938K Wheel Loader

The Cat® 938K Wheel Loader sets a new standard for productivity, fuel efficiency and comfort. Extremely low sound levels, large spacious cab and intuitive controls keep you working comfortably all day long. The new optimized Z-bar loader linkage delivers the performance and breakout forces of a traditional Z-bar linkage with the parallelism and load handling capability of a tool carrier. Experience the new industry benchmark.

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Product Specs

Engine

Rated Net Power: 169 mm H2O
Model: Cat® C6.6 ACERT™
Model: Cat® C6.6 ACERT™
SAE J1349: 169.0 hp
SAE J1349: 169 mm H2O
ISO 9249 (1997): 170.0 hp
ISO 9249 (1997): 170 mm H2O
EEC 80/1269: 170.0 hp
EEC 80/1269: 170 mm H2O
Bore: 4.0 in
Bore: 4 in
Stroke: 5 in
Stroke: 5.0 in
Displacement: 402 in³
Displacement: 402.0 in3
Net Torque: 591 ft-lb
Net Torque: 591.0 ft-lb

Weights

Operating Weight: 35104 lb
Operating Weight: 35104.0 lb

Buckets

Bucket Capacities: 2.5 m3 - 5.0 m3 3.2 yd3 - 6.5 yd3
Bucket Capacities: 2.5 m3 - 5.0 m3 3.2 yd3 - 6.5 yd3

Dimensions

Wheel Base: 10 ft
Wheelbase: 10.0 ft
Height - Top of ROPS/FOPS: 10.9 ft
Height - Center of Axle: 2.16 ft
Ground Clearance: 1.25 ft
Ground Clearance: 1.25 ft
Overall Length: 25.1 ft
Overall Length: 25.1 ft
Length - Rear Axle to Bumper: 6.4 ft
Length - Rear Axle to Bumper: 6.4 ft
Centerline of Front Axle to Hitch: 5 ft
Wheel Base Length: 10 ft
Dump Clearance at Maximum Lift - 45°: 9.25 ft
Bucket Pin Height - Maximum Lift: 13 ft
Bucket Pin Height at Max Lift: 13.0 ft
Overall Height - Bucket Raised: 17.25 ft
Overall Height - Bucket Raised: 17.25 ft
Reach at Maximum Lift and 45° Dump: 3.75 ft
Rack Back Angle - Maximum Lift: 54 °
Dump Angle at Maximum Lift: 49 °
Dump Angle at Max Lift: 49.0 Degrees
Rack Back Angle - Carry: 45 °
Carry Height: 1.5 ft
Digging Depth: 3.9 in
Digging Depth: 3.9 in

Operating Specifications

Static Tipping Load - Full Turn: 20997 lb
Reach - Full Lift and 45° Dump: 3.75 ft
Reach - full lift/45 degree dump angle: 3.75 ft
Dump Clearance at Full Lift and 45° Dump Angle: 9.25 ft
Articulation Angle: 40 °
Articulation Angle: 40.0 Degrees

Tires

Size: 20.5 R25, radial (L-3)
Size: 20.5 R25, radial (L-3)

Steering

Steering Articulation: 40 °
Steering Angle - Each Direction: 40 °
Steering Cylinder, Two, Bore: 3.1 in
Maximum Working Pressure: 3500 psi

Loader Hydraulic System

Hydraulic Cycle Time: 9.7 s
Pump Flow - Implement Pump: 50 gal/min
Maximum Working Pressure: 4061 psi
Hydraulic Cycle Time: 9.7 sec
Raise: 5.5 s
Dump: 1.5 s
Lower, Empty, Float Down: 2.7 s
Total: 9.7 s
Bore (1): 4.7 in
Bore (2): 5.9 in
Stroke (1): 31.1 in
Stroke (2): 21.9 in

Transmission

Standard Transmission Maximum Travel Speeds: 25 mile/h
Forward - 1: 8 mile/h
Forward 1: 8.0 mph
2: 8 mile/h
2: 8.0 mph
3: 17 mile/h
3: 17.0 mph
4: 25 mile/h
4: 25.0 mph
Reverse - 1: 8 mile/h
Reverse 1: 8.0 mph

Service Refill Capacities

Fuel Tank: 51.5 gal (US)
Fuel tank: 51.5 gal
Cooling System: 7.9 gal (US)
Cooling system: 7.9 gal
Crankcase: 5.3 gal (US)
Crankcase: 5.3 gal
Transmission: 2.9 gal (US)
Transmission: 2.9 gal
Front: 9.2 gal (US)
Rear: 9.2 gal (US)
Hydraulic System - Including Tank: 44.9 gal (US)
Hydraulic system (including tank): 44.9 gal
Hydraulic Tank: 23.8 gal (US)
Hydraulic tank: 23.8 gal

