Exterior View
Interior View

637 Wheel Tractor-Scraper

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.

Flywheel Power – Tractor/Scraper
570hp
Scraper Capacity – Heaped
34yd³
Top Speed – Loaded
34.7mile/h
Front of Tractor to Front Axle
142.2in
Axle to Vertical Hitch Pin
20in
Wheel Base
346.8in
Rear Axle – Rear of Machine
90.2in
Width – Outside Rear Tires
143.2in
Width – Inside of Bowl
134in
Height – Scraper Blade Maximum
20in
Ground Clearance – Tractor
26.1in
Width – Tractor
137.8in
Length – Overall Machine – Standard
597in
Height – Overall Shipping
163.2in
Height – Top of Cab
147in
Length – Maximum (Push-Pull)
655.1in
Width – Overall Machine
155in
Width – Rear Tire Centers
96.9in
Extended Push Block (Push-Pull)
108in
Operating Weight – Empty
114950lb
Overall Length
49.34ft
Overall Length – With Bail Down
54.59ft
Operating Weight – Empty
119060lb
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.”
Reverse Alarm
ISO 9533:2010
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)
Seat Belt
SAE J386:FEB2006
Steering System
ISO 5010:2007
Transmission Gear – Reverse
6.2mile/h
Transmission Gear – Second
6.2mile/h
Transmission Gear – First
3.4mile/h
Transmission Gear – Seventh
25.7mile/h
Transmission Gear – Sixth
19mile/h
Transmission Gear – Fourth
10.5mile/h
Transmission Gear – Third
7.7mile/h
Transmission Gear – Fifth
14.1mile/h
Transmission Gear – Eighth
34.7mile/h
Bail Lower
2.1s
Apron Lower
3.8s
Apron Raise
4s
Bowl Lower
3.5s
Bowl Raise
3.5s
Ejector Retract
8.5s
Bail Raise
1.5s
Ejector Extend
8.5s
Scraper Capacity – Struck
24yd³
Width – Cut
11.5ft
180° Curb-to-Curb Turning Width
40.12ft
Fuel Tank Refill Capacity – Scraper
370gal (US)
Scraper Capacity – Heaped
34yd³
Overall Width
12.93ft
Top Speed – Loaded
34.7mile/h
Overall Shipping Height
13.62ft
Maximum Depth of Cut
17.7in
Tires – Tractor
37.25R35**E3
Maximum Depth of Spread
21.1in
Tires – Scraper
37.25R35**E3
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Rated Engine RPM – Tractor
1900r/min
Engine Model – Scraper
Cat C9.3
Engine Model – Tractor
Cat C18
Flywheel Power – Scraper
290hp
Rated Engine RPM – Scraper
2150r/min
Flywheel Power – Tractor
570hp
Emissions
Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Hydraulic System
37.5gal (US)
Crankcase – Tractor
13.7gal (US)
Diesel Exhaust Fluid – Tractor
8gal (US)
Diesel Exhaust Fluid – Scraper
5.8gal (US)
Transmission System – Scraper
12.9gal (US)
Fuel Tank
370gal (US)
Cooling System – Scraper
16.1gal (US)
Crankcase – Scraper
6.5gal (US)
Cooling System – Tractor
19.8gal (US)
Transmission System – Tractor
29gal (US)
  • 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 CCA, 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
      • Diesel Particulate Filter (DPF) temperature
      • Fuel level
      • Park brake
      • Implement lockout
      • Brake system
      • Regeneration required
      • 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
      • DEF fill levels
  • 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
    • Bowl:
      • 18.3 m3 (24 yd3), struck
      • 26 m3 (34 yd3), heaped
    • Vandalism locks
    • Scraper fenders
    • Overflow guard
    • Fast oil change
    • Rims (2)
    • Hydraulic position sensing cylinders (bowl lift and apron)
  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Steering Arrangements
    • Secondary Steering Arrangement
  • Integrated Technologies
    • Sequence Assist Arrangement with Payload Estimator
    • Load Assist
    • Cat Grade Control with Load Assist
    • Advanced Tire Spin Reduction
  • Other Attachments
    • Camera arrangement – Work Area Vision System (WAVS)
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Wiring group
    • Push Pull
  • Service Instructions
    • Film arrangement – U.S. (ANSI)
    • Film arrangement – International (ISO)

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We serve to build and power our community for a better future.

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* Offer valid from October 1, 2024 through December 31, 2024 on new 313 through 317 Cat® excavators sold by participating Cat dealers to customers in the USA or Canada. Purchase must occur during offer period. Offer subject to machine availability and credit approval by Cat Financial. Not all customers will qualify. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

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*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on select new Cat® machines listed in our Heavy Equipment Promotion page. Purchase must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The offered Cat Customer Value Agreement (CVA) includes 6 maintenance parts kits; S∙O∙SSM; and 36 month VisionLink® ConnectPro. The maintenance parts cover the first 3,000 hours^ (estimated 3 years) of machine utilization. Each kit contains one set of parts for regular planned maintenance under normal operating conditions. In some severe applications where maintenance parts need to be replaced more frequently, additional parts will be at customer’s expense. Offer excludes additional maintenance parts, dealer labor, wear parts, and fluids. Offer also includes a 36 month/5000 hour (whichever occurs first) Powertrain, Hydraulics and Technology Equipment Protection Plan (EPP). In some areas, EPP might be sold separately from the CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply. Contact your Cat dealer for details.

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