637 Wheel Tractor-Scraper

Overview

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.

Key Features

More Comfort. More Performance. More Versatility.

Increased Comfort

Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

Improved Productivity

Improvements in fuel efficiency and the new APECS transmission controls deliver more productivity in most applications

Additional Safety

New safety features help operators be more productive and work more efficiently all day long

Media Gallery

Specifications

Emissions	Cat® C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Engine Model - Tractor	Cat® C18
Rated Engine RPM - Tractor	1900 r/min
Flywheel Power - Tractor	570 hp
Engine Model - Scraper	Cat® C9.3
Rated Engine RPM - Scraper	2150 r/min
Flywheel Power - Scraper	290 hp

Fuel Tank Refill Capacity - Scraper	370 gal (US)
Overall Width	12.93 ft
Overall Shipping Height	13.7 ft
Scraper Capacity - Struck	24 yd³
Scraper Capacity - Heaped	34 yd³
Rated Load	37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Width - Cut	11.5 ft
Maximum Depth of Cut	17.7 in
Maximum Depth of Spread	21.1 in
Top Speed - Loaded	34.7 mile/h
180° Curb-to-Curb Turning Width	40.12 ft
Tires - Tractor	37.25R35**E3
Tires - Scraper	37.25R35**E3

Flywheel Power - Tractor/Scraper	570 hp

Scraper Capacity - Heaped	34 yd³

Top Speed - Loaded	34.7 mile/h

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

Real Wheels (Each)	2.37 gal (US)
Crankcase - Tractor	13.7 gal (US)
Transmission System - Tractor	29 gal (US)
Cooling System - Tractor	18.75 gal (US)
Cooling System - Scraper	10.8 gal (US)
Fuel Tank	370 gal (US)
Hydraulic System	37.5 gal (US)
Crankcase - Scraper	6.5 gal (US)
Diesel Exhaust Fluid (DEF)*	8 gal (US)
Diesel Exhaust Fluid - Scraper	5.8 gal (US)
Transmission System - Scraper	12.9 gal (US)
Diesel Exhaust Fluid - Tractor	8 gal (US)

Width - Overall Machine	155 in
Width - Overall Machine - Ladder Down	152.7 in
Width - Tractor	137.8 in
Width - Rear Tire Centers	96.9 in
Width - Inside of Bowl	134 in
Width - Outside Bowl - Shipping Width	143.1 in
Height - Top of Cab	149.8 in
Front of Tractor to Front Axle	142.2 in
Ground Clearance - Tractor	26.1 in
Axle to Vertical Hitch Pin	20 in
Height - Scraper Blade Maximum	20 in
Wheel Base	346.8 in
Length - Overall Machine - Standard	597 in
Length - Maximum (Push-Pull)	655.1 in
Rear Axle - Rear of Machine	90.2 in
Width - Outside Rear Tires	143.2 in
Extended Push Block (Push-Pull)	108 in
Height - Overall Shipping	163.2 in

Overall Length	49.34 ft
Operating Weight - Empty	114950 lb

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

Exterior Sound Level	The exterior sound power level for the standard machine (ISO 6393) is 119 dB(A).
ROPS/FOPS	ROPS/FOPS meet “ISO Standards.”

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