The 938 Small Wheel Loader sets the standard for productivity, fuel efficiency, operator comfort and low operating costs. Experience the industry benchmark.
Cat
938 Small Wheel Loader
Overview
Features
Specifications
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Engine
Spec Value Rated Gross Power - SAE J1995 191 hp 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 188 hp Rated Engine Power - ISO 14396 (DIN) 191 mhp Rated Net Power - SAE J1349 at Minimum Fan Speed 185 hp Rated Net Power - ISO 9249 at Minimum Fan Speed 185 hp 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 673 ft·lbf Maximum Gross Torque - ISO 14396 664 ft·lbf Maximum Net Torque - SAE J1349 656 ft·lbf Maximum Net Torque - ISO 9249 658 ft·lbf Displacement 427 in³ Bore 4 in Stroke 5 in 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
Spec Value Operating Weight 35528 lb Operating Weight - High Lift 36210 lb -
Buckets
Spec Value Bucket Capacities 1.9-5.0 m3 (2.5-6.5 yd3) -
Steering
Spec Value Steering Cylinder - Bore Diameter 3.1 in Steering Cylinder - Rod Diameter 2 in Steering Cylinder - Stroke 15.7 in Maximum Flow - Steering Pump 34 gal/min Maximum Working Pressure - Steering Pump 3500 psi 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
Spec Value Maximum Flow - Implement Pump 50 gal/min Maximum Flow - Implement Pump - 3rd Function Maximum Flow* 50 gal/min Maximum Flow - Implement Pump - 4th Function Maximum Flow* 42 gal/min Maximum Working Pressure - Implement Pump 4061 psi Relief Pressure - Tilt Cylinder 4351 psi Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure 4061 psi Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure 4351 psi Lift Cylinder: Standard Lift Linkage - Bore Diameter 4.7 in Lift Cylinder: Standard Lift Linkage - Rod Diameter 2.6 in Lift Cylinder: Standard Lift Linkage - Stroke 31.1 in Tilt Cylinder: Standard Lift Linkage - Bore Diameter 5.9 in Tilt Cylinder: Standard Lift Linkage - Rod Diameter 3.5 in Tilt Cylinder: Standard Lift Linkage - Stroke 21.9 in 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
Spec Value Fuel Tank 51.5 gal (US) Cooling System 7.9 gal (US) Engine Crankcase 5.3 gal (US) Transmission - Gear Box 2.2 gal (US) Front Axles 9.2 gal (US) Rear Axles 9.2 gal (US) Hydraulic System - Including Tank 4.93 gal (US) Hydraulic Tank 23.8 gal (US) Diesel Exhaust Fluid (DEF) Tank 5 gal (US) Note DEF used in Cat systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1:2019. -
Transmission
Spec Value Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph) Forward and Reverse - Range 2 8 mile/h Forward and Reverse - Range 3 17 mile/h Forward and Reverse - Range 4 25 mile/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
Spec Value 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
Spec Value ROPS ISO 3471:2008 FOPS ISO 3449:2005 LEVEL II -
Axles
Spec Value Front Fixed; Locking differential (standard) Rear Oscillating ± 11 degrees; Open differential (standard); Limited slip differential (optional) -
Air Conditioning System
Spec Value 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
Spec Value 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
Spec Value Recyclability 96% -
Dimensions with Bucket - Standard Lift
Spec Value Height - Ground to Cab** 10.92 ft Height - Ground to Beacon** 12.17 ft Height - Ground to Axle Center** 2.25 ft Height - Ground Clearance** 1.25 ft Length - Overall* 25.08 ft Length - Rear Axle to Bumper 6.42 ft Length - Hitch to Front Axle 5 ft Length - Wheel Base 10 ft Clearance - Bucket at 45°* 9.3 ft Clearance - Load over Height** 11 ft Clearance - Level Bucket** 11.9 ft Height - Bucket Pin** 13 ft Height - Overall** 17.33 ft Reach - Bucket at 45°* 3.75 ft Carry Height - Bucket Pin 1.33 ft Dig Depth** 4 in Width - Bucket 9 ft Width - Tread Center 6.83 ft Turning Radius - Over Bucket 20.08 ft Width - Over Tires 8.83 ft Turning Radius - Outside of Tires 18.16 ft Turning Radius - Inside of Tires 9.33 ft 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 35528 lb 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
Spec Value Height - Ground to Cab** 10.92 ft Height - Ground to Beacon** 12.17 ft Height - Ground to Axle Center** 2.25 ft Height - Ground Clearance** 1.25 ft Length - Overall* 27.58 ft Length - Rear Axle to Bumper 6.42 ft Length - Hitch to Front Axle 5 ft Length - Wheel Base 10 ft Clearance - Bucket at 45°* 11.16 ft Clearance - Load over Height** 11.66 ft Clearance - Level Bucket** 13.83 ft Height - Bucket Pin** 14.92 ft Height - Overall** 19.2 ft Reach - Bucket at 45°* 4.66 ft Carry Height - Bucket Pin 2 ft Dig Depth** 5.25 in Width - Bucket 9 ft Width - Tread Center 6.83 ft Turning Radius - Over Bucket 21.25 ft Width - Over Tires 8.83 ft Turning Radius - Outside of Tires 18.16 ft Turning Radius - Inside of Tires 9.33 ft 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 36210 lb 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.
Standard Equipment
NOTE: Not all features are available in all regions.
OPERATOR ENVIRONMENT
- 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
- 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
- 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
- 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
- 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)
Optional Equipment
NOTE: Not all features are available in all regions.
OPERATOR ENVIRONMENT
- 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
- Differential, limited slip, rear
- Powertrain Guarding
- Tire Pressure Monitoring (TPM)
- Range of Tire Options
- Fenders (extended cover and full coverage)
HYDRAULICS
- 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
- 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
- Linkage, high lift
- Coupler, (Fusion and ISO 23727:2009)
- Heavy Counterweight
- Aggregate Counterweight
- Cat Payload Printer
- Cylinder Guarding
- Range of Work Tool Attachments
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