Caterpillar 637 Scraper Specs

Category: Scrapers ➔
Manufacturer: Caterpillar ➔
Model: 637 ➔

The Caterpillar 637 is a self-loading wheel tractor-scraper used in earthmoving, road construction, and large-scale site preparation. Designed for high-volume material handling, the 637 combines a tractor unit and scraper bowl to cut, load, haul, and spread soil, gravel, and other loose materials. Caterpillar has produced multiple 637 variants over time, including articulated and open-bowl configurations, with different engine and transmission options depending on the model year. The machine is commonly used in mass excavation, embankment construction, and haul road work where efficient cycle times and large payload capacity are required.

Cab

Caterpillar 637 Scraper Cab specifications
Exterior Sound Level	The exterior sound power level for the standard machine (ISO 6393) is 119 dB(A). - Starting 2026
ROPS/FOPS	ROPS/FOPS meet “ISO Standards.” - Starting 2026

Dimensions

Caterpillar 637 Scraper Dimensions specifications
Axle to Vertical Hitch Pin	20.00 in (50.80 cm) - Starting 2026
Extended Push Block (Push-Pull)	108.00 in (274.32 cm) - Starting 2026
Front of Tractor to Front Axle	142.20 in (361.19 cm) - Starting 2026
Ground Clearance - Tractor	26.10 in (66.29 cm) - Starting 2026
Height	13.92 ft (4.24 m)
Height - Overall Shipping	163.20 in (414.53 cm) - Starting 2026
Height - Scraper Blade Maximum	20.00 in (50.80 cm) - Starting 2026
Height - Top of Cab	149.80 in (380.49 cm) - Starting 2026
Length	48.58 ft (14.81 m)
Length - Maximum (Push-Pull)	655.10 in (1,663.95 cm) - Starting 2026
Length - Overall Machine - Standard	597.00 in (1,516.38 cm) - Starting 2026
Rear Axle - Rear of Machine	90.20 in (229.11 cm) - Starting 2026
Weight	112,670.00 lbs (51,106.32 kg)
Wheel Base	346.80 in (880.87 cm) - Starting 2026
Width	13.00 ft (3.96 m)
Width - Inside of Bowl	134.00 in (340.36 cm) - Starting 2026
Width - Outside Bowl - Shipping Width	143.10 in (363.47 cm) - Starting 2026
Width - Outside Rear Tires	143.20 in (363.73 cm) - Starting 2026
Width - Overall Machine	155.00 in (393.70 cm) - Starting 2026
Width - Overall Machine - Ladder Down	152.70 in (387.86 cm) - Starting 2026
Width - Rear Tire Centers	96.90 in (246.13 cm) - Starting 2026
Width - Tractor	137.80 in (350.01 cm) - Starting 2026

Engine

Caterpillar 637 Scraper Engine specifications
Emissions	Cat® C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards. - Starting 2026
Engine Model - Scraper	Cat® C9.3 - Starting 2026
Engine Model - Tractor	Cat® C18 - Starting 2026
Flywheel Power - Scraper	290.00 hp (216.26 kw) - Starting 2026
Flywheel Power - Tractor	570.00 hp (425.06 kw) - Starting 2026
Rated Engine RPM - Scraper	2150 r/min - Starting 2026
Rated Engine RPM - Tractor	1900 r/min - Starting 2026

General

Caterpillar 637 Scraper General specifications
180° Curb-to-Curb Turning Width	40.12 ft (12.23 m) - Starting 2026
Fuel Tank Refill Capacity - Scraper	370.00 gal (1,400.45 l) - Starting 2026
Maximum Depth of Cut	17.70 in (44.96 cm) - Starting 2026
Maximum Depth of Spread	21.10 in (53.59 cm) - Starting 2026
Overall Shipping Height	13.70 ft (4.18 m) - Starting 2026
Overall Width	12.93 ft (3.94 m) - Starting 2026
Rated Load	37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons) - Starting 2026
Scraper Capacity - Heaped	34 cu yd - Starting 2026
Scraper Capacity - Struck	24 cu yd - Starting 2026
Tires - Scraper	37.25R35**E3 - Starting 2026
Tires - Tractor	37.25R35**E3 - Starting 2026
Top Speed - Loaded	34.70 mph (55.84 kph) - Starting 2026
Width - Cut	11.50 ft (3.51 m) - Starting 2026

