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
143 kW
Engine Model
Cat C7.1*
Performance Mode
Automatic
Product specifications for 938 Small Wheel Loaders
Engine
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Rated Gross Power – SAE J1995
143 kW
Engine Model
Cat C7.1*
Performance Mode
Automatic
Rated Gross Power – Rated Engine Speed
1800 r/min
Rated Gross Power – SAE J1995 (DIN)
194 mhp
Rated Engine Power – ISO 14396
140 kW
Rated Engine Power – ISO 14396 (DIN)
191 mhp
Rated Net Power – SAE J1349 at Minimum Fan Speed
138 kW
Rated Net Power – ISO 9249 at Minimum Fan Speed
138 kW
Rated Net Power – ISO 9249 (DIN) at Minimum Fan Speed
188 mhp
Maximum Gross Torque – Engine Speed
1400 r/min
Maximum Gross Torque – SAE J1995
912 N·m
Maximum Gross Torque – ISO 14396
900 N·m
Maximum Net Torque – SAE J1349
889 N·m
Maximum Net Torque – ISO 9249
892 N·m
Displacement
7.01 l
Bore
105 mm
Stroke
135 mm
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.
Weights
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Operating Weight
16115 kg
Operating Weight – High Lift
16425 kg
Buckets
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Bucket Capacities
1.9-5.0 m3 (2.5-6.5 yd3)
Steering
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Steering Cylinder – Bore Diameter
80 mm
Steering Cylinder – Rod Diameter
50 mm
Steering Cylinder – Stroke
399 mm
Maximum Flow – Steering Pump
130 l/min
Maximum Working Pressure – Steering Pump
24130 kPa
Steering Cycle Times (Full Left to Full Right) – Minimum RPM: Pump Flow Limited
3.1 s
Steering Cycle Times (Full Left to Full Right) – Maximum RPM: 90 RPM Steering Wheel Speed
2.3 s
Loader Hydraulic System
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Maximum Flow – Implement Pump
190 l/min
Maximum Flow – Implement Pump – 3rd Function Maximum Flow*
190 l/min
Maximum Flow – Implement Pump – 4th Function Maximum Flow*
160 l/min
Maximum Working Pressure – Implement Pump
28000 kPa
Relief Pressure – Tilt Cylinder
30000 kPa
Relief Pressure – Tilt Cylinder – 3rd and 4th Function Maximum Working Pressure
28000 kPa
Relief Pressure – Tilt Cylinder – 3rd and 4th Function Relief Pressure
30000 kPa
Lift Cylinder: Standard Lift Linkage – Bore Diameter
120 mm
Lift Cylinder: Standard Lift Linkage – Rod Diameter
65 mm
Lift Cylinder: Standard Lift Linkage – Stroke
789 mm
Tilt Cylinder: Standard Lift Linkage – Bore Diameter
150 mm
Tilt Cylinder: Standard Lift Linkage – Rod Diameter
90 mm
Tilt Cylinder: Standard Lift Linkage – Stroke
555 mm
Hydraulic Cycle Time – Raise, Ground Level to Maximum Lift
5.5 s
Hydraulic Cycle Time – Dump (at Maximum Lift Height)
1.5 s
Hydraulic Cycle Time – Float Down, Maximum Lift to Ground Level
2.7 s
Hydraulic Cycle Time – Total Cycle Time
9.7 s
Note
*3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
Service Refill Capacities
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Fuel Tank
195 l
Cooling System
30 l
Engine Crankcase
20 l
Transmission – Gear Box
8.5 l
Front Axles
35 l
Rear Axles
35 l
Hydraulic System – Including Tank
170 l
Hydraulic Tank
90 l
Diesel Exhaust Fluid (DEF) Tank
19 l
Note
DEF used in Cat systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1:2019.
Transmission
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Forward and Reverse – Range 1*
1-13 km/h (0.6-8 mph)
Forward and Reverse – Range 2
13 km/h
Forward and Reverse – Range 3
27 km/h
Forward and Reverse – Range 4
40 km/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).
Tires
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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), 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
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.
Cab
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ROPS
ISO 3471:2008
FOPS
ISO 3449:2005 LEVEL II
Axles
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Front
Fixed; Locking differential (standard)
Rear
Oscillating ± 11 degrees; Open differential (standard); Limited slip differential (optional)
Air Conditioning System
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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).
