Small Wheel Loaders 938K

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Key Specs

Maximum Gross Power
188 HP
140 kW
Operating Weight
33689 lb
15282 kg
Bucket Capacities
2.5-5 m³ (3.2-6.5 yd³)
2.5-5 m³ (3.2-6.5 yd³)

Overview

Configured for Success

The Cat® 938K 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 engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard.

Product Specifications for 938K

Maximum Gross Power 188 HP 140 kW
Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4) 188 HP 140 kW
Engine Model Cat® C7.1 Cat® C7.1
Maximum Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3*) 173 HP 129 kW
Note (2) *Range 4 power is boosted to be the same as Performance Mode. *Range 4 power is boosted to be the same as Performance Mode.
Note (1) Net power shown is the power available at the flywheel when the engine is equipped with alternator and air cleaner. Net power shown is the power available at the flywheel when the engine is equipped with alternator and air cleaner.
Maximum Gross Power - 1,800 rpm - ISO 14396 (metric) (Performance Power Mode: Range 1-4) 190 hp 190 hp
Net Power - 1,800 rpm - SAE J1349 (Performance Power Mode: Range 1-4) 182 HP 136 kW
Net Power - 1,600 rpm - ISO 9249 (metric) (Standard Power Mode: Range 1-3*) 173 hp 173 hp
Net Power - 1,800 rpm - ISO 9249 (metric) (Performance Power Mode: Range 1-4) 188 hp 188 hp
Net Power - 1,600 rpm - SAE J1349 (Standard Power Mode: Range 1-3*) 169 HP 126 kW
Maximum Gross Power - 1,600 rpm - ISO 14396 (metric) (Standard Power Mode: Range 1-3*) 175 hp 175 hp
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) 660 lb/ft 896 N·m
Displacement (Standard Power Mode: Speed Range 1-3*) 427 in³ 7.01 l
Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*) 641 lb/ft 870 N·m
Emissions Engine meets U.S. EPA Tier 3/EU Stage IIIA/Brazil MAR-1 equivalent emission standards. Engine meets U.S. EPA Tier 3/EU Stage IIIA/Brazil MAR-1 equivalent emission standards.
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) 672 lb/ft 912 N·m
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) 634 lb/ft 860 N·m
Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4) 653 lb/ft 886 N·m
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) 646 lb/ft 876 N·m
Displacement (Performance Power Mode: Speed Range 1-4) 427 in³ 7.01 l
Bucket Capacities 2.5-5 m³ (3.2-6.5 yd³) 2.5-5 m³ (3.2-6.5 yd³)
Bucket Capacities - General Purpose 2.5-3.2 m³ (3.2-4.2 yd³) 2.5-3.2 m³ (3.2-4.2 yd³)
Bucket Capacities - Light Material 3.1-5 m³ (4.0-6.5 yd³) 3.1-5 m³ (4.0-6.5 yd³)
Operating Weight 33689 lb 15282 kg
ROPS SAE J1040 MAY94, ISO 3471-1994 SAE J1040 MAY94, ISO 3471-1994
FOPS SAE J/ISO 3449 APR98, Level II, ISO 3449 1992 Level II SAE J/ISO 3449 APR98, Level II, ISO 3449 1992 Level II
Note (1) Cab and Rollover Protective Structures (ROPS) are standard. Cab and Rollover Protective Structures (ROPS) are standard.
Note (2) A semi-cab option is available. A semi-cab option is available.
Axles - Front 9.2 gal (US) 35 l
Engine Crankcase 5.2 gal (US) 19.5 l
Fuel Tank 51.5 gal (US) 195 l
Hydraulic Tank 23.8 gal (US) 90 l
Hydraulic System - Including Tank 44.9 gal (US) 170 l
Transmission - Gear Box 2.9 gal (US) 11 l
Axles - Rear 9.2 gal (US) 35 l
Cooling System 8.5 gal (US) 32 l
Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left 3.1 turns 3.1 turns
Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed 2.2 s 2.2 s
Maximum Working Pressure - Steering Pump 3500 psi 24130 kPa
Maximum Flow - Steering Pump 34 gal/min 130 l/min
Maximum Steering Torque - 40° (Full Turn) 31398 lb/ft 42570 N·m
Maximum Steering Torque - 0° (Straight Machine) 42506 lb/ft 57630 N·m
Steering Articulation Angle - Each Direction 40° 40°
Front Fixed; Open differential (standard); Locking differential (optional) Fixed; Open differential (standard); Locking differential (optional)
Rear Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional in some regions) Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional in some regions)
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level 2.7 s 2.7 s
Maximum Working Pressure - Implement Pump 4061 psi 28000 kPa
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time 10.6 s 10.6 s
Maximum Flow - Implement Pump 50 gal/min 190 l/min
Relief Pressure - Tilt Cylinder - 4th Function Maximum Working Pressure 4061 psi 28000 kPa
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Dump, at Maximum Lift Height 1.7 s 1.7 s
Maximum Flow - Implement Pump - 4th Function Maximum Flow* 40 gal/min 150 l/min
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Dump, at Maximum Lift Height 1.5 s 1.5 s
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time 9.7 s 9.7 s
Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure 4061 psi 28000 kPa
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Raise, Ground Level to Maximum Lift 6.2 s 6.2 s
Relief Pressure - Tilt Cylinder 4351 psi 30000 kPa
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Float Down, Maximum Lift to Ground Level 2.7 s 2.7 s
Note *Adjustable from 20% to 100% of maximum flow through the secondary display, when equipped. *Adjustable from 20% to 100% of maximum flow through the secondary display, when equipped.
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Raise, Ground Level to Maximum Lift 5.5 s 5.5 s
Maximum Flow - Implement Pump - 3rd Function Maximum Flow* 50 gal/min 190 l/min
Forward and Reverse - Range 2 8 mile/h 13 km/h
Forward and Reverse - Range 4 25 mile/h 40 km/h
Forward and Reverse - Range 3 17 mile/h 27 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). *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).
Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph) 1-13 km/h (0.6-8 mph)
Note (1) Other tire choices are available. Contact your Cat dealer for details. Other tire choices are available. Contact your Cat dealer for details.
Other Choices Vary by Region (1) 20.5-25 16 PR (L-3) 20.5-25 16 PR (L-3)
Note (3) Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model. Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.
Note (2) In certain applications, the loader's productive capabilities may exceed the tire's tonnes-km/h (ton-mph) capabilities. In certain applications, the loader's productive capabilities may exceed the tire's tonnes-km/h (ton-mph) capabilities.
Standard Size 20.5 R25, radial (L-3) 20.5 R25, radial (L-3)
Note (3) The declared exterior sound power level is 104 dB(A) when the value is measured according to the dynamic test procedures and the conditions that are specified in “ISO 6395:2008.” The declared exterior sound power level is 104 dB(A) when the value is measured according to the dynamic test procedures and the conditions that are specified in “ISO 6395:2008.”
Note (1) The declared dynamic operator sound pressure level is 72 dB(A) when “ISO 6396:2008” is used to measure the value for an enclosed cab. The declared dynamic operator sound pressure level is 72 dB(A) when “ISO 6396:2008” is used to measure the value for an enclosed cab.
Note (2) The measurement was conducted at 70% of the maximum engine cooling fan speed, with the cab doors and cab windows closed. The cab was properly installed and maintained. The sound level may vary at different engine cooling fan speeds. The measurement was conducted at 70% of the maximum engine cooling fan speed, with the cab doors and cab windows closed. The cab was properly installed and maintained. The sound level may vary at different engine cooling fan speeds.

