Cat® wheel loaders set the standard for productivity, fuel efficiency, operator comfort and low operating costs. The Cat 938 Small Wheel Loader features a high torque C7.1 engine that works in conjunction with an intelligent hydrostatic power train to deliver exceptional fuel efficiency. Meets U.S. EPA Tier 4 Final and EU Stage V emission standards, designed to manage itself so you can concentrate on your work. Extended service intervals to 1000 hours reduce fluid and filter use by up to 45% (compared to previous M Series models) while keeping operating cost low.
Rated Gross Power - SAE J1995 191 hp
Operating Weight 35528 lb
Bucket Capacities 1.9-5.0 m3 (2.5-6.5 yd3)
Height - Ground to Cab** 10.92 ft
Bore 4in
Displacement 427in³
Engine Model Cat C7.1*
Maximum Gross Torque - Engine Speed 1400r/min
Maximum Gross Torque - ISO 14396 664ft·lbf
Maximum Gross Torque - SAE J1995 673ft·lbf
Maximum Net Torque - ISO 9249 658ft·lbf
Maximum Net Torque - SAE J1349 656ft·lbf
Note *Meets U.S EPA Tier 4 Final, EU Stage V off-highway, and Japan 2014 emission standards.
Note (1) Advertised power is tested per the specified standard in effect at the time of manufacture
Note (2) Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when 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.
Performance Mode Automatic
Rated Engine Power - ISO 14396 188hp
Rated Engine Power - ISO 14396 (DIN) 191mhp
Rated Gross Power - Rated Engine Speed 1800r/min
Rated Gross Power - SAE J1995 191hp
Rated Gross Power - SAE J1995 (DIN) 194mhp
Rated Net Power - ISO 9249 (DIN) at Minimum Fan Speed 188mhp
Rated Net Power - ISO 9249 at Minimum Fan Speed 185hp
Rated Net Power - SAE J1349 at Minimum Fan Speed 185hp
Stroke 5in
Operating Weight 35528lb
Operating Weight - High Lift 36210lb
Bucket Capacities 1.9-5.0 m3 (2.5-6.5 yd3)
Articulation Angle 40°
Carry Height - Bucket Pin 2ft
Clearance - Bucket at 45°* 11.16ft
Clearance - Level Bucket** 13.83ft
Clearance - Load over Height** 11.66ft
Departure Angle 33°
Dig Depth** 5.25in
Dump Angle at Full Lift 47°
Height - Bucket Pin** 14.92ft
Height - Ground Clearance** 1.25ft
Height - Ground to Axle Center** 2.25ft
Height - Ground to Beacon** 12.17ft
Height - Ground to Cab** 10.92ft
Height - Overall** 19.2ft
Length - Hitch to Front Axle 5ft
Length - Overall* 27.58ft
Length - Rear Axle to Bumper 6.42ft
Length - Wheel Base 10ft
Note (1) *Vary with bucket.
Note (2) **Vary with tire.
Note (3) Dimensions listed are for a machine configured with 2.5 m³ (3.2 yd³) general purpose Fusion™ bucket, bolt-on cutting edge, standard counterweights, additional guarding, 80 kg (176 Ib) operator and 20.5 R25 (L-3) XHA2 tires.
