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Caterpillar 637D Scraper

The Caterpillar 637D is a twin-engine wheel tractor-scraper used for high-volume earthmoving, haul, and site preparation work. As part of Caterpillar's scraper lineup, the 637D is designed to load, carry, and spread material efficiently over medium to long distances. It typically features a bowl, apron, ejector, and rear push-pull capability depending on configuration. The machine is used in road construction, mining support, land development, and large-scale grading projects. The 637D is known for its heavy-duty frame, large-capacity bowl, and serviceability. It remains a recognized model in the Caterpillar scraper category for production earthmoving applications.


See all Caterpillar 637Ds for sale

Bowl

Heaped Capacity31 cu yd (24 cu m)
Max Depth of Cut19 in (49 cm)
Rated Payload74,957 lbs (34,000 kg)
Struck Capacity21 cu yd (16 cu m)
Width of Cut12 ft (4 m)

Dimensions

Overall Height14 ft (4 m)
Overall Length49 ft (15 m)
Overall Width13 ft (4 m)
Wheelbase29 ft (9 m)

Operating Specifications

Fuel Capacity371 gal (1,403 l)
Tire Size33.25-35 38PR (E-3)

Scraper Engine

Displacement641 cu in (10,501 cu cm)
MakeCaterpillar
Net Power255 hp (190 kw)
Power Measured @2200 rpm

Tractor Engine

Displacement1,099 cu in (18,001 cu cm)
MakeCaterpillar
Net Power450 hp (336 kw)
Power Measured @2000 rpm

Transmission

Max Speed Forward32 mph (51 kph)
Number of Forward Gears8

Weights

Front Axel - loaded90,566 lbs (41,080 kg)
Front Axle - empty64,768 lbs (29,378 kg)
Rear Axle - empty41,407 lbs (18,782 kg)
Rear Axle - loaded90,566 lbs (41,080 kg)
Total Operating - empty106,175 lbs (48,160 kg)
Total Operating - Loaded181,132 lbs (82,160 kg)

  • Caterpillar 637Ds currently for sale
  • A Caterpillar 637D From Boyd CAT for $31,500.00 USD
  • A Caterpillar 637D From Boyd CAT for $31,500.00 USD
  • A Caterpillar 637D From Boyd CAT for $31,500.00 USD
  • A Caterpillar 637D From Boyd CAT for $31,500.00 USD
  • A 1977 Caterpillar 637D From Ritchie Bros. Auctioneers for Auction Pricing



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