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938K Wheel Loader
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 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.
| Engine | |
|---|---|
| Engine Model | Cat® C7.1 |
| Rated Net Power - 1,600 rpm - ISO 9249 (DIN) (Standard Power Mode: Speed Range 1-3*) | 127 kW (173 HP) |
| Rated Net Power | 136 kW (182 HP) |
| Rated Net Power - 1,600 rpm - SAE J1349 (Standard Power Mode: Speed Range 1-3*) | 126 kW (169 HP) |
| Maximum Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3*) | 129 kW (173 HP) |
| Maximum Gross Power - 1,600 rpm - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*) | 129 kW (175 HP) |
| Buckets | |
|---|---|
| Bucket Capacities | 2.5-3.2 m3 (3.2-4.2 yd3) |
| Weights | |
|---|---|
| Operating Weight | 15485 kg (34129 lb) |
| Engine | |
|---|---|
| Maximum Gross Power | 140 kW (190 HP) |
| Cab | |
|---|---|
| ROPS | SAE J1040 MAY94, ISO 3471-1994 |
| FOPS | SAE J/ISO 3449 APR98, Level II, ISO 3449 1992 Level II |
| Service Refill Capacities | |
|---|---|
| Axles - Front | 35 l (9.2 gal (US)) |
| Engine | |
|---|---|
| Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4) | 140 kW (188 HP) |
| Steering | |
|---|---|
| Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left | 3.1 turns (3.1 turns) |
| Loader Hydraulic System | |
|---|---|
| Maximum Flow - Implement Pump - 3rd Function* | 190 l/min (50 gal/min) |
| Engine | |
|---|---|
| Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) | 896 N·m (660 lb/ft) |
| Axles | |
|---|---|
| Front | Fixed; Open differential (standard); Locking differential (optional) |
| Loader Hydraulic System | |
|---|---|
| Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level | 2.7 s (2.7 s) |
| Engine | |
|---|---|
| Displacement (Standard Power Mode: Speed Range 1-3*) | 7.01 l (427 inu00b3) |
| Cab | |
|---|---|
| Note (1) | Cab and Rollover Protective Structures (ROPS) are standard. |
| Service Refill Capacities | |
|---|---|
| Engine Crankcase | 19.5 l (5.2 gal (US)) |
| Steering | |
|---|---|
| Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed | 2.2 s (2.2 s) |
| Engine | |
|---|---|
| Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*) | 870 N·m (641 lb/ft) |
| Steering | |
|---|---|
| Maximum Working Pressure - Steering Pump | 24130 kPa (3500 psi) |
| Maximum Flow - Steering Pump | 130 l/min (34 gal/min) |
| Loader Hydraulic System | |
|---|---|
| Maximum Working Pressure - Implement Pump | 28000 kPa (4061 psi) |
| Engine | |
|---|---|
| Emissions | Engine meets Tier 3/Stage IIIA equivalent emission standards. |
| Loader Hydraulic System | |
|---|---|
| Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time | 10.6 s (10.6 s) |
| Transmission | |
|---|---|
| Forward and Reverse - Range 2 | 13 km/h (8 mile/h) |
| Loader Hydraulic System | |
|---|---|
| Maximum Flow - Implement Pump | 190 l/min (50 gal/min) |
| Engine | |
|---|---|
| Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) | 912 N·m (672 lb/ft) |
| Loader Hydraulic System | |
|---|---|
| Relief Pressure - Tilt Cylinder - 4th Function Maximum Working Pressure | 28000 kPa (4061 psi) |
| Tires | |
|---|---|
| Note (1) | Other tire choices are available. Contact your Cat dealer for details. |
| Steering | |
|---|---|
| Maximum Steering Torque - 40u00b0 (Full Turn) | 42570 N·m (31398 lb/ft) |
| Loader Hydraulic System | |
|---|---|
| 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* | 150 l/min (40 gal/min) |
| Transmission | |
|---|---|
| Forward and Reverse - Range 4 | 40 km/h (25 mile/h) |
| Service Refill Capacities | |
|---|---|
| Fuel Tank | 195 l (51.5 gal (US)) |
| Tires | |
|---|---|
| Other Choices Vary by Region (1) | 20.5 R25, radial (L-2); 20.5-25 16PR (L-5); 23.5 R25, radial (L-3); 20.5 R25, radial (L-5); 650/65 R25 radial (L-3) |
| Cab | |
|---|---|
| Note (2) | A semi-cab option is available. |
| Engine | |
|---|---|
| Rated Net Power - 1,800 rpm - ISO 9249 (DIN) (Performance Power Mode: Speed Range 1-4) | 138 kW (188 HP) |
| Service Refill Capacities | |
|---|---|
| Hydraulic Tank | 90 l (23.8 gal (US)) |
| Tires | |
|---|---|