Sound
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Operator Sound Pressure (ISO 6396:2008)
68 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
101 dB(A)
Note (1)
European Union Directive 2000/14/EC and UK Noise Regulation 2001 No. 1701.
Sustainability
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Recyclability
96%
Dimensions with Bucket – Standard Lift
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Height – Ground to Cab**
3340 mm
Height – Ground to Beacon**
3707 mm
Height – Ground to Axle Center**
685 mm
Height – Ground Clearance**
386 mm
Length – Overall*
7656 mm
Length – Rear Axle to Bumper
1968 mm
Length – Hitch to Front Axle
1525 mm
Length – Wheel Base
3050 mm
Clearance – Bucket at 45°*
2834 mm
Clearance – Load over Height**
3354 mm
Clearance – Level Bucket**
3641 mm
Height – Bucket Pin**
3969 mm
Height – Overall**
5273 mm
Reach – Bucket at 45°*
1146 mm
Carry Height – Bucket Pin
394 mm
Dig Depth**
101 mm
Width – Bucket
2750 mm
Width – Tread Center
2083 mm
Turning Radius – Over Bucket
6120 mm
Width – Over Tires
2693 mm
Turning Radius – Outside of Tires
5546 mm
Turning Radius – Inside of Tires
2843 mm
Rack Angle at Full Lift
54 °
Dump Angle at Full Lift
49 °
Rack Angle at Carry
43 °
Departure Angle
33 °
Articulation Angle
40 °
Operating Weight
16115 kg
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.
Dimensions with Bucket – High Lift
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Height – Ground to Cab**
3340 mm
Height – Ground to Beacon**
3707 mm
Height – Ground to Axle Center**
685 mm
Height – Ground Clearance**
386 mm
Length – Overall*
8397 mm
Length – Rear Axle to Bumper
1968 mm
Length – Hitch to Front Axle
1525 mm
Length – Wheel Base
3050 mm
Clearance – Bucket at 45°*
3415 mm
Clearance – Load over Height**
3561 mm
Clearance – Level Bucket**
4222 mm
Height – Bucket Pin**
4550 mm
Height – Overall**
5853 mm
Reach – Bucket at 45°*
1413 mm
Carry Height – Bucket Pin
612 mm
Dig Depth**
135 mm
Width – Bucket
2750 mm
Width – Tread Center
2083 mm
Turning Radius – Over Bucket
6483 mm
Width – Over Tires
2693 mm
Turning Radius – Outside of Tires
5546 mm
Turning Radius – Inside of Tires
2843 mm
Rack Angle at Full Lift
53 °
Dump Angle at Full Lift
47 °
Rack Angle at Carry
48 °
Departure Angle
33 °
Articulation Angle
40 °
Operating Weight
16425 kg
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.
Enjoy All Day Comfort
Have a seat in the new Cat small wheel loader and enjoy automatic temperature control, class leading sound levels, enhanced all-around visibility and low-effort joystick controls that move with you on a fully adjustable seat suspension. A large spacious operator environment combined with Caterpillar hydraulic cylinder damping and smooth predictable controls make this the most comfortable seat on your jobsite.
An upgrade to multi-view camera and rear object detection gives you an extra eye on the jobsite while the new optional force feedback joystick steering keeps you feeling confident on those long shifts. The operator not present function helps to isolate the machine if you leave the environment; while seat belt notifications give you a gentle reminder to buckle up.
Efficiently Powerful
Experience the difference with an intelligent hydrostatic power train and industry leading fuel savings through a lower maximum engine speed working in combination with a new auto engine RPM mode. This provides efficiency as standard with a boost in power when you need it. Optimize traction and minimize wheel slip with a new Auto Wheel Torque system tuned to provide peak performance while maximizing tire life and keeping operating costs low. Track your production and accurately hit your load targets with Cat Payload. 250 hours of Cat Payload demonstration will be included as standard with an optional subscription for extended use.
Work Made Easy
Move more with the Caterpillar patented quick loading performance series buckets and optimized Z-bar linkage with enhanced forward visibility that combines the digging efficiency of a traditional Z-bar with tool carrier capabilities. The parallel lift and high tilt forces throughout the working range allow you to confidently handle loads with precise control.
