627K Wheel Tractor-Scraper

627K Wheel Tractor-Scraper

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

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Main Features and Benefits

• Tractor Serviceability Improvement - The filter bank located at the rear of the engine compartment has undergone improvements for serviceability by raising the filter bank up for easier access.

• Engine Over Speed Protection - In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.

• Fuel Economy Mode - Fuel Economy Mode is a two part feature when selected, the first part of the feature lowers the transmission shift points allowing shifting to take place at lower rpms to aid in fuel savings. The second part of the Fuel Economy Mode allows the machine when operated at engine rpms less than full throttle to automatically vary the power distribution between the tractor and the scraper, allowing the machine to utilize the more efficient tractor power train vs. the full time torque converter drive scraper power train.

• Advanced Cushion Hitch - With similar technology as the Cat® Advanced Ride Management seat suspension, this software allows the cushion hitch to prevent end stroke by having the ability to predict end stroke events and manage the rate of dampening. The desired result is improved hitch repair, reduced maintenance and improved operator ride in rough conditions.

• High Pressure Steering - The K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.

• Draft Arm Overflow Guards - The open bowls now come standard with bowl side overflow guards to help prevent material from flowing over the bowl sides and falling onto the draft arms where material becomes lodged between the bowl side and draft arm resulting in decreased work cycle times.

• Auto Stall - In cold weather conditions the machine will use the Auto Stall feature to help warm up the transmission oil faster resulting in the machine shifting out of torque converter drive (2nd gear) faster than on previous models.

• Differential Lock Engagement Protection (Standard) - This standard feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.

• Cab Improved - The interior of the K Series cabs has improved the operator comfort and visibility by redesigning the dash area and key pad placement.

• Machine Speed Limit - This feature is designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close high idle.

• Ground Speed Control - Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases will result in a lower engine load factor and lower fuel burn verses top gear selection.

Tractor Engine

Flywheel Power: Tractor/Scraper
304 kW (407 hp)/216 kW (290 hp)

Scraper Bowl

Scraper Capacity: Heaped


Top Speed (Loaded)


Width - Overall Machine
Width - Tractor
Width - Inside of Bowl
Width - Outside Rear Tires
Height - Overall Shipping
Height - Top of Cab
Ground Clearance - Tractor
Front of Tractor to Front Axle
Axle to Vertical Hitch Pin
Height - Scraper Blade Maximum
Rear Axle to Rear of Machine
Length - Maximum (Push-Pull)
Length - Overall Machine (Standard)
Width - Overall Machine - Ladder Down
Width - Rear Tire Centers


Engine Model: Scraper
Cat C9.3 ACERT
Engine Model: Tractor
Cat C13 ACERT™
Flywheel Power: Scraper
Flywheel Power: Tractor
Cat C9.3 ACERT and Cat C13 ACERT engines meet U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Rated Engine RPM: Scraper
Rated Engine RPM: Tractor

Travel Speeds (Runout)

Transmission Gear: Eighth
Transmission Gear: Fifth
Transmission Gear: First
Transmission Gear: Fourth
Transmission Gear: Reverse
Transmission Gear: Second
Transmission Gear: Seventh
Transmission Gear: Sixth
Transmission Gear: Third


Operating Weight (Empty)
Overall Length (With Bail Down)

General Data

180° Curb-to-Curb Turning Width
Fuel Tank Refill Capacity: Scraper
Maximum Depth of Cut
Maximum Depth of Spread
Overall Shipping Height
Overall Width
Rated Load
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Scraper Capacity: Heaped
Scraper Capacity: Struck
Tires: Scraper
Tires: Tractor Drive
Top Speed (Loaded)
Width of Cut


Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
Meets SAE and ISO standards

Implement Cycle Times

Apron Lower
Apron Raise
Bail Lower
Bail Raise
Bowl Lower
Bowl Raise
Ejector Extend
Ejector Retract

