637 Coal Bowl

Coal Bowl Scrapers 637 Coal Bowl

Key Specs

Flywheel Power - Tractor/Scraper
425 kW (570 hp)/216 kW (290 hp)
425 kW (570 hp)/216 kW (290 hp)
Emissions
Cat® C9.3 and Cat® C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
Cat® C9.3 and Cat® C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
Transmission Gear - First
3.4 mile/h
5.5 km/h

Overview

Haul More Coal

637 coal bowls are longer and higher than standard wheel tractor scraper bowls, allowing them to haul 38 m (50 yd) of low density loose coal. The bowls are designed and built to specifically deliver in coming loose coal to the stock pile and reserve stock piled coal to the feeder system.

Benefits

Increased Comfort

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

More 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

Features At A Glance

Specifications Standard Equipment Optional Equipment

Product Specifications for 637 Coal Bowl

Download Print
Flywheel Power - Tractor/Scraper 425 kW (570 hp)/216 kW (290 hp) 425 kW (570 hp)/216 kW (290 hp)
Emissions Cat® C9.3 and Cat® C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards. Cat® C9.3 and Cat® C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
Engine Model - Tractor Cat® C18 Cat® C18
Engine Model - Scraper Cat® C9.3 Cat® C9.3
Rated Engine RPM - Tractor 1900 r/min 1900 r/min
Overall Width 12.93 ft 3.94 m
Rated Engine RPM - Scraper 2150 r/min 2150 r/min
Flywheel Power - Tractor 570 hp 425 kW
Overall Shipping Height 13.62 ft 4.15 m
Flywheel Power - Scraper 290 hp 215 kW
Scraper Capacity - Struck 41 yd³ 31.3 m³
Scraper Capacity - Heaped 50 yd³ 38 m³
Rated Load 34 472 kg (76,000 lb)/34.20 tonnes (38 tons) 34 472 kg (76,000 lb)/34.20 tonnes (38 tons)
Width - Cut 11.5 ft 3.51 m
Maximum Depth of Cut 17.7 in 450 mm
Maximum Depth of Spread 21.1 in 535 mm
Top Speed - Loaded 34.7 mile/h 55.8 km/h
180° Curb-to-Curb Turning Width 42.59 ft 12.98 m
Tires - Tractor 37.25R35**E3 37.25R35**E3
Tires - Scraper 37.25R35**E3 37.25R35**E3
Overall Length 609.5 in 15480 mm
Operating Weight - Empty 117782 lb 52425 kg
Fuel Tank Refill Capacity - Scraper 370 gal (US) 1400 l
Transmission Gear - First 3.4 mile/h 5.5 km/h
Transmission Gear - Second 6.2 mile/h 10 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 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
Steering System ISO 5010:2007 ISO 5010:2007
Seat Belt SAE J386:FEB2006 SAE J386:FEB2006
Reverse Alarm ISO 9533:2010 ISO 9533:2010
Brakes ISO 3450:2011 ISO 3450:2011
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 21 282 kg (46,919 lb) ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II ISO 3449:2005 Level II
Exterior Sound Power Level The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A). The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
ROPS/FOPS Meet ISO standards Meet ISO standards
Real Wheels (Each) 2.37 gal (US) 9 l
Crankcase - Scraper 6.5 gal (US) 24.5 l
Crankcase - Tractor 13.7 gal (US) 52 l
Transmission System - Tractor 29 gal (US) 110 l
Cooling System - Tractor 19.8 gal (US) 75 l
Cooling System - Scraper 16.1 gal (US) 61 l
Transmission System - Scraper 12.9 gal (US) 49 l
Fuel Tank 370 gal (US) 1400 l
Diesel Exhaust Fluid - Tractor 8 gal (US) 30.5 l
Hydraulic System 37.5 gal (US) 142 l
Diesel Exhaust Fluid - Scraper 5.8 gal (US) 22 l
Bowl Lower 3.5 s 3.5 s
Bowl Raise 3.5 s 3.5 s
Bail Lower 2.1 s 2.1 s
Bail Raise 1.5 s 1.5 s
Apron Lower 3.8 s 3.8 s
Apron Raise 4 s 4 s
Ejector Retract 8.5 s 8.5 s
Ejector Extend 8.5 s 8.5 s
Differential 40.4 gal (US) 153 l
Windshield Washer 1.3 gal (US) 5 l
Final Drive - Each 8.71 gal (US) 33 l
Differential 6.1 gal (US) 23 l
Final Drive - Each 4.8 gal (US) 18 l
Width - Overall Machine 155 in 3937 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 in 4140 mm
Height - Top of Cab 147 in 3733 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 21.2 in 538 mm
Wheel Base 376.8 in 9570 mm
Length - Overall Machine - Standard 609.5 in 15480 mm
Rear Axle - Rear of Machine 95.4 in 2424 mm
Width - Outside Rear Tires 143.2 in 3636 mm
Top Speed - Loaded 34.7 mile/h 55.8 km/h
Scraper Capacity - Heaped 50 yd³ 38 m³