Implement Cycle Times

Caterpillar 637 Scraper Implement Cycle Times specifications
Apron Lower	3.8 s - Starting 2026
Apron Raise	4 s - Starting 2026
Bail Lower	2.1 s - Starting 2026
Bail Raise	1.5 s - Starting 2026
Bowl Lower	3.5 s - Starting 2026
Bowl Raise	3.5 s - Starting 2026
Ejector Extend	8.5 s - Starting 2026
Ejector Retract	8.5 s - Starting 2026

Non Push-Pull

Caterpillar 637 Scraper Non Push-Pull specifications
Operating Weight - Empty	114,950.00 lbs (52,140.51 kg) - Starting 2026
Overall Length	49.34 ft (15.04 m) - Starting 2026

Push-Pull

Caterpillar 637 Scraper Push-Pull specifications
Operating Weight - Empty	119,060.00 lbs (54,004.77 kg) - Starting 2026
Overall Length - With Bail Down	54.59 ft (16.64 m) - Starting 2026

Safety Criteria Compliance Standards

Caterpillar 637 Scraper Safety Criteria Compliance Standards specifications
Brakes	ISO 3450:2011 - Starting 2026
Falling Object Protective Structure (FOPS)	ISO 3449:2005 Level II - Starting 2026
Reverse Alarm	ISO 9533:2010 - Starting 2026
Rollover Protection Structure (ROPS)	ISO 3471:2008 for up to 21 282 kg (46,919 lb) - Starting 2026
Seat Belt	SAE J386:FEB2006 - Starting 2026
Steering System	ISO 5010:2007 - Starting 2026

Scraper Bowl

Caterpillar 637 Scraper Scraper Bowl specifications
Scraper Capacity - Heaped	34 cu yd - Starting 2026

Service Refill Capacities

Caterpillar 637 Scraper Service Refill Capacities specifications
Cooling System - Scraper	10.80 gal (40.88 l) - Starting 2026
Cooling System - Tractor	18.75 gal (70.97 l) - Starting 2026
Crankcase - Scraper	6.50 gal (24.60 l) - Starting 2026
Crankcase - Tractor	13.70 gal (51.85 l) - Starting 2026
Diesel Exhaust Fluid (DEF)*	8.00 gal (30.28 l) - Starting 2026
Diesel Exhaust Fluid - Scraper	5.80 gal (21.95 l) - Starting 2026
Diesel Exhaust Fluid - Tractor	8.00 gal (30.28 l) - Starting 2026
Fuel Tank	370.00 gal (1,400.45 l) - Starting 2026
Hydraulic System	37.50 gal (141.94 l) - Starting 2026
Real Wheels (Each)	2.37 gal (8.97 l) - Starting 2026
Transmission System - Scraper	12.90 gal (48.83 l) - Starting 2026
Transmission System - Tractor	29.00 gal (109.77 l) - Starting 2026

Tractor Engine

Caterpillar 637 Scraper Tractor Engine specifications
Flywheel Power - Tractor/Scraper	570.00 hp (425.06 kw) - Starting 2026

Transmission

Caterpillar 637 Scraper Transmission specifications
Top Speed - Loaded	34.70 mph (55.84 kph) - Starting 2026

Travel Speeds - Runout

Caterpillar 637 Scraper Travel Speeds - Runout specifications
Transmission Gear - Eighth	34.70 mph (55.84 kph) - Starting 2026
Transmission Gear - Fifth	14.10 mph (22.69 kph) - Starting 2026
Transmission Gear - First	3.40 mph (5.47 kph) - Starting 2026
Transmission Gear - Fourth	10.50 mph (16.90 kph) - Starting 2026
Transmission Gear - Reverse	6.20 mph (9.98 kph) - Starting 2026
Transmission Gear - Second	6.20 mph (9.98 kph) - Starting 2026
Transmission Gear - Seventh	25.70 mph (41.36 kph) - Starting 2026
Transmission Gear - Sixth	19.00 mph (30.58 kph) - Starting 2026
Transmission Gear - Third	7.70 mph (12.39 kph) - Starting 2026