938K Standard Equipment

POWER TRAIN

  • Auto idle shut down feature
  • Cat C7.1 engine
    • Power modes (Standard and Performance)
    • Power by range (High Power in Range 4)
    • Turbocharged and aftercooled
    • Filtered crankcase breather
  • 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
  • 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 mirrors with lower parabolic
  • Hydraulic control lockout
  • Interior cab lighting, door and dome
  • Interior rear view mirrors (2)
  • Lunch box storage
  • Radio ready speakers
  • Seat-mounted electronic implement controls, adjustable
  • Column mounted multi function control – lights, wipers, turn signal
  • Tilt and telescopic steering wheel
  • Tinted front glass

OTHER STANDARD EQUIPMENT

  • Large-access enclosure doors with adjustable close/open force
  • Parallel lift loader linkage

938K Optional Equipment

OPTIONAL EQUIPMENT

  • Auto lube, integrated in secondary display
  • Auxiliary flow, third and fourth function, adjustable through secondary display
  • Beacon light, strobe
  • Cab, deluxe
    • Camera, roof mounted, front view with separate display*
    • Rear window defroster (standard in Europe)
    • Secondary display to adjust settings (standard in Europe)
    • Sunscreen, front and rear
    • Wet arm wiper/washer, front and rear
    *Forward facing camera system may be required for local EU requirements. Consult your local Cat dealer for additional information.
  • Camera, rear view (standard in Europe)
  • Cold start package
  • Corrosion protection package
  • Counterweight, (heavy and logger)
  • Coupler, (Fusion™ and ISO 23727)
  • Debris packages (low, medium, high)
  • Differential lock, front axle
  • Fenders (extended cover and full coverage)
  • Guarding (machine and operator)
  • Linkage, high lift
  • Lights, auxiliary, halogen or LED with engine compartment lights
  • Lights, LED front roading
  • Load check valves
  • Object Detection
  • Product Link™ PRO and ELITE with capabilities for software push, data logging, histogram and trend mapping
  • Radio packages
  • Rear wiper
  • 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
  • CE Certification (standard in Europe)
  • NOTE: Not all features are available in all regions.

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