637 Coal Bowl Standard Equipment

Print

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

POWER TRAIN – TRACTOR

  • Cat C18 engine with MEUI™
  • Compression engine brake
  • Electric start, 24V
  • Air cleaner, dry type with precleaner
  • Fan, hydraulic
  • Ground level engine shutdown
  • Radiator, aluminum unit core, 9 fins per inch
  • Guard, crankcase
  • Starting aid, ether
  • Braking system:
    • Primary and secondary, wet disc, hydraulic actuated
    • Parking, hydraulic-released, spring-applied
  • Throttle lock
  • Transmission:
    • 8-speed planetary power shift
    • ECPC control
    • APECS software
    • Programmable top gear selection
    • Transmission hold
    • Differential lock
    • Guard, power train
    • Standard tire spin reduction
    • Ground speed control
    • Machine speed limit
    • Differential lock protection

POWER TRAIN – SCRAPER

  • Cat C9.3 engine
    • High pressure common rail fuel
    • Constant lift engine brake
  • Electric start, 24V
  • Air cleaner, dry type with precleaner
  • Fan, mechanical driven
  • Ground level engine shutdown
  • Radiator, aluminum unit core, 9 fins per inch
  • Starting aid, either
  • Braking system:
    • Primary and secondary, dry caliper, hydraulic actuated
  • Transmission:
    • 4-speed (torque converter drive)
    • Planetary power shift

ELECTRICAL – TRACTOR

  • Alternator, 150 Amp
  • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
  • Electrical system, 24V
  • Lighting system:
    • Headlights, LED
    • Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)
  • Starting/charging receptacle

ELECTRICAL – SCRAPER

  • Alarm, backup
  • Batteries (4) 12V, 1,000 CAA, maintenance free, high output
  • Alternator, 65 Amp
  • Electrical system, 24V
  • Lighting system:
    • Brake lights, LED
    • Turn signals with hazard function, LED

OPERATOR ENVIRONMENT – TRACTOR

  • HVAC system, heat, AC, defrost
  • Thermostat control of HVAC system
  • Coat hook
  • Lunchbox platform with holding strap
  • Diagnostic connection (2)
  • 12V power ports (2)
  • Differential lock (1)
  • Dome courtesy light
  • Horn, electric
  • T-handle implement control
  • Mirror, rearview
  • Radio ready
  • ROPS/FOPS cab, pressurized
  • Keypad switches:
    • Throttle lock
    • Wipers/washers
    • Hazard lights
    • Retarding level select
    • Work lights on, off
    • Information mode on Messenger Display
  • Safety tab rocker switches
  • Seat belt, static two-piece
  • Seat, Cat Advanced Ride Management (ARM), Cat Comfort Series 3, rotates 30 degrees
  • Steering wheel, tilt, telescoping, padded
  • Windows, right side emergency egress
  • Windows, sliding
  • Windows, laminated, zipped in
  • Windshield wipers, front and rear windows, includes washers
  • Door lock
  • Messenger Display
  • Gauges, warnings include:
    • Coolant temperature
    • Engine oil temperature
    • Hydraulic oil temperature
    • Fuel level
    • Park brake
    • Implement lockout
    • Brake system
    • Throttle lock
    • System voltage
    • Secondary steering
    • Bail down
    • Ejector auto
    • Differential lock
    • Apron float
    • Transmission hold
    • Cushion hitch
    • High beam lights
    • Action lamp
    • Engine speed, rpm
    • Gear selection

