Category : Wheel Loaders ➔ Manufacturer : Caterpillar ➔ Model : 938K ➔
The Caterpillar 938K is a wheel loader designed for material handling, stockpiling, truck loading, and general construction applications. It is part of Caterpillar's K Series and is commonly used in aggregate yards, industrial sites, waste handling, and roadwork support. The 938K features a hydrostatic transmission, articulated steering, and a front-end loader configuration for efficient loading and maneuverability. It is typically equipped with a Caterpillar diesel engine, operator cab, and compatibility with a range of buckets and work tools. The 938K is used in applications requiring lifting, carrying, and loading bulk materials across varied jobsite conditions.
Bucket
Caterpillar 938K Wheel Loader Bucket specifications
Bucket Capacities
6.50 cu yd (4.97 cu m)
Dump Clearance at Max Raise
9.25 ft (2.82 m)
Cab
Caterpillar 938K Wheel Loader Cab specifications
FOPS
SAE J/ISO 3449 APR98 Level II ISO 3449 1992 Level II
ROPS
SAE J1040 MAY94 ISO 3471-1994
Dimensions
Caterpillar 938K Wheel Loader Dimensions specifications
Bucket Pin Height - Maximum Lift
13.00 ft (3.96 m)
Carry Height
1.50 ft (0.46 m)
Centerline of Front Axle to Hitch
5.00 ft (1.52 m)
Digging Depth
3.90 in (9.91 cm)
Dump Angle at Maximum Lift
49 degrees
Dump Clearance at Maximum Lift - 45 degrees
9.30 ft (2.83 m)
Height - Center of Axle
2.20 ft (0.67 m)
Height - Top of ROPS/FOPS
10.90 ft (3.32 m)
Length - Rear Axle to Bumper
6.40 ft (1.95 m)
Overall Height - Bucket Raised
17.30 ft (5.27 m)
Overall Length
25.10 ft (7.65 m)
Rack Back Angle - Carry
45 degrees
Rack Back Angle - Maximum Lift
54 degrees
Reach at Maximum Lift and 45 degrees Dump
3.80 ft (1.16 m)
Wheel Base
10.00 ft (3.05 m)
Wheel Base Length
10.00 ft (3.05 m)
Engine
Caterpillar 938K Wheel Loader Engine specifications
Bore
4.00 in (10.16 cm)
Displacement
402.00 cu in (6,587.61 cu cm)
EEC 80/1269
170.00 hp (126.77 kw)
Engine Model
C7.1 ACERT
Gross Power
175.00 hp (130.50 kw)
Net Power
169.00 hp (126.03 kw)
Net Torque
591.00 lbs ft (801.28 nm)
Number of Cylinders
6
Rated Net Power
169.00 hp (126.03 kw)
Stroke
5.00 in (12.70 cm)
Torque Measured @
1600 rpm
Hydraulic System
Caterpillar 938K Wheel Loader Hydraulic System specifications
Dump Time
1.5 seconds
Lower Time
2.7 seconds
Pump Flow Capacity
50.00 gpm (189.25 lpm)
Raise Time
6.2 seconds
Relief Valve Setting
4061 psi
Loader Hydraulic System
Caterpillar 938K Wheel Loader Loader Hydraulic System specifications
Bore (1)
4.70 in (11.94 cm)
Bore (2)
5.90 in (14.99 cm)
Dump
1.5 seconds
Hydraulic Cycle Time
9.7 seconds
Lower, Empty, Float Down
2.7 seconds
Pump Flow - Implement Pump
50.00 gpm (189.25 lpm)
Raise
5.5 seconds
Stroke (1)
31.10 in (78.99 cm)
Stroke (2)
21.90 in (55.63 cm)
Total
9.7 seconds
Operating Specifications
Caterpillar 938K Wheel Loader Operating Specifications specifications
Articulation Angle
40 degrees
Cooling System Fluid Capacity
8.50 gal (32.17 l)
Dump Clearance at Full Lift and 45 degrees Dump Angle
9.30 ft (2.83 m)
Front Axle/Diff Fluid Capacity
9.20 gal (34.82 l)
Fuel Capacity
51.50 gal (194.93 l)
Hydraulic System Fluid Capacity
23.80 gal (90.08 l)
Operating Weight
34,129.00 lbs (15,480.67 kg)
Rated Bucket Capacity
3.30-6.50 cu yd (2.52-4.97 cu m)
Reach - Full Lift and 45 degrees Dump
3.80 ft (1.16 m)
Rear Axle/Diff Fluid Capacity
9.20 gal (34.82 l)
Static Tipping Load - Full Turn
20,997.00 lbs (9,524.09 kg)
Tire Size
20.5
Transmission Fluid Capacity
2.90 gal (10.98 l)
Service Refill Capacities
Caterpillar 938K Wheel Loader Service Refill Capacities specifications
Cooling System
7.90 gal (29.90 l)
Crankcase
5.30 gal (20.06 l)
Front
9.20 gal (34.82 l)
Fuel Tank
51.50 gal (194.93 l)
Hydraulic Tank
23.80 gal (90.08 l)
Rear
9.20 gal (34.82 l)
Transmission
2.90 gal (10.98 l)
Steering System
Caterpillar 938K Wheel Loader Steering System specifications
Maximum Working Pressure
3500 psi
Steering Angle - Each Direction
40 degrees
Steering Articulation
40 degrees
Steering Cylinder, Two, Bore
3.10 in (7.87 cm)
Tires
Caterpillar 938K Wheel Loader Tires specifications
Size
20.5 R25 radial (L-3)
Transmission
Caterpillar 938K Wheel Loader Transmission specifications
2 Forward
8.00 mph (12.87 kph)
3 Forward
17.00 mph (27.36 kph)
4 Forward
25.00 mph (40.23 kph)
Forward - 1
8.00 mph (12.87 kph)
Max Speed - Forward
25.00 mph (40.23 kph)
Max Speed - Reverse
25.00 mph (40.23 kph)
Number of Forward Gears
4
Number of Reverse Gears
4
Reverse - 1
8.00 mph (12.87 kph)
Weights
Caterpillar 938K Wheel Loader Weights specifications
Operating Weight
35,104.00 lbs (15,922.93 kg)
