Cat® wheel loaders set the standard for productivity, fuel efficiency, operator comfort and low operating costs. The Cat 938 Small Wheel Loader features a high torque C7.1 engine that works in conjunction with an intelligent hydrostatic power train to deliver exceptional fuel efficiency. Meets U.S. EPA Tier 4 Final and EU Stage V emission standards, designed to manage itself so you can concentrate on your work. Extended service intervals to 1000 hours reduce fluid and filter use by up to 45% (compared to previous M Series models) while keeping operating cost low.
Engine Model | Cat C7.1* |
Performance Mode | Automatic |
Note | *Meets U.S EPA Tier 4 Final, EU Stage V off-highway, and Japan 2014 emission standards. |
Note (1) | Advertised power is tested per the specified standard in effect at the time of manufacture |
Note (2) | Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when engine is equipped with alternator, air cleaner, emission components and fan at specified speed. |
Note (3) | No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems. |
Bucket Capacities | 1.9-5.0 m3 (2.5-6.5 yd3) |
Note | *3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped. |
Note | DEF used in Cat systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1:2019. |
Forward and Reverse - Range 1* | 1-13 km/h (0.6-8 mph) |
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). |
Standard Size | 20.5 R25, radial (L-3) |
Other Choices Include | 20.5 R25, radial (L-2), 20.5 R25, radial (L-5), 20.5-25 12PR (L-2), 20.5-25 12PR (L-3), 20.5-25 16PR (L-5), 17.5 R25, radial (L-2), 17.5 R25, radial (L-3), 17.5 R25, radial (L-5), 550/65 R25 radial (L-3), Skidder/Agriculture |
Note (1) | Other tire choices are available. Contact your Cat dealer for details. |
Note (2) | In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities. |
Note (3) | Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model. |
ROPS | ISO 3471:2008 |
FOPS | ISO 3449:2005 LEVEL II |
Front | Fixed; Locking differential (standard) |
Rear | Oscillating ± 11 degrees; Open differential (standard); Limited slip differential (optional) |
Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.9 kg (4.2 lb) of refrigerant which has a CO2 equivalent of 2.717 metric tonnes (2.99 tons). |
Note (1) | European Union Directive 2000/14/EC and UK Noise Regulation 2001 No. 1701. |
Recyclability | 96% |
Note (1) | *Vary with bucket. |
Note (2) | **Vary with tire. |
Note (3) | Dimensions listed are for a machine configured with 2.5 m³ (3.2 yd³) general purpose Fusion™ bucket, bolt-on cutting edge, standard counterweights, additional guarding, 80 kg (176 Ib) operator and 20.5 R25 (L-3) XHA2 tires. |
Note (1) | *Vary with bucket. |
Note (2) | **Vary with tire. |
Note (3) | Dimensions listed are for a machine configured with 2.5 m³ (3.2 yd³) general purpose Fusion™ bucket, bolt-on cutting edge, standard counterweights, additional guarding, 80 kg (176 Ib) operator and 20.5 R25 (L-3) XHA2 tires. |
Rated Gross Power - SAE J1995 | 143 kW |
Rated Gross Power - Rated Engine Speed | 1800 r/min |
Rated Gross Power - SAE J1995 (DIN) | 194 mhp |
Rated Engine Power - ISO 14396 | 140 kW |
Rated Engine Power - ISO 14396 (DIN) | 191 mhp |
Rated Net Power - SAE J1349 at Minimum Fan Speed | 138 kW |
Rated Net Power - ISO 9249 at Minimum Fan Speed | 138 kW |
Rated Net Power - ISO 9249 (DIN) at Minimum Fan Speed | 188 mhp |
Maximum Gross Torque - Engine Speed | 1400 r/min |
Maximum Gross Torque - SAE J1995 | 912 N·m |
Maximum Gross Torque - ISO 14396 | 900 N·m |
Maximum Net Torque - SAE J1349 | 889 N·m |
Maximum Net Torque - ISO 9249 | 892 N·m |
Displacement | 7.01 l |
Bore | 105 mm |
Stroke | 135 mm |
Operating Weight | 16115 kg |
Operating Weight - High Lift | 16425 kg |
Steering Cylinder - Bore Diameter | 80 mm |
Steering Cylinder - Rod Diameter | 50 mm |
