938M Wheel Loader | Cat

Engine

Maximum Gross Power	188 HP 140 kW
*Displacement (Standard Power Mode: Speed Range 1-3)**	427 in³ 7.01 l
*Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3)**	1600 r/min 1600 r/min
Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)	183 HP 137 kW
*Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3)**	642 ft·lbf 870 N·m
*Maximum Gross Power - 1,600 rpm - ISO 14396 (DIN) (Standard Power Mode: Range 1-3)**	176 mhp 176 mhp
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)	649 ft·lbf 880 N·m
Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4)	188 HP 140 kW
*Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3)**	172 mhp 172 mhp
*Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3)**	627 ft·lbf 850 N·m
Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4)	186 mhp 186 mhp
Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)	1800 r/min 1800 r/min
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)	664 ft·lbf 900 N·m
Displacement (Performance Power Mode: Speed Range 1-4)	427 in³ 7.01 l
Maximum Gross Power - 1,800 rpm - ISO 14396 (DIN) (Performance Power Mode: Range 1-4)	190 mhp 190 mhp
Note (1)	Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed. Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed.
Engine Model	Cat C7.1 ACERT Cat C7.1 ACERT
*Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3)**	170 HP 127 kW
*Maximum Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3)**	173 HP 129 kW
Note (2)	Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology. Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
Note (3)	The Cat C7.1 ACERT engine meets Tier 4 Final/Stage V off-highway emission standards. The Cat C7.1 ACERT engine meets Tier 4 Final/Stage V off-highway emission standards.
*Rated Net Power - 1,600 rpm - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3)**	170 HP 127 kW
*Maximum Net Torque - ISO 9249:2007 (Standard Power Mode: Range 1-3)**	628 ft·lbf 852 N·m
Rated Net Power - 1,800 rpm - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4)	184 HP 137 kW
Maximum Net Torque - ISO 9249:2007 (Performance Power Mode: Range 1-4)	650 ft·lbf 882 N·m

Buckets

Bucket Capacities	2.5-5 m3 (3.2-6.5 yd3) 2.5-5 m3 (3.2-6.5 yd3)
Bucket Capacities - Light Material	3.1-5 m³ (4.0-6.5 yd³) 3.1-5 m³ (4.0-6.5 yd³)
Bucket Capacities - General Purpose	2.5-3.2 m³ (3.2-4.2 yd³) 2.5-3.2 m³ (3.2-4.2 yd³)

Weights

Operating Weight

35778 lb 16229 kg

Cab

ROPS	ISO 3471:2008 ISO 3471:2008
FOPS	ISO 3449:2008 Level II ISO 3449:2008 Level II
Note (3)	The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds. The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds.
Note (1)	Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe. Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
Note (2)	The declared dynamic operator sound pressure levels per ISO 6396:2008, when properly installed and maintained, are: – Standard cab: 68 ±3 dB(A) – Deluxe cab: 66 ±2 dB(A) The declared dynamic operator sound pressure levels per ISO 6396:2008, when properly installed and maintained, are: – Standard cab: 68 ±3 dB(A) – Deluxe cab: 66 ±2 dB(A)

Service Refill Capacities

Transmission - Gear Box	2.9 gal (US) 11 l
Engine Crankcase	5.3 gal (US) 20 l
Hydraulic System - Including Tank	44.9 gal (US) 170 l
Rear Axles	9.2 gal (US) 35 l
Front Axles	9.2 gal (US) 35 l
Diesel Exhaust Fluid (DEF) Tank	5 gal (US) 19 l
Note	DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1. DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1.
Hydraulic Tank	23.8 gal (US) 90 l
Fuel Tank	51.5 gal (US) 195 l
Cooling System	7.9 gal (US) 32 l

Loader Hydraulic System

Note (1)	3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display, when equipped. 3rd and 4th function flow is fully 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	5.5 s 5.5 s
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time	9.7 s 9.7 s
Relief Pressure - Tilt Cylinder	4351 psi 30000 kPa
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time	10.6 s 10.6 s
Maximum Working Pressure - Implement Pump	4061 psi 28000 kPa
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure	4061 psi 28000 kPa
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Dump, at Maximum Lift Height	1.7 s 1.7 s
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Dump, at Maximum Lift Height	1.5 s 1.5 s
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Raise, Ground Level to Maximum Lift	6.2 s 6.2 s
Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level	2.7 s 2.7 s
Maximum Flow - Implement Pump - 4th Function Maximum Flow*	42 gal/min 160 l/min
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure	4351 psi 30000 kPa
Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Float Down, Maximum Lift to Ground Level	2.7 s 2.7 s
Maximum Flow - Implement Pump	50 gal/min 190 l/min
Maximum Flow - Implement Pump - 3rd Function Maximum Flow*	50 gal/min 190 l/min

Steering

Maximum Working Pressure - Steering Pump	3500 psi 24130 kPa
Steering Articulation Angle - Each Direction	40° 40°
Maximum Flow - Steering Pump	34 gal/min 130 l/min
Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left	3.3 turns 3.3 turns
Maximum Steering Torque - 0° (Straight Machine)	42506 ft·lbf 57630 N·m
Maximum Steering Torque - 40° (Full Turn)	31398 ft·lbf 42570 N·m
Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed	2.3 s 2.3 s

Transmission

Forward and Reverse - Range 3	17 mile/h 27 km/h
Forward and Reverse - Range 4	25 mile/h 40 km/h
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). 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) 1-13 km/h (0.6-8 mph)
Forward and Reverse - Range 2	8 mile/h 13 km/h

Sound

Note (1)	European Union Directive “2000/14/EC” European Union Directive “2000/14/EC”
Average Exterior Sound Pressure (ISO 6395:2008)	101 dB(A) 101 dB(A)
Operator Sound Pressure (ISO 6396:2008)	72 dB(A) 72 dB(A)

Tires

Note (1)	Other tire choices are available. