/  Equipment  /  Wheel Loaders  /  Small Wheel Loaders

938K

938K - 2015, Tier 3, Stage IIIA

Overview

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.

Specifications

Units: 
Maximum Gross Power
Operating Weight
Bucket Capacities 2.5-5.0 m³ (3.2-6.5 yd³)
See more

Benefits & Features

Efficiently Powerful

Experience hybrid like fuel efficiency with an intelligent hydrostatic power train and industry leading fuel savings through a lower maximum engine speed of just 1,600 rpm in Standard Mode. Power when you need it with Caterpillar’s exclusive Power‑by-Range technology that increases power in Range 4 for improved speed on grade. For your toughest and most demanding applications a new Performance Mode will allow you to boost the power and hydraulic speed in all Ranges to get the job done even quicker. Meets U.S. EPA Tier 3/EU Stage IIIA/Brazil MAR-1 equivalent emission standards with a Cat® C7.1 engine that is designed to manage itself so you can concentrate on your work.

Work Made Easy

Move more with Caterpillar's patented quick loading Performance Series buckets and optimized Z-bar linkage 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 safely and 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. The K Series Small Wheel Loader simply does what you ask it to do.

Enjoy All Day Comfort

Have a seat in the updated K Series Small Wheel Loader and enjoy excellent 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's exclusive hydraulic cylinder damping and smooth predictable controls make this the most comfortable seat on your job site.

  October 9, 2024

Specifications

Units: 
Engine
Maximum Gross Power
Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4)
Engine Model Cat® C7.1
Maximum Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3*)
Note (2) *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.
Maximum Gross Power - 1,800 rpm - ISO 14396 (metric) (Performance Power Mode: Range 1-4) 190 hp
Net Power - 1,800 rpm - SAE J1349 (Performance Power Mode: Range 1-4)
Net Power - 1,600 rpm - ISO 9249 (metric) (Standard Power Mode: Range 1-3*) 173 hp
Net Power - 1,800 rpm - ISO 9249 (metric) (Performance Power Mode: Range 1-4) 188 hp
Net Power - 1,600 rpm - SAE J1349 (Standard Power Mode: Range 1-3*)
Maximum Gross Power - 1,600 rpm - ISO 14396 (metric) (Standard Power Mode: Range 1-3*) 175 hp
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)
Displacement (Standard Power Mode: Speed Range 1-3*)
Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*)
Emissions 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)
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*)
Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4)
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)
Displacement (Performance Power Mode: Speed Range 1-4)
Buckets
Bucket Capacities 2.5-5.0 m³ (3.2-6.5 yd³)
Bucket Capacities - General Purpose 2.5-3.2 m³ (3.2-4.2 yd³)
Bucket Capacities - Light Material 3.1-5.0 m³ (4.0-6.5 yd³)
Weights
Operating Weight
Cab
ROPS SAE J1040 MAY94, ISO 3471-1994
FOPS SAE J/ISO 3449 APR98, Level II, ISO 3449 1992 Level II
Note (1) Cab and Rollover Protective Structures (ROPS) are standard.
Note (2) A semi-cab option is available.
Service Refill Capacities
Axles - Front
Engine Crankcase
Fuel Tank
Hydraulic Tank
Hydraulic System - Including Tank
Transmission - Gear Box
Axles - Rear
Cooling System
Steering
Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left
Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed
Maximum Working Pressure - Steering Pump
Maximum Flow - Steering Pump
Maximum Steering Torque - 40° (Full Turn)
Maximum Steering Torque - 0° (Straight Machine)
Steering Articulation Angle - Each Direction 40°
Axles
Front Fixed; Open differential (standard); Locking differential (optional)
Rear Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional in some regions)
Loader Hydraulic System
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level
Maximum Working Pressure - Implement Pump
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time
Maximum Flow - Implement Pump
Relief Pressure - Tilt Cylinder - 4th Function Maximum Working Pressure
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Dump, at Maximum Lift Height
Maximum Flow - Implement Pump - 4th Function Maximum Flow*
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Dump, at Maximum Lift Height
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time
Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Raise, Ground Level to Maximum Lift
Relief Pressure - Tilt Cylinder
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Float Down, Maximum Lift to Ground Level
Note *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
Maximum Flow - Implement Pump - 3rd Function Maximum Flow*
Transmission
Forward and Reverse - Range 2
Forward and Reverse - Range 4
Forward and Reverse - Range 3
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).
Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph)
Tires
Note (1) Other tire choices are available. Contact your Cat dealer for details.
Other Choices Vary by Region (1) 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.
Note (2) 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)
Sound
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.”
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.
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.

Benefits & Features

Efficiently Powerful

Experience hybrid like fuel efficiency with an intelligent hydrostatic power train and industry leading fuel savings through a lower maximum engine speed of just 1,600 rpm in Standard Mode. Power when you need it with Caterpillar’s exclusive Power‑by-Range technology that increases power in Range 4 for improved speed on grade. For your toughest and most demanding applications a new Performance Mode will allow you to boost the power and hydraulic speed in all Ranges to get the job done even quicker. Meets U.S. EPA Tier 3/EU Stage IIIA/Brazil MAR-1 equivalent emission standards with a Cat® C7.1 engine that is designed to manage itself so you can concentrate on your work.

Work Made Easy

Move more with Caterpillar's patented quick loading Performance Series buckets and optimized Z-bar linkage 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 safely and 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. The K Series Small Wheel Loader simply does what you ask it to do.

Enjoy All Day Comfort

Have a seat in the updated K Series Small Wheel Loader and enjoy excellent 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's exclusive hydraulic cylinder damping and smooth predictable controls make this the most comfortable seat on your job site.

Customize Your Experience

Meet your application requirements and individual preferences with Caterpillar's 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, or default mode which blends the best of Hystat and Torque Converter characteristics. Fine tune machine performance with adjustments at your fingertips through the soft touch buttons and optional secondary display. Quickly set hydraulic response along with linkage kick-out positions, maximum wheel torque, and peak ground speed to efficiently perform a multitude of tasks.

Standard Equipment

  • POWER TRAIN
    • Auto idle shut down feature
    • Cat C7.1 engine<ul><li>Power modes (Standard and Performance)</li><li>Power by range (High Power in Range 4)</li><li>Turbocharged and aftercooled</li><li>Filtered crankcase breather</li></ul>
    • 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<ul><li>Operator modes (Default, TC, Hystat, and Ice)</li><li>Directional Shift Aggressiveness (fast, medium, slow)</li><li>Rimpull control, adjust wheel torque</li><li>Creeper control, adjust ground speed</li></ul>
    • 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

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<ul><li>Camera, roof mounted, front view with separate display*</li><li>Rear window defroster (standard in Europe)</li><li>Secondary display to adjust settings (standard in Europe)</li><li>Sunscreen, front and rear</li><li>Wet arm wiper/washer, front and rear</li></ul>*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<ul><li>Deluxe seat – fully adjustable fabric air suspension seat with mid backrest and mechanical lumbar support</li><li>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.</li></ul>
    • Steering<ul><li>Dual mode and secondary</li></ul>
    • CE Certification (standard in Europe)
    • NOTE: Not all features are available in all regions.

View 360