Small Wheel Loaders
938M Small Wheel Loader
-
Maximum Gross Power188 hp
-
Engine ModelCat® C7.1 ACERT™
-
Rated Net Power182 HP
-
Maximum Rated Gross Power188 HP
Engine
- Maximum Gross Power
- 188 hp
- Engine Model
- Cat® C7.1 ACERT™
- Rated Net Power
- 182 HP
- Maximum Rated Gross Power
- 188 HP
- Maximum Rated Gross Power
- 190 HP
- Maximum Rated Gross Power
- 1800 r/min
- Maximum Rated Gross Power
- 188 HP
- Maximum Rated Gross Power
- 190 HP
- Rated Net Power
- 183 hp
- Rated Net Power
- 184 HP
- Rated Net Power
- 186 mhp
- Maximum Gross Torque
- 664 ft·lbf
- Maximum Net Torque
- 649 ft·lbf
- Maximum Rated Gross Power
- 1600 r/min
- Maximum Rated Gross Power
- 173 HP
- Maximum Rated Gross Power
- 176 HP
- Rated Net Power
- 170 hp
- Rated Net Power
- 172 mhp
- Maximum Gross Torque
- 642 ft·lbf
- Maximum Net Torque
- 627 ft·lbf
- Rated Net Power
- 184 hp
- Maximum Net Torque
- 650 ft·lbf
- Engine Model
- Cat C7.1 ACERT**
- 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.
- Note
- *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
- Rated Net Power
- 170 hp
- Note
- **The Cat C7.1 ACERT engine meets Tier 4 Final/Stage V off-highway emission standards.
- Maximum Net Torque
- 628 ft·lbf
- Displacement
- 427 in³
- Displacement
- 427 in³
- Maximum Gross Power
- 176 mhp
- Maximum Gross Power
- 188 hp
- Maximum Gross Power
- 190 mhp
- Maximum Gross Power
- 173 hp
- Bore
- 4 in
- Bore
- 4 in
- Stroke
- 5 in
- Stroke
- 5 in
- Displacement
- 427 in3
- Displacement
- 427 in³
- Maximum Net Torque
- 628 lb/ft
- Rated Net Power
- 169 HP
- Maximum Net Torque
- 628 lb/ft
- Emissions
- Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
- Note
- * Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
- Emissions
- Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
- Note
- Spark arrestor performance as standard – Meets performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).
Buckets
- Bucket Capacities
- 2.5-5.0 m3 (3.3-6.5 yd3)
- Bucket Capacities
- 2.5-5.0 m3 (3.2-6.5 yd3)
- Bucket Capacities
- 2.5-3.2 m³ (3.2-4.2 yd³)
- Bucket Capacities
- 3.1-5.0 m³ (4.0-6.5 yd³)
- Bucket Capacities
- 2.5-3.2 m3 (3.2-4.2 yd3)
- Bucket Capacities
- 3.1-5.0 m3 (4.0-6.5 yd3)
Weights
- Operating Weight
- 36216 lb
- Operating Weight
- 35778 lb
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
- Note
- Other tire choices are available. Contact your Cat dealer for details.
- Standard Size
- 20.5 R25, radial (L-3)
- Note
- In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities.
- 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); 23.5 R25, radial (L-3); 650/65 R25 radial (L-3); Skidder/Agriculture; Solid Tires
- Note
- Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.
Axles
- Front
- Fixed; Locking differential (standard)
- Rear
- Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional)
- Rear
- Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional)
- Front
- Fixed; Locking differential (standard)
Cab
- ROPS
- SAE J1040 MAY94, ISO 3471-1994.
- ROPS
- ISO 3471:2008
- FOPS
- SAE J/ISO 3449 APR98, Level II, ISO 3449 1992 Level II.
- FOPS
- ISO 3449:2008 Level II
- Note
- *The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds.
