (18,782 kg)
Rear Axle – loaded 90,566 lbs (41,080 kg)
Total Operating – empty 106,175 lbs (48,160 kg)
Total Operating – Loaded 181,132 lbs (82,160 kg)
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