Service Refill Capacities

Cooling System: Scraper
Cooling System: Tractor
Crankcase: Scraper
Crankcase: Tractor
Diesel Exhaust Fluid: Scraper
Diesel Exhaust Fluid: Tractor
Fuel Tank
Hydraulic System
Transmission System: Scraper
Transmission System: Tractor

Non Push-Pull

Operating Weight (Empty)
Overall Length

Safety Criteria Compliance Standards

ISO 3450:1996
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Reverse Alarm
ISO 9533:2010
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Seat Belt
SAE J386:JUN1985
Steering System
ISO 5010:2007

Standard Equipment

  • Power Train - Tractor
    • Cat C13 ACERT engine with MEUI
    • Cat engine brake
    • Electric start, 24 Volt
    • Air cleaner, dry type with precleaner
    • Fan, hydraulic
    • Ground level engine shutdown
    • Radiator, aluminum unit core, 9 fins per inch
    • Guard, crankcase
    • Muffler (only for less or non-regulated regions engine arrangement only)
    • Starting aid, ether
    • Braking system: - Primary and secondary, wet disc, hydraulic - 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 ACERT engine with high pressure: - Common rail fuel - Cat engine brake - Electric start, 24 volt - Fan, driveline - Ground engine shutdown - Muffler (only for less or non-regulated regions engine arrangement only) - Starting aid, ether
    • Braking system: - Primary and secondary, wet disc, hydraulic - 4 speed (torque converter drive) - Transmission planetary powershift
  • Electrical - Tractor
    • Alternator, 150 Amp
    • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
    • Electrical system, 24V
    • Lighting system: - Headlights, 3×3 halogen - Turn signals with hazard function, LED floodlights, (2) 3×3 cutting edge (1) 3×3 bowl, halogen side vision (2) 3×3 halogen
    • Starting/charging receptacle
  • Electrical - Scraper
    • Alarm, backup
    • Alternator, 65 Amp
    • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
    • Lighting system: - Brake lights, LED - Turn signals with hazard function, LED
    • Starting/charging receptacle
  • 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: - Rear engine start - Throttle lock - Wipers/washers - Hazard lights - Retarding level select - Work lights on, off - Information mode on Messenger Display
    • Safety tab rocker switches: - Regeneration control (Tier 4 Final/EU Stage IV only) - Parking brake
    • 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 - DPF temperature - Fuel level - Park brake - Implement lockout - Brake system - Regeneration required - Throttle lock - System voltage - Secondary steering - Bail down - 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 pin, front
    • Vandalism locks
    • Heater, engine coolant 120V
  • Other Standard Equipment - Scraper
    • Bowl: - 18.4 m3 (24 yd3), heaped - 14.1 m3 (18.4 yd3), struck - Fast oil change - Vandalism locks - Guard, overflow - Heater, engine coolant 120V
    • Hydraulic position sensing cylinders (bowl lift and apron)
  • Special Arrangements
    • Tractor/Scraper Arrangements: - Push Pull Arrangement
    • Fueling Arrangements: - Fast Fill Group

Optional Equipment

  • Steering Arrangements
    • Secondary Steering Arrangement
  • Integrated Technologies
    • Sequence Assist Arrangement
    • Load Assist
    • Cat Grade Control with Load Assist
    • Product Link Installation
  • Other Attachments
    • Camera arrangement - WAVS
    • Steering lock - external
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Fender, scraper
    • Wiring group
  • Work Light Attachments
    • HID work lights
  • Ambient Capability Arrangements
    • Cooling, high ambient HRC
    • Cooling, low ambient HRC
    • Cooling, high ambient LRC
    • Cooling, low ambient LRC
  • Cleaner
    • Cab precleaner
  • Other Attachments
    • Year of manufacture plate
  • Service Instructions
    • Film arrangement - U.S. (ANSI)
    • Film arrangement - International (ISO)