| Note (3) | Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model. |
| Engine | |
|---|---|
| Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) | 860 N·m (634 lb/ft) |
| Axles | |
|---|---|
| Rear | Oscillating u00b111 degrees; Open differential (standard); Limited slip differential (optional in some regions) |
| Engine | |
|---|---|
| Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4) | 886 N·m (653 lb/ft) |
| Loader Hydraulic System | |
|---|---|
| Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Dump, at Maximum Lift Height | 1.5 s (1.5 s) |
| Engine | |
|---|---|
| Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) | 876 N·m (646 lb/ft) |
| Transmission | |
|---|---|
| Forward and Reverse - Range 3 | 27 km/h (17 mile/h) |
| Service Refill Capacities | |
|---|---|
| Hydraulic System - Including Tank | 170 l (44.9 gal (US)) |
| Tires | |
|---|---|
| Other Choices Vary by Region (2) | 20.5-25 12PR (L-2); Skidder/Agriculture; 20.5-25 12PR (L-3); Flexport™ Gen II |
| Sound | |
|---|---|
| Note (3) | The declared exterior sound power level is 104 dB(A) when the value is measured according to u201cISO 6395:2008.u201d |
| Buckets | |
|---|---|
| Bucket Capacities - General Purpose | 2.5-3.2 m3 (3.2-4.2 yd3) |
| Sound | |
|---|---|
| Note (1) | Declared dynamic operator sound pressure level is 72 dB(A) when u201cISO 6396:2008u201d is used to measure value for an enclosed cab. |
| Service Refill Capacities | |
|---|---|
| Transmission - Gear Box | 11 l (2.9 gal (US)) |
| Loader Hydraulic System | |
|---|---|
| Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time | 9.7 s (9.7 s) |
| Service Refill Capacities | |
|---|---|
| Axles - Rear | 35 l (9.2 gal (US)) |
| Cooling System | 32 l (8.5 gal (US)) |
| Loader Hydraulic System | |
|---|---|
| Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure | 28000 kPa (4061 psi) |
| Engine | |
|---|---|
| Maximum Gross Power - 1,800 rpm - ISO 14396 (DIN) (Performance Power Mode: Range 1-4) | 140 kW (190 HP) |
| Sound | |
|---|---|
| Note (2) | The measurement was conducted at 70% of the maximum engine cooling fan speed, with the cab doors and cab windows closed. |
| Loader Hydraulic System | |
|---|---|
| Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Raise, Ground Level to Maximum Lift | 6.2 s (6.2 s) |
| Engine | |
|---|---|
| Displacement (Performance Power Mode: Speed Range 1-4) | 7.01 l (427 inu00b3) |
| Steering | |
|---|---|
| Maximum Steering Torque - 0u00b0 (Straight Machine) | 57630 N·m (42506 lb/ft) |
| Tires | |
|---|---|
| Note (2) | In certain applications, the loader's productive capabilities may exceed the tire's tonnes-km/h (ton-mph) capabilities. |
| Loader Hydraulic System | |
|---|---|
| Relief Pressure - Tilt Cylinder | 30000 kPa (4351 psi) |
| Engine | |
|---|---|
| Rated Net Power - 1,800 rpm - SAE J1349 (Performance Power Mode: Speed Range 1-4) | 136 kW (182 HP) |
| Loader Hydraulic System | |
|---|---|
| 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. |
| Buckets | |
|---|---|
| Bucket Capacities - Light Material | 3.1-5.0 m3 (4.0-6.5 yd3) |
| Transmission | |
|---|---|
| Note | *Creeper control allows max. speed range adjustability from 1 km/h (0.6 mph) to 13 km/h (8 mph) in Range 1 through the sec. display. |
| Tires | |
|---|---|
| Standard Size | 20.5 R25, radial (L-3) |
| Transmission | |
|---|---|
| Notes | Factory default is 7 km/h (4.4 mph). |
| Loader Hydraulic System | |
|---|---|
| Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Raise, Ground Level to Maximum Lift | 5.5 s (5.5 s) |
| Steering | |
|---|---|
| Steering Articulation Angle - Each Direction | 40u00b0 |
| Transmission | |
|---|---|
| Forward and Reverse - Range 1* | 1-13 km/h (0.6-8 mph) |
| Engine | |
|---|---|
| Note | *Range 4 power is boosted to be the same as Performance Mode. |
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 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
Optional Equipment
- Cab, deluxe
- Electrically adjustable external heated mirrors (2)
- Secondary display to enable features and adjust parameters
- Sunscreen, front and rear
- 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