Multi-function work has never been easier with dedicated pumps for each system and a flow sharing implement valve governed by an intelligent power management system. Simultaneously lift, steer, and drive without compromise. Upgrade to autolube and tire pressure monitoring to make service easy and get to work quicker. Light the way with auto roading lights that come on at night fall.
Customize Your Experience
Meet your application requirements and individual preferences with Caterpillar industry first Hystat™ Operator Modes featuring four unique power train settings. Select classic torque converter for smooth rollout, conventional hystat for aggressive engine braking, an ice mode that maximizes your control on slippery underfoot, and an all new single pedal mode for simplified use.
Fine tune machine performance with adjustments at your fingertips through programmable joysticks, soft touch buttons, and a new jog dial that works in combination with a standard touch screen display. Quickly recall attachment profiles that maintain key settings for versatility on the jobsite and optimal efficiency.
Upgrades and Services
Enjoy a full range of upgrades and accessories to configure your small wheel loader for a broader range of applications.
Utilize readily available services and maintenance parts, including a range of self-service options (SSO) and dealer installed kits.
Purpose Built: Handlers Arrangements – Aggregate Handler
Increased Payload: Additional counterweight improves stability without reducing ground clearance or departure angle to maximize performance.
Long Life Sand and Gravel Buckets: Performance series buckets deliver higher fill factors and better material retention for significant productivity and fuel efficiency improvements. Buckets feature a long floor, open throat, curved side bars and additional serviceable wear plates including corner guards.
Protect your Power Train: Increase your fording depth with optional elevated breathers. Remote mounted high on the machine for the front and rear axles and hydrostatic gear box. Allows settling pond cleanout without contamination.
Purpose Built: Handlers Arrangements – Waste Handler
Guard Your Investment: Choose from a complete range of optional guarding to protect your machine from the harsh environment of a waste handling application. Machine guarding is purpose built to protect the machine’s major components.
Breathe Clean: Maximize your engine life and extend filter cleaning intervals with a turbine pre-cleaner. Keep cool with a reversing fan to purge the single plane, widely spaced core cooling package and brush-less sealed alternator. Breathe clean with a powered pre-cleaner for the operator environment.
Maximize Tire Life: Fine tune your wheel torque to match the underfoot conditions and maximize performance while extending tire life. Standard auto wheel torque and auto differential lock are ideal for waste handling applications.
Sustainability
The Cat® C7.1 engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Tier 5 emission standards.
Engine Idle Management System (EIMS) helps maximize fuel efficiency and reduce greenhouse gas emissions while maintaining machine performance.
Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
Performance Series Buckets have rounded side boards, a longer floor and open angle to carry more and load quicker so each pass is the most efficient.
Rimpull Control is a quick way to adjust the torque to the tires for less slipping and tire wear.
Cat® Production Measurement provides real-time payload weighing which help you maximize productivity, reduce fuel burn and greenhouse gas emissions, all while improving job site efficiency and lowering costs.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
Power on Demand, transparent to the operator, provides full-time efficiency and power when you need it.
Tire Pressure Monitoring provides real-time tire pressure information to the operator to help increase tire wear and achieve better fuel efficiency and reduced greenhouse gas emissions.
Intelligent Hystat Transmission helps improves control and reduces fuel consumption and greenhouse gas emissions in load and carry applications.
Variable Displacement Pumps match power to load as application requirements change.
938 Standard Equipment
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NOTE: Not all features are available in all regions.
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OPERATOR ENVIRONMENT
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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
POWER TRAIN
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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
HYDRAULICS
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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
ELECTRICAL
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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
OTHER
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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)
938 Optional Equipment
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NOTE: Not all features are available in all regions.
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OPERATOR ENVIRONMENT
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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
POWER TRAIN
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Differential, limited slip, rear
Powertrain Guarding
Tire Pressure Monitoring (TPM)
Range of Tire Options
Fenders (extended cover and full coverage)
HYDRAULICS
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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)
ELECTRICAL
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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
OTHER OPTIONAL EQUIPMENT
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Linkage, high lift
Coupler, (Fusion and ISO 23727:2009)
Heavy Counterweight
Aggregate Counterweight
Cat Payload Printer
Cylinder Guarding
Range of Work Tool Attachments
