1300 881 064 
FIND A BRANCH
DIGITAL TOOLS
Photos
637
637 Open Bowl Scraper
Videos
637
360º View
637
637
Open Bowl Scrapers
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.
Emissions
Cat® C9.3 and C18 engines meet U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat® C18
Rated Engine RPM - Tractor
1900 r/min/1900 r/min
Flywheel Power - Tractor
570 hp/425 kW
Key Features
Be More Productive
Work in Comfort
Designed for Safety
Easy to Operate
Integrated Cat Technologies
Execute Efficiency
Specifications
Metric
|
Imperial
Engine 
Emissions
Cat® C9.3 and C18 engines meet U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat® C18
Rated Engine RPM - Tractor
1900 r/min
1900 r/min
Flywheel Power - Tractor
570 hp
425 kW
Engine Model - Scraper
Cat® C9.3 ACERT
Rated Engine RPM - Scraper
2150 r/min
2150 r/min
Flywheel Power - Scraper
289 hp
215 kW
General
Fuel Tank Refill Capacity - Scraper
370 gal (US)
1400 l
Overall Width
12.93 ft
3.94 m
Overall Shipping Height
13.62 ft
4.15 m
Scraper Capacity - Struck
24 yd³
18.3 m³
Scraper Capacity - Heaped
34 yd³
26 m³
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Width - Cut
11.50 ft
3.51 m
Maximum Depth of Cut
17.7 in
450 mm
Top Speed - Loaded
34.7 mile/h
55.8 km/h
Maximum Depth of Spread
21.1 in
535 mm
180° Curb-to-Curb Turning Width
40.12 ft
12.23 m
Tires - Tractor
37.25R35**E3
Tires - Scraper
37.25R35**E3
Tractor Engine
Flywheel Power - Tractor/Scraper
570 hp
425 kW
Scraper Bowl
Scraper Capacity - Heaped
34 yd³
26 m³
Transmission
Top Speed - Loaded
34.7 mile/h
55.8 km/h
Travel Speeds - Runout
Transmission Gear - First
3.4 mile/h
5.5 km/h
Transmission Gear - Second
6.2 mile/h
10.0 km/h
Transmission Gear - Third
7.7 mile/h
12.4 km/h
Transmission Gear - Fourth
10.5 mile/h
16.9 km/h
Transmission Gear - Fifth
14.1 mile/h
22.7 km/h
Transmission Gear - Sixth
19.0 mile/h
30.6 km/h
Transmission Gear - Seventh
25.7 mile/h
41.95 km/h
Transmission Gear - Eighth
34.7 mile/h
55.8 km/h
Transmission Gear - Reverse
6.2 mile/h
9.9 km/h
Service Refill Capacities
Real Wheels (Each)
2.37 gal (US)
9.0 l
Crankcase - Tractor
13.7 gal (US)
52 l
Transmission System - Tractor
29 gal (US)
110 l
Cooling System - Tractor
18,75 gal (US)
71 l
Cooling System - Scraper
10.8 gal (US)
41 l
Hydraulic System
37.5 gal (US)
142 l
Crankcase - Scraper
6.5 gal (US)
24.5 l
Diesel Exhaust Fluid (DEF)*
8.0 gal (US)
30.5 l
Diesel Exhaust Fluid (DEF)
5.8 gal (US)
22 l
Transmission System - Scraper
12.9 gal (US)
49 l
Fuel Tank
370 gal (US)
1400 l
Dimensions
Width - Overall Machine
155 in
3937 mm
Width - Overall Machine - Ladder Down
152.7 in
3878 mm
Width - Tractor
137.8 in
3499 mm
Width - Rear Tire Centers
96.9 in
2462 mm
Width - Inside of Bowl
134 in
3404 mm
Width - Outside Bowl - Shipping Width
143.1 in
3635 mm
Height - Overall Shipping
163.2 in
4145 mm
Height - Top of Cab
9.8 in
3805 mm
Front of Tractor to Front Axle
142.2 in
3612 mm
Ground Clearance - Tractor
26.1 in
664 mm
Axle to Vertical Hitch Pin
20 in
509 mm
Height - Scraper Blade Maximum
20 in
510 mm
Wheel Base
346.8 in
8808 mm
Length - Overall Machine - Standard
597 in
15164 mm
Length - Maximum (Push-Pull)
655.1 in
16640 mm
Rear Axle - Rear of Machine
90.2 in
2292 mm
Extended Push Block (Push-Pull)
108 in
2744 mm
Width - Outside Rear Tires
143.2 in
3636 mm
Non Push-Pull
Overall Length
49.34 ft
15.04 m
Operating Weight - Empty
114950 lb
52140 kg
Push-Pull
Operating Weight - Empty
114950 lb
52140 kg
Overall Length - With Bail Down
54.59 ft
16.64 m
Cab
ROPS/FOPS
ROPS/FOPS meet “ISO Standards.”
Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393) is 119 dB(A).
Safety Criteria Compliance Standards
Seat Belt
SAE J386:FEB2006
Brakes
ISO 3450:2011
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Steering System
ISO 5010:2007
Reverse Alarm
ISO 9533:2010
Implement Cycle Times
Bowl Raise
3.5 s
3.5 s
Bowl Lower
3.5 s
3.5 s
Apron Raise
4.0 s
4.0 s
Apron Lower
3.8 s
3.8 s
Ejector Extend
8.5 s
8.5 s
Ejector Retract
8.5 s
8.5 s
Bail Raise
1.5 s
1.5 s
Bail Lower
2.1 s
2.1 s
Service Refill Capacities - Tractor
Fuel Tank
370 gal (US)
1400 l
Equipment
Standard Equipment
Optional Equipment
Emissions
Cat® C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat® C18