- Note
- Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
- Note
-
The declared dynamic operator sound pressure levels per ISO 6396:2008*, when properly installed and maintained, are:
– Standard cab: 68 ±3 dB(A)
– Deluxe cab: 66 ±2 dB(A)
Sound
- Note
- European Union Directive “2000/14/EC”
- Average Exterior Sound Pressure
- 101 dB(A)
- Operator Sound Pressure
- 72 dB(A)
Loader Hydraulic System
- Hydraulic Cycle Time
- 9.7 s
- Maximum Flow
- 50 gal/min
- Maximum Flow
- 50 gal/min
- Maximum Flow
- 42 gal/min
- Maximum Working Pressure
- 4061 psi
- Relief Pressure
- 4351 psi
- Relief Pressure
- 4061 psi
- Relief Pressure
- 4351 psi
- Lift Cylinder
- 4.7 in
- Lift Cylinder
- 2.6 in
- Lift Cylinder
- 31.1 in
- Tilt Cylinder
- 5.9 in
- Tilt Cylinder
- 3.5 in
- Tilt Cylinder
- 21.9 in
- Cycle Times
- 5.5/6.2 seconds
- Cycle Times
- 1.5/1.7 seconds
- Cycle Times
- 2.7/2.7 seconds
- Cycle Times
- 9.7/10.6 seconds
- Note
- *3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display, when equipped.
- Hydraulic Cycle Time
- 10.6 s
- Hydraulic Cycle Time
- 5.5 s
- Lift Cylinder
- 4.7 in
- Lift Cylinder
- 2.6 in
- Lift Cylinder
- 31.1 in
- Maximum Flow
- 50 gal/min
- Maximum Working Pressure
- 4061 psi
- Note
- Implement system uses a dedicated load sensing variable displacement pump with dual double acting lift cylinders and a single double acting tilt cylinder.
- Note
- Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
- Relief Pressure
- 4351 psi
- Tilt Cylinder
- 5.9 in
- Tilt Cylinder
- 3.5 in
- Tilt Cylinder
- 21.9 in
- Hydraulic Cycle Time
- 1.7 s
- Hydraulic Cycle Time
- 1.5 s
- Hydraulic Cycle Time
- 6.2 s
- Hydraulic Cycle Time
- 2.7 s
- Hydraulic Cycle Time
- 2.7 s
- Maximum Flow
- 50 gal/min
Steering
- Steering Cylinder
- 3.1 in
- Steering Cylinder
- 2 in
- Steering Cylinder
- 15.7 in
- Maximum Flow
- 34 gal/min
- Maximum Working Pressure
- 3500 psi
- Maximum Steering Torque
- 42506 lbf-ft
- Maximum Steering Torque
- 31398 ft·lbf
- Steering Cycle Times
- 3.1 s
- Steering Cycle Times
- 2.3 s
- Steering Articulation Angle
- 40°
- Maximum Flow
- 34 gal/min
- Maximum Steering Torque
- 42506 ft·lbf
- Maximum Working Pressure
- 3500 psi
- Note
- Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
- Note
- Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
- Steering Cylinder
- 3.1 in
- Steering Cylinder
- 2 in
- Steering Cylinder
- 15.7 in
- Number of Steering Wheel Turns
- 3.3 turns
- Steering Cycle Times
- 2.3 s
Operating Specifications
- Full Turn Tip Load
- 22107 lb
- Full Turn Tip Load
- 22107 lb
Service Refill Capacities
- Fuel Tank
- 51.5 gal
- Cooling System
- 8.5 gal
- Engine Crankcase
- 5.3 gal
- Transmission
- 2.9 gal
- Front Axles
- 9.2 gal (US)
- Rear Axles
- 9.2 gal (US)
- Hydraulic System
- 44.9 gal
- Hydraulic Tank
- 23.8 gal
- Diesel Exhaust Fluid
- 5.0 gal
- Cooling System
- 7.9 gal (US)
- Diesel Exhaust Fluid
- 5 gal (US)
- Engine Crankcase
- 5.3 gal (US)
- Fuel Tank
- 51.5 gal (US)
- Hydraulic System
- 44.9 gal (US)
- Hydraulic Tank
- 23.8 gal (US)
- Transmission
- 2.9 gal (US)
- Note
- DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1.