FLUIDS

  • Extended Life Coolant to –37° C (–34° F)

OTHER STANDARD EQUIPMENT – TRACTOR

  • Advanced cushion hitch
  • Accumulators (cushion hitch) with Canadian Registration Number (CRN)
  • Fast oil change
  • Fenders, non-metallic
  • Heater, engine coolant 120V
  • Rims (2)
  • Tow hooks, front
  • Vandalism locks
  • Heater, engine coolant 120V
  • Steering locks

OTHER STANDARD EQUIPMENT – SCRAPER

  • Coal Bowl
    • 31 m3 (41 yd3), struck
    • 38 m3 (50 yd3), heaped
  • Vandalism locks
  • Scraper fenders
  • Fast oil change
  • Rims (2)
  • Hydraulic position sensing cylinders (bowl lift and apron)

637 Coal Bowl Optional Equipment

Print

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

STEERING ARRANGEMENTS

  • Secondary Steering Arrangement

INTEGRATED TECHNOLOGIES

  • Sequence Assist Arrangement
  • Advanced Tire Spin Reduction

OTHER ATTACHMENTS

  • Camera arrangement – WAVS
  • Cab beacon
  • Air horn
  • Air horn and beacon
  • Wiring group

SERVICE INSTRUCTIONS

  • Film arrangement – U.S. (ANSI)
  • Film arrangement – International (ISO)

See how 637 Coal Bowl compares against frequently compared products.

Wheel Tractor-Scrapers
Selected
637 Coal Bowl
637 Coal Bowl
Flywheel Power - Tractor/Scraper
425 kW (570 hp)/216 kW (290 hp)
425 kW (570 hp)/216 kW (290 hp)
Emissions
Cat® C9.3 and Cat® C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
Cat® C9.3 and Cat® C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
Transmission Gear - First
3.4 mile/h
5.5 km/h
Wheel Tractor-Scrapers
657 Coal Bowl
657 Coal Bowl
Tractor Engine
Cat C18
Cat C18
Flywheel Power - Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
469kW (629 hp) / 353 kW (473 hp)
Scraper Engine
Cat C15
Cat C15
View Details
Wheel Tractor-Scrapers
637 Coal Bowl
637 Coal Bowl
Flywheel Power - Tractor/Scraper
425 kW (570 hp)/216 kW (290 hp)
425 kW (570 hp)/216 kW (290 hp)
Scraper Capacity - Heaped
50 yd³
38 m³
Top Speed - Loaded
34.7 mile/h
55.8 km/h
View Details

Tools And Expert Help At Every Turn

Find Dealer
Payment Calculator
Current Offers
Rental Options
Used Options

Product Brochures and More Are Ready to Download!

Media Gallery

637 Coal Bowl Scraper

637 Coal Bowl Scraper

637 Coal Bowl Scraper

637 Coal Bowl Scraper

637 Coal Bowl Scraper

637 Coal Bowl Scraper

637 Coal Bowl Scraper
637 Coal Bowl Scraper
637 Coal Bowl Scraper

360 View
360 View

Check out current offers for the 637 Coal Bowl

View More Offers

Products

Your Business

Finance

Support

Company

News

Buying Tools

Caterpillar Brands

  • US-English
  • © 2025 Caterpillar. All Rights Reserved.