Operating Weight 36210lb
Rack Angle at Carry 48°
Rack Angle at Full Lift 53°
Reach - Bucket at 45°* 4.66ft
Turning Radius - Inside of Tires 9.33ft
Turning Radius - Outside of Tires 18.16ft
Turning Radius - Over Bucket 21.25ft
Width - Bucket 9ft
Width - Over Tires 8.83ft
Width - Tread Center 6.83ft
Maximum Flow - Steering Pump 34gal/min
Maximum Working Pressure - Steering Pump 3500psi
Steering Cycle Times (Full Left to Full Right) - Maximum RPM: 90 RPM Steering Wheel Speed 2.3s
Steering Cycle Times (Full Left to Full Right) - Minimum RPM: Pump Flow Limited 3.1s
Steering Cylinder - Bore Diameter 3.1in
Steering Cylinder - Rod Diameter 2in
Steering Cylinder - Stroke 15.7in
Hydraulic Cycle Time - Dump (at Maximum Lift Height) 1.5s
Hydraulic Cycle Time - Float Down, Maximum Lift to Ground Level 2.7s
Hydraulic Cycle Time - Raise, Ground Level to Maximum Lift 5.5s
Hydraulic Cycle Time - Total Cycle Time 9.7s
Lift Cylinder: Standard Lift Linkage - Bore Diameter 4.7in
Lift Cylinder: Standard Lift Linkage - Rod Diameter 2.6in
Lift Cylinder: Standard Lift Linkage - Stroke 31.1in
Maximum Flow - Implement Pump 50gal/min
Maximum Flow - Implement Pump - 3rd Function Maximum Flow* 50gal/min
Maximum Flow - Implement Pump - 4th Function Maximum Flow* 42gal/min
Maximum Working Pressure - Implement Pump 4061psi
Note *3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
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
Tilt Cylinder: Standard Lift Linkage - Bore Diameter 5.9in
Tilt Cylinder: Standard Lift Linkage - Rod Diameter 3.5in
Tilt Cylinder: Standard Lift Linkage - Stroke 21.9in
Cooling System 7.9gal (US)
Diesel Exhaust Fluid (DEF) Tank 5gal (US)
Engine Crankcase 5.3gal (US)
Front Axles 9.2gal (US)
Fuel Tank 51.5gal (US)
Hydraulic System - Including Tank 4.93gal (US)
Hydraulic Tank 23.8gal (US)
Note DEF used in Cat systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1:2019.
Rear Axles 9.2gal (US)
Transmission - Gear Box 2.2gal (US)
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).
Note (1) Other tire choices are available. Contact your Cat dealer for details.
Note (2) In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities.
Note (3) Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.
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), 17.5 R25, radial (L-2), 17.5 R25, radial (L-3), 17.5 R25, radial (L-5), 550/65 R25 radial (L-3), Skidder/Agriculture
Standard Size 20.5 R25, radial (L-3)
FOPS ISO 3449:2005 LEVEL II
ROPS ISO 3471:2008
Front Fixed; Locking differential (standard)
Rear Oscillating ± 11 degrees; Open differential (standard); Limited slip differential (optional)
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 (4.2 lb) of refrigerant which has a CO2 equivalent of 2.717 metric tonnes (2.99 tons).
Average Exterior Sound Pressure (ISO 6395:2008) 101dB(A)
Note (1) European Union Directive 2000/14/EC and UK Noise Regulation 2001 No. 1701.
Operator Sound Pressure (ISO 6396:2008) 68dB(A)
Recyclability 96%
Articulation Angle 40°
Carry Height - Bucket Pin 1.33ft
Clearance - Bucket at 45°* 9.3ft
Clearance - Level Bucket** 11.9ft
Clearance - Load over Height** 11ft
Departure Angle 33°
Dig Depth** 4in
Dump Angle at Full Lift 49°
Height - Bucket Pin** 13ft
Height - Ground Clearance** 1.25ft
Height - Ground to Axle Center** 2.25ft
Height - Ground to Beacon** 12.17ft
Height - Ground to Cab** 10.92ft
Height - Overall** 17.33ft
Length - Hitch to Front Axle 5ft
Length - Overall* 25.08ft
Length - Rear Axle to Bumper 6.42ft
Length - Wheel Base 10ft
Note (1) *Vary with bucket.
Note (2) **Vary with tire.
Note (3) Dimensions listed are for a machine configured with 2.5 m³ (3.2 yd³) general purpose Fusion™ bucket, bolt-on cutting edge, standard counterweights, additional guarding, 80 kg (176 Ib) operator and 20.5 R25 (L-3) XHA2 tires.
Operating Weight 35528lb
Rack Angle at Carry 43°
Rack Angle at Full Lift 54°
Reach - Bucket at 45°* 3.75ft
Turning Radius - Inside of Tires 9.33ft
Turning Radius - Outside of Tires 18.16ft
Turning Radius - Over Bucket 20.08ft
Width - Bucket 9ft
Width - Over Tires 8.83ft
Width - Tread Center 6.83ft
NOTE: Not all features are available in all regions.
