Cat Wheel Loaders:

938M Wheel Loader

Operating Weight
36216 lb
Bucket Capacities
2.5-5.0 m3 (3.3-6.5 yd3)
Engine Model
Cat® C7.1 ACERT™
Note
No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.

The Cat 938M Small Wheel Loader sets the standard for productivity, fuel efficiency and operator comfort. The improved optimized Z-bar loader linkage delivers the quick loading performance of a traditional Z-bar with the parallelism and load handling capability of a tool carrier. A high torque, low speed C7.1 ACERT engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard. Meets Tier 4 Final/Stage IV emission standards with an environmentally friendly, Clean Emission Module designed to manage itself so you can concentrate on your work. Experience the new industry benchmark.



Product Specs

  • Weights

  • Operating Weight
    36216lb
    Operating Weight
    36216lb
  • Buckets

  • Bucket Capacities
    2.5-5.0 m3 (3.3-6.5 yd3)
    Bucket Capacities – General Purpose
    2.5-3.2 m3 (3.2-4.2 yd3)
    Bucket Capacities – Light Material
    3.1-5.0 m3 (4.0-6.5 yd3)
    Bucket Capacities
    2.5-5.0 m3 (3.3-6.5 yd3)
  • Engine

  • Engine Model
    Cat® C7.1 ACERT™
    Note
    No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
    Note
    Spark arrestor performance as standard – Meets performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).
    Rated Net Power
    182HP
    Maximum Rated Gross Power - ISO 14396
    188HP
    Maximum Rated Gross Power - ISO 14396 (DIN)
    190HP
    Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)
    1800r/min
    Maximum Rated Gross Power - ISO 14396 (Performance Power Mode: Range 1-4)
    188HP
    Maximum Rated Gross Power - ISO 14396 (DIN) (Performance Power Mode: Range 1-4)
    190HP
    Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
    182HP
    Stroke
    5in
    Rated Net Power - 1,800 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
    184HP
    Note
    * Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
    Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4)
    186HP
    Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)
    648lb/ft
    Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)
    621lb/ft
    Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4)
    628lb/ft
    Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)
    1600r/min
    Maximum Rated Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*)
    173HP
    Maximum Rated Gross Power - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*)
    175HP
    Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
    168HP
    Rated Net Power - 1,600 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
    169HP
    Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
    171HP
    Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)
    648lb/ft
    Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*)
    621lb/ft
    Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*)
    628lb/ft
    Displacement
    427in3
    Bore
    4in
    Emissions
    Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
    Engine Model
    Cat® C7.1 ACERT™
    Maximum Gross Power
    188HP
    Bore
    4in
    Stroke
    5in
    Displacement
    427in³
    Emissions
    Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
    Note (1)
    * Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
    Note (2)
    Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed.
    Note (3)
    No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
    Note (4)
    Spark arrestor performance as standard – Meets performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).
    Maximum Gross Power
    188hp
    Note
    Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed.
  • Cab

  • Note
    Declared sound levels per ISO 6396:2008* while in Performance Power Mode: – Standard cab: 68 ±3 dB(A) and Deluxe cab
    Note
    * Measurements were conducted with cab doors and windows closed and at 70% of maximum engine cooling fan speed. Sound level may vary at different engine cooling fan speeds.
    ROPS
    ISO 3471: 2008
    FOPS
    ISO 3449: 2005 LEVEL II
    ROPS
    ISO 3471: 2008
    FOPS
    ISO 3449: 2005 LEVEL II
    Note (1)
    Declared sound levels per ISO 6396:2008* while in Performance Power Mode: – Standard cab: 68 ±3 dB(A) and Deluxe cab
    Note (2)
    * Measurements were conducted with cab doors and windows closed and at 70% of maximum engine cooling fan speed. Sound level may vary at different engine cooling fan speeds.
  • Loader Hydraulic System

  • Note (2)
    Implement system uses a dedicated load sensing variable displacement pump with dual double acting lift cylinders and a single double acting tilt cylinder.
    Note (3)
    Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
    Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Float Down (Maximum Lift to Ground Level)
    2.7/2.7 seconds
    Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Total Cycle Time
    9.7/10.6 seconds
    Note (1)
    * 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
    Maximum Flow – Implement Pump
    50gal/min
    Maximum Flow - Implement Pump - 3rd Function*
    50gal/min
    Maximum Flow - Implement Pump - 4th Function Maximum Flow*
    42gal/min
    Maximum Working Pressure – Implement Pump
    4061psi
    Relief Pressure – Tilt Cylinder
    4351psi
    Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure
    4061psi
    Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure
    4351psi
    Lift Cylinder: Double Acting – Bore Diameter
    4.7in
    Lift Cylinder: Double Acting – Rod Diameter
    2.6in
    Lift Cylinder: Double Acting – Stroke
    31.1in
    Tilt Cylinder: Double Acting – Bore Diameter
    5.9in
    Tilt Cylinder: Double Acting – Rod Diameter
    3.5in
    Tilt Cylinder: Double Acting – Stroke
    21.9in
    Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Raise (Ground Level to Maximum Lift)
    5.5/6.2 seconds
    Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Dump (at Maximum Lift Height)
    1.5/1.7 seconds
    Lift Cylinder, Double Acting - Bore Diameter
    4.7in
    Lift Cylinder, Double Acting - Rod Diameter
    2.6in
    Lift Cylinder, Double Acting - Stroke
    31.1in
    Maximum Flow - Implement Pump
    50gal/min
    Maximum Working Pressure - Implement Pump
    4061psi
    Relief Pressure - Tilt Cylinder
    4351psi
    Tilt Cylinder, Double Acting - Bore Diameter
    5.9in
    Tilt Cylinder, Double Acting - Rod Diameter
    3.5in
    Tilt Cylinder, Double Acting - Stroke
    21.9in
  • Steering

