Get a Quote

Cat’s 637 Wheel Tractor-Scraper is engineered to conquer challenges operators face worldwide. With its strength and durability, it works in some of the most difficult conditions and materials one can find.

Cat Specs
Photos
Downloads

Tractor Engine

Flywheel Power - Tractor/Scraper
570

Scraper Bowl

Scraper Capacity - Heaped
34 yd³

Transmission

Top Speed - Loaded
34.7 mile/h

Engine

Emissions
Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Flywheel Power - Tractor
570 HP
Rated Engine RPM - Tractor
1900 r/min
Engine Model - Tractor
Cat C18

Dimensions

Width - Overall Machine
155 in
Width - Tractor
137.8 in
Width - Inside of Bowl
134 in
Width - Outside Rear Tires
143.2 in
Height - Overall Shipping
163.2 in
Height - Top of Cab
147 in
Ground Clearance - Tractor
26.1 in
Front of Tractor to Front Axle
142.2 in
Axle to Vertical Hitch Pin
20 in
Height - Scraper Blade Maximum
20 in
Wheel Base
346.8 in
Rear Axle - Rear of Machine
90.2 in
Width - Rear Tire Centers
96.9 in
Length - Maximum (Push-Pull)
655.1 in
Length - Overall Machine - Standard
597 in

Cab

Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
ROPS/FOPS
ROPS/FOPS meet “ISO Standards.”

Travel Speeds - Runout

Transmission Gear - Reverse
6.2 mile/h
Transmission Gear - Eighth
34.7 mile/h
Transmission Gear - Seventh
25.7 mile/h
Transmission Gear - Third
7.7 mile/h
Transmission Gear - Second
6.2 mile/h
Transmission Gear - Sixth
19 mile/h
Transmission Gear - Fifth
14.1 mile/h
Transmission Gear - First
3.4 mile/h
Transmission Gear - Fourth
10.5 mile/h

Implement Cycle Times

Ejector Extend
8.5 s
Apron Raise
4 s
Ejector Retract
8.5 s
Bail Lower
2.1 s
Bowl Lower
3.5 s
Bail Raise
1.5 s
Apron Lower
3.8 s
Bowl Raise
3.5 s

General

Width - Cut
11.5 ft
Tires - Tractor
37.25R35**E3
Scraper Capacity - Heaped
34 yd³
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Overall Shipping Height
13.62 ft
180° Curb-to-Curb Turning Width
40.12 ft
Maximum Depth of Spread
21.1 in
Overall Width
12.93 ft
Scraper Capacity - Struck
24 yd³
Maximum Depth of Cut
17.7 in
Fuel Tank Refill Capacity - Scraper
370 gal (US)
Tires - Scraper
37.25R35**E3
Top Speed - Loaded
34.7 mile/h

Service Refill Capacities

Fuel Tank
370 gal (US)
Hydraulic System
37.5 gal (US)
Cooling System - Tractor
19.8 gal (US)
Diesel Exhaust Fluid - Scraper
5.8 gal (US)
Cooling System - Scraper
16.1 gal (US)
Crankcase - Tractor
13.7 gal (US)
Transmission System - Tractor
29 gal (US)
Transmission System - Scraper
12.9 gal (US)
Crankcase - Scraper
6.5 gal (US)
Diesel Exhaust Fluid - Tractor
8 gal (US)

Safety Criteria Compliance Standards

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

Push-Pull

Overall Length - With Bail Down
54.59 ft
Operating Weight - Empty
119060 lb

Non Push-Pull

Operating Weight - Empty
114950 lb
Overall Length
49.34 ft