75 mm (3 in) retractable seatbelt
Automatic temperature control
Cab, enclosed ROPS/FOPS pressurized and sound suppressed
Push to Start
8 Inch Touch Screen
Jog Dial with screen control
Programmable Joystick
Cup holders
External mirrors with lower parabolic
Ground level cab door release
Hydraulic control lockout
Interior cab lighting, door
Lunch box storage
Operator Not Present system
Radio ready speakers
Rear window defrost, electric
Seat mounted electronic implement controls, adjustable
Sliding glass on side window
Column mounted multi function control lights, wipers, turn signal
Suspension seat, fabric
Tilt steering wheel
Tinted front glass
Wet arm wiper/washer, 2-speed and intermittent, front
Wet arm wiper washer, rear
Mounting Provision
Digital hour meter, odometer and tachometer
Digital ground speedometer and direction indicator
Engine coolant temperature gauge
Fuel and diesel exhaust fluid levels
Hydraulic oil temperature gauge
Cat C7.1 engine
Auto idle shut down feature
Auto Engine RPM
Auto Differential Lock
Tier 4 Final/EU Stage V compliant
Turbocharged and aftercooled
Filtered crankcase breather
Diesel particulate filter
Selective catalyst reduction
Dry type air cleaner
Coolant protection to –34 °C (–29 °F)
Fuel priming pump, automatic
Fuel water separator
Differential lock in front axle
Axle seal guards
Enclosed wet disc full hydraulic brakes
Parking brake, electric
Lubed for life driveshafts
Hydrostatic transmission with electronic control
Operator modes (TC, Hystat,
Single Pedal and Ice)
Directional shift aggressiveness (fast, medium, slow)
Auto Wheel Torque control, adjust wheel torque
Creeper control, adjust ground speed
Single plane cooling package, wide 6 fins per inch density
Hydraulically driven demand cooling fan
Scheduled Oil Sampling (S·O·SSM) port, engine, coolant, transmission
Automatic lift and bucket kickouts, adjustable in-cab
Bucket and fork modes, adjustable in-cab
Cylinder damping at kickout and mechanical end stops
Fine mode control (fast, medium, slow)
Hydraulic response setting (fast, medium, slow)
Hydraulic diagnostic connectors and
S·O·S ports
Hydraulic sight gauge, visible
Load sensing hydraulics and steering
Seat mounted hydraulic joystick controls
Cat Payload 250 hours of Demo
Alternator, 115-amp, heavy duty
12V power supply in cab (2)
Batteries, 1,000 CCA (2) 24-volt system, disconnect switch
Back up alarm
Emergency shutdown switch
LED rear stop and turn lights
Heavy duty gear reduction starter
Product Link™ Elite
Remote jump start post
Resettable main and critical function breakers
Roading lights front and rear
Large-access enclosure doors with adjustable close/open force
Parallel lift loader linkage
Recovery hitch with pin
Remote mounted lubrication points
Lockable compartments
1000-hour Service Intervals (after initial 500)
NOTE: Not all features are available in all regions.
Joystick steering – 25 mph (40 kph) capable
Radio packages
Telescoping Steering Column
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. Seat is heated and ventilated on bottom cushion and backrest.
Rear Object Detection
Multi View Camera
Front View Camera, roof mounted
Heated external Mirrors (2)
Electrically adjustable and heated external mirrors (2)
Internal Mirrors (2)
Sunscreen, front and rear
Windshield Washing Platform
Powered precleaned for cab air
Cab guarding
Differential, limited slip, rear
Powertrain Guarding
Tire Pressure Monitoring (TPM)
Range of Tire Options
Fenders (extended cover and full coverage)
Auxiliary flow, third and fourth function
Connect Under Pressure Disconnects
Ride Control System, adjustable via display
Autolube, integrated in display
Biodegradable Oil
Debris packages (low, medium, high)
Cold start package
Ether starting aid, block heater and additional batteries, 1,000 CCA (4 total)
Lights, auxiliary, halogen or LED with engine and DEF compartment lights
Beacon light, strobe
Light Guarding
Linkage, high lift
Coupler, (Fusion and ISO 23727:2009)
Heavy Counterweight
Aggregate Counterweight
Cat Payload Printer
Cylinder Guarding
Range of Work Tool Attachments