  • Note (1)
    Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
    Note (2)
    Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
    Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited
    3.1s
    Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed
    2.3s
    Steering Cylinder: Double Acting – Bore Diameter
    3.1in
    Steering Cylinder: Double Acting – Rod Diameter
    2in
    Steering Cylinder: Double Acting – Stroke
    15.7in
    Maximum Flow – Steering Pump
    34gal/min
    Maximum Working Pressure – Steering Pump
    3500psi
    Maximum Steering Torque – 0° (Straight Machine)
    42506lbf-ft
    Maximum Steering Torque - 40° (Full Turn)
    31398lb/ft
    Maximum Flow - Steering Pump
    34gal/min
    Maximum Steering Torque - 0° (Straight Machine)
    42506lb/ft
    Maximum Working Pressure - Steering Pump
    3500psi
    Steering Cylinder, Double Acting - Bore Diameter
    3.1in
    Steering Cylinder, Double Acting - Rod Diameter
    2in
    Steering Cylinder, Double Acting - Stroke
    15.7in
  • Power Train

  • Note (1)
    Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
    Note (2)
    Differential front locking axle can be engaged on the go at full torque up to 20 km/h (12.4 mph) on the 938M.
    Note (3)
    Offset rims available to meet European roading requirements.
    Front Axle
    Fixed
    Front Axle - Traction Aid - Standard
    Locking differential
    Rear Axle
    Oscillating
    Rear Axle - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65
    ± 10.5 degrees
    Rear Axle - Oscillation Angle by Tire Size - 23.5 R25
    ± 7 degrees
    Rear Axle - Oscillation Angle by Tire Size - Solid Tires, 750/65, 620/65, Skidder
    ± 7 degrees
    Rear Axle - Traction Aid - Optional
    Limited slip differential
    Brakes: Service
    Outboard wet disc
    Brakes: Park
    Spring applied hydraulically released
    Brakes - Parking
    Spring applied hydraulically released
    Brakes - Service
    Outboard wet disc
    Front Axle
    Fixed
    Rear Axle
    Oscillating
  • Transmission

  • Note
    * Creeper control allows maximum speed range adjustability from 1 km/h (0.6 mph) to 13 km/h (8 mph) in Range 1 through the secondary display when equipped. Factory default is 7 km/h (4.4 mph).
    Note (cont'd)
    Factory default is 7 km/h (4.4 mph).
    Forward and Reverse - Range 1*
    1-13 km/h (0.6-8 mph)
    Forward and Reverse - Range 2
    8mile/h
    Forward and Reverse - Range 3
    17mile/h
    Forward and Reverse - Range 4
    25mile/h
    Note
    * Creeper control allows maximum speed range adjustability from 1 km/h (0.6 mph) to 13 km/h (8 mph) in Range 1 through the secondary display when equipped. Factory default is 7 km/h (4.4 mph).
  • Service Refill Capacities

  • Fuel Tank
    51.5gal
    Cooling System
    8.5gal
    Engine Crankcase
    5.3gal
    Transmission (Gear Box)
    2.9gal
    Front Axles
    9.2gal (US)
    Rear Axles
    9.2gal (US)
    Hydraulic System (Including Tank)
    44.9gal
    Hydraulic Tank
    23.8gal
    Diesel Exhaust Fluid (DEF) Tank
    5.0gal
    Cooling System
    8.5gal (US)
    Diesel Exhaust Fluid (DEF) Tank
    5gal (US)
    Engine Crankcase
    5.3gal (US)
    Fuel Tank
    51.5gal (US)
    Hydraulic System - Including Tank
    44.9gal (US)
    Hydraulic Tank
    23.8gal (US)
    Transmission - Gear Box
    2.9gal (US)
  • Operating Specifications

  • Full Turn Tip Load
    22107lb
    Full Turn Tip Load
    22107lb
  • Tires

  • Standard Size
    20.5 R25, radial (L-3)
    Other Choices Include:
    20.5 R25, radial (L-2); 20.5 R25, radial (L-5); 20.5-25 12PR (L-2); 20.5-25 12PR (L-3); 20.5-25 16PR (L-5)
    Other Choices Also Include:
    23.5 R25, radial (L-3); 650/65 R25 radial (L-3); Skidder/Agriculture; Flexports Gen II
  • Axles

  • Front
    Fixed; Locking differential (standard)
    Rear
    Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional)
  • Air Conditioning System

  • Air Conditioning
    The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential – 1430). The system contains 1.9 kg of refrigerant which has a CO2 equivalent of 2.717 metric tonnes.

Equipment

  • Power Train
    • Axle seal guards
    • Auto idle shut down feature
    • Cat C7.1 ACERT engine
      – Power Modes (Standard and Performance)
      – Power by Range (High Power in Range 4)
      – Turbocharged and aftercooled
      – Diesel particulate filter (Fit for Life)
    • Coolant protection to –34° C (–29° F)
    • Differential lock in front axle
    • Dry type air cleaner
    • Enclosed wet disc full hydraulic brakes
    • Fuel priming pump, automatic
    • Fuel water separator
    • Hydraulically driven demand cooling fan
    • Intelligent hydrostatic transmission
      – Power train modes
      – Directional shift aggressiveness
      – Rimpull control, adjust wheel torque
      – Creeper control, adjust ground speed
    • Lubed for life driveshafts
    • Parking brake, electric
    • Wide spaced 6 fins per inch cooling package
    • S·O·SSM sampling ports
    • Throttle lock and maximum speed limiter
  • Hydraulics
    • Automatic lift, lower and tilt kickouts
    • Bucket and Fork Modes, adjustable in-cab
    • Cylinder damping at kickout and end stops
    • Fine Mode control in Fork Mode
    • Hydraulic Response setting
    • Load sensing hydraulics and steering
    • Seat-mounted hydraulic joystick controls
  • Electrical
    • Alternator, 115-amp, heavy duty
    • 12V power supply in cab (2)
    • Batteries, 1,000 CCA (2) 24 volt system
    • Back-up alarm
    • Emergency shutdown switch
    • Heavy duty gear reduction starter
    • Product Link PRO with subscription
    • Remote jump start post
    • Resettable critical function breakers
  • Operator Environment
    • 75 mm (3 in) retractable seat belt, with audible alarm and indicator
    • Automatic temperature control
    • Cab, enclosed and pressurized
    • Cup holders
    • External heated mirrors with lower parabolic
    • Ground level cab door release
    • Gauges
      – Digital hour, odometer, tachometer, ground speed and direction indicator
      – Engine coolant temperature gauge
      – Fuel and Diesel Exhaust Fluid level
      – Hydraulic oil temperature gauge
    • Hydraulic control lockout
    • Interior cab lighting, door and dome
    • Interior rearview mirrors (2)
    • Lunch box storage
    • Operator warning system indicators
    • Radio ready speakers
    • Rear window defrost, electric
    • Seat-mounted controls, adjustable
    • Sliding glass on the side windows
    • Column mounted multi function control – lights, wipers, turn signal
    • Suspension seat, fabric
    • Tilt and telescopic steering wheel
    • Wet arm wiper/washer, front and rear
  • Other Standard Equipment
    • Large-access enclosure doors
    • Parallel lift loader linkage
    • Recovery hitch with pin
    • Remote mounted lubrication points
    • Lockable compartments and enclosures
  • Optional Equipment
    • Antifreeze/coolant, extended-life
    • Auto lube, integrated in secondary display
    • Auxiliary flow, third and fourth function
    • Axles, differential, limited slip, rear
    • Beacon light, strobe
    • Cab, deluxe (standard in Europe):
      – Automatic blower control
      – Electrically adjustable heated mirrors (2)
      – LED interior lighting
      – Touchscreen secondary display
    • Ride control adjustable speed activation
    • Preventative maintenance reminders
    • Integrated help function (26 languages)
    • Sunscreen, front and rear
    • Camera, rearview (standard in Europe)
    • Cold start package:
      – Ether starting aid, block heater and additional batteries, 1,000 CCA (4 total)
    • Counterweight, (heavy and logger)
    • Coupler, (Fusion and ISO 23727)
    • Debris packages (low, medium, high)
    • Fenders (extended cover and full coverage)
    • Guards
      – Power train, (lower, side, driveshaft and crankcase)
      – Windshield and lights
      – Cylinders, tilt and steering
      – Rear radiator, heavy duty
    • Linkage, high lift
    • Lights, auxiliary, halogen or LED with engine compartment lights
    • Payload Technology
      – Cat Production Measurement (CPM)
      – CPM Printer
    • Rear Object Detection
    • Radio packages:
      – Radio ready with Bluetooth
      – Radio, AM/FM with Bluetooth and clock
      – Radio, AM/FM with CD player deluxe, weatherband, Bluetooth and clock
    • Seats:
      – Deluxe seat – fully adjustable fabric air suspension seat with mid seat backrest
      – Premium seat – fully adjustable leather and fabric air suspension with high backrest and air lumbar support. Heated and cooled bottom cushion and backrest.
    • Steering:
      – Dual mode and Secondary
    • Tires:
      – Bias ply, 17.5, 20.5-25, Skidder
      – Radial, 17.5, 20.5, 23.5, 550/65, 600/65, 650/65 R25
      – Solid tires, 620/65, 750/65 Agriculture
    • Tire Pressure Monitoring (TPM)
    • Toolbox
    • Work tools

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