Cab

ROPS: SAE J1040 MAY94, ISO 3471-1994
ROPS: SAE J1040 MAY94, ISO 3471-1994
FOPS: SAE J/ISO 3449 APR98 Level II, ISO 3449 1992 Level II
FOPS: SAE J/ISO 3449 APR98 Level II, ISO 3449 1992 Level II

Standard Equipment

Power Train
- Axle seal guards
- Auto idle shut down feature
- Brake/decelerator pedal
- Cat C6.6 ACERT^™ engine
- Coolant protection to -34° C (-29° F)
- Differential lock in front axle
- Differential rear open
- Dry type air cleaner
- Enclosed wet disc full hydraulic brakes
- Fuel priming pump, automatic
- Fuel water separator
- Hydraulically driven demand cooling fan
- Hydrostatic transmission with electronic speed range control
- Lubed for life driveshafts
- Parking brake, electric
- Single plane cooling system with remote coolant reservoir
- SOS port, engine, coolant and transmission oil
- Thermal starting aid (glow plugs)
- Throttle lock
- Transmission directional control on implement joystick
- Transmission sight gauge
- Transmission oil cooler
Hydraulics
- Heavy duty hydraulic cooler
- Hydraulic diagnostic connectors and SOS
- Hydraulic sight gauge, visible
- Load sensing hydraulics and steering
- Seat-mounted hydraulic controls with F/N/R
Electrical
- Alternator, 115-amp, heavy duty
- 12V power supply in cab (2)
- Batteries, 1,000 CCA (2)
- 24 volt system
- Back-up alarm
- Battery disconnect switch
- Beacon ready
- Diagnostic connector
- Directional signals front and rear
- Emergency shutdown switch
- Halogen work lights front and rear
- Heavy duty gear reduction starter
- LED rear stop tail turn lights
- Remote jump start post
- Resettable main and critical function breakers
- Roading lights front and rear
Operator Environment
- 75 mm (3 in) retractable seatbelt
- Automatic temperature control
- Cab, enclosed ROPS/FOPS pressurized and sound suppressed
- Cup holder
- External heated mirrors
- Ground level cab door release
- Gauges: Digital direction indicator Digital hour meter and odometer Digital speedometer Engine coolant temperature gauge Fuel level indicator Hydraulic oil temperature gauge Tachometer
- Hydraulic control lockout
- Interior cab lighting, door and dome
- Interior rearview mirrors (2)
- Lunch box storage
- Operator warning system indicators
- Radio ready speakers
- Rear window defrost, electric
- Removable floormat
- Seat-mounted electronic implement controls, adjustable
- Sliding glass on the side windows
- Steering column mounted multi function control - lights, wipers, turn signal
- Suspension seat, fabric
- Tilt and telescopic steering wheel
- Tinted front glass
- Wet arm wiper/washer, 2-speed and intermittent, front
- Wet arm wiper/washer, rear
Other Standard Equipment
- Automatic bucket/fork positioner, adjustable in-cab
- Automatic lift and bucket kickouts, adjustable in-cab
- Fenders
- Large-access enclosure doors with adjustable close/open force
- Parallel lift loader linkage with sealed pins
- Recovery hitch with pin
- Remote mounted lubrication points
- Toolbox, lockable
- Vandalism protection - lockable compartments
Eu Standard Equipment
- Deluxe cab
- Secondary display
- Rearview camera

Attachments

Cab, Deluxe Includes (standard In Europe, Optional In North America):
- Automatic blower control
- Electrically adjustable external heated mirrors (2)
- LED interior lighting
- Secondary display
- Visor
Cold Start Package:
- Ether starting aid
- Block heater
- Additional batteries (2)
Guards
- Power train, lower
- Power train, side
- Crankcase
- Driveshaft
- Windshield
Radio Packages:
- Radio ready with Bluetooth interface, microphone and auxiliary inputs for MP3 players
- Radio, AM/FM with CD player
- Radio, AM/FM with CD player deluxe, Bluetooth interface, microphone and auxiliary inputs for MP3 players
Seats:
- Deluxe seat - fully adjustable fabric air suspension seat with high seat backrest
- Premium seat - fully adjustable heated fabric air suspension seat with high seat backrest and lumbar support
Steering:
- Dual mode
- Secondary
Tires:
- Bias ply, 20.5-25
- Radial, 17.5 R25, 20.5 R25, 550/65 R25, 650/65 R25
- Flexport
- Skidder/Agriculture

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