Steering Cylinder - Stroke | 399 mm |
Maximum Flow - Steering Pump | 130 l/min |
Maximum Working Pressure - Steering Pump | 24130 kPa |
Steering Cycle Times (Full Left to Full Right) - Minimum RPM: Pump Flow Limited | 3.1 s |
Steering Cycle Times (Full Left to Full Right) - Maximum RPM: 90 RPM Steering Wheel Speed | 2.3 s |
Maximum Flow - Implement Pump | 190 l/min |
Maximum Flow - Implement Pump - 3rd Function Maximum Flow* | 190 l/min |
Maximum Flow - Implement Pump - 4th Function Maximum Flow* | 160 l/min |
Maximum Working Pressure - Implement Pump | 28000 kPa |
Relief Pressure - Tilt Cylinder | 30000 kPa |
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure | 28000 kPa |
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure | 30000 kPa |
Lift Cylinder: Standard Lift Linkage - Bore Diameter | 120 mm |
Lift Cylinder: Standard Lift Linkage - Rod Diameter | 65 mm |
Lift Cylinder: Standard Lift Linkage - Stroke | 789 mm |
Tilt Cylinder: Standard Lift Linkage - Bore Diameter | 150 mm |
Tilt Cylinder: Standard Lift Linkage - Rod Diameter | 90 mm |
Tilt Cylinder: Standard Lift Linkage - Stroke | 555 mm |
Hydraulic Cycle Time - Raise, Ground Level to Maximum Lift | 5.5 s |
Hydraulic Cycle Time - Dump (at Maximum Lift Height) | 1.5 s |
Hydraulic Cycle Time - Float Down, Maximum Lift to Ground Level | 2.7 s |
Hydraulic Cycle Time - Total Cycle Time | 9.7 s |
Fuel Tank | 195 l |
Cooling System | 30 l |
Engine Crankcase | 20 l |
Transmission - Gear Box | 8.5 l |
Front Axles | 35 l |
Rear Axles | 35 l |
Hydraulic System - Including Tank | 170 l |
Hydraulic Tank | 90 l |
Diesel Exhaust Fluid (DEF) Tank | 19 l |
Forward and Reverse - Range 2 | 13 km/h |
Forward and Reverse - Range 3 | 27 km/h |
Forward and Reverse - Range 4 | 40 km/h |
Operator Sound Pressure (ISO 6396:2008) | 68 dB(A) |
Average Exterior Sound Pressure (ISO 6395:2008) | 101 dB(A) |
Height - Ground to Cab** | 3340 mm |
Height - Ground to Beacon** | 3707 mm |
Height - Ground to Axle Center** | 685 mm |
Height - Ground Clearance** | 386 mm |
Length - Overall* | 7656 mm |
Length - Rear Axle to Bumper | 1968 mm |
Length - Hitch to Front Axle | 1525 mm |
Length - Wheel Base | 3050 mm |
Clearance - Bucket at 45°* | 2834 mm |
Clearance - Load over Height** | 3354 mm |
Clearance - Level Bucket** | 3641 mm |
Height - Bucket Pin** | 3969 mm |
Height - Overall** | 5273 mm |
Reach - Bucket at 45°* | 1146 mm |
Carry Height - Bucket Pin | 394 mm |
Dig Depth** | 101 mm |
Width - Bucket | 2750 mm |
Width - Tread Center | 2083 mm |
Turning Radius - Over Bucket | 6120 mm |
Width - Over Tires | 2693 mm |
Turning Radius - Outside of Tires | 5546 mm |
Turning Radius - Inside of Tires | 2843 mm |
Rack Angle at Full Lift | 54 ° |
Dump Angle at Full Lift | 49 ° |
Rack Angle at Carry | 43 ° |
Departure Angle | 33 ° |
Articulation Angle | 40 ° |
Operating Weight | 16115 kg |
Height - Ground to Cab** | 3340 mm |
Height - Ground to Beacon** | 3707 mm |
Height - Ground to Axle Center** | 685 mm |
Height - Ground Clearance** | 386 mm |
Length - Overall* | 8397 mm |
Length - Rear Axle to Bumper | 1968 mm |
Length - Hitch to Front Axle | 1525 mm |
Length - Wheel Base | 3050 mm |
Clearance - Bucket at 45°* | 3415 mm |
Clearance - Load over Height** | 3561 mm |
Clearance - Level Bucket** | 4222 mm |
Height - Bucket Pin** | 4550 mm |
Height - Overall** | 5853 mm |
Reach - Bucket at 45°* | 1413 mm |
Carry Height - Bucket Pin | 612 mm |
Dig Depth** | 135 mm |
Width - Bucket | 2750 mm |
Width - Tread Center | 2083 mm |
Turning Radius - Over Bucket | 6483 mm |
Width - Over Tires | 2693 mm |
Turning Radius - Outside of Tires | 5546 mm |
Turning Radius - Inside of Tires | 2843 mm |
Rack Angle at Full Lift | 53 ° |
Dump Angle at Full Lift | 47 ° |
Rack Angle at Carry | 48 ° |
Departure Angle | 33 ° |
Articulation Angle | 40 ° |
Operating Weight | 16425 kg |