Transmission
- Forward and Reverse
- 1-13 km/h (0.6-8 mph)
- Forward and Reverse
- 8 mile/h
- Forward and Reverse
- 17 mile/h
- Forward and Reverse
- 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.
- Note
- Factory default is 7 km/h (4.4 mph).
- 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).
Power Train
- Front Axle
- Fixed
- Front Axle
- Locking differential
- Rear Axle
- Oscillating
- Rear Axle
- ± 10.5 degrees
- Rear Axle
- ± 7 degrees
- Rear Axle
- ± 7 degrees
- Rear Axle
- Limited slip differential
- Brakes
- Outboard wet disc
- Brakes
- Spring applied hydraulically released
- Brakes
- Spring applied hydraulically released
- Brakes
- Outboard wet disc
- Front Axle
- Fixed
- Note
- Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
- Note
- 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
- Offset rims available to meet European roading requirements.
- Rear Axle
- Oscillating
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.
Sustainability
- Recyclability
- 94%
-
POWER TRAIN
- 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
– Filtered crankcase breather
– Diesel particulate filter
– Selective Catalyst Reduction - Coded start (requires secondary display)
- Coolant protection to –34° C (–29° F)
- Enclosed wet disc full hydraulic brakes
- Fuel priming pump, automatic
- Hydraulically driven demand cooling fan
- Hydrostatic transmission with electronic control
– Operator modes (Default, TC, Hystat, and Ice)
– Directional Shift Aggressiveness (fast, medium, slow)
– Rimpull control, adjust wheel torque
– Creeper control, adjust ground speed - Parking brake, electric
- Single plane cooling package wide six fins per inch density
- Throttle lock and max speed limiter
-
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) in fork mode
- Hydraulic response setting (fast, medium, slow)
- Hydraulic diagnostic connectors and S·O·SSM ports
- Load sensing hydraulics and steering
-
ELECTRICAL
- Alternator, 115 amp, heavy duty
- 12V power supply in cab (2)
- Batteries, 1,000 CCA (2) 24V system, disconnect switch
- Back-up alarm
- Emergency shutdown switch
- Halogen work and roading lights, LED rear tail lights
- Product Link™ PRO with three year subscription
- Remote jump start post
- Resettable main and critical function breakers
-
OPERATOR ENVIRONMENT
- 75 mm (3 in) retractable seat belt, with audible alarm and indicator
- Automatic temperature control
- External heated mirrors with lower parabolic
- Hydraulic control lockout
- Interior cab lighting, door and dome
- Interior rearview mirrors (2)
- Lunch box storage
- Radio ready speakers
- Rear window defrost, electric
- Seat-mounted electronic implement controls, adjustable
- Column mounted multi function control – lights, wipers, turn signal
- Tilt and telescopic steering wheel
- Tinted front glass
- Wet arm wiper/washer, 2-speed and intermittent, front
-
OTHER STANDARD EQUIPMENT
- Large-access enclosure doors with adjustable close/open force
- Parallel lift loader linkage
-
EU STANDARD EQUIPMENT
- Deluxe cab
- Secondary display
- Rearview camera
-
OPTIONAL EQUIPMENT
- Autolube, integrated in secondary display
- Auxiliary flow, third and fourth function, adjustable through secondary display
- Beacon light, strobe
- Cab, deluxe (standard in Europe, optional in North America)
– Electrically adjustable external heated mirrors (2)
– Secondary display to enable features and adjust parameters
– Sunscreen, front and rear - Camera, rearview (standard in Europe)
- Cold start package
- Counterweight, (heavy and logger)
- Coupler, (Fusion and ISO 23727)
- Debris packages (low, medium, high)
- Fenders (extended cover and full coverage)
- Guarding (machine and operator)
- Linkage, high lift
- Lights, auxiliary, halogen or LED with engine and DEF compartment lights
- Object Detection
- Product Link ELITE with capabilities for software push, data logging, histogram and trend mapping
- Radio packages
- Ride Control System, adjustable through secondary display
- Seats
– Deluxe seat – fully adjustable fabric air suspension seat with mid backrest and mechanical lumbar support
– 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. - Steering
– Dual mode and secondary - NOTE: Not all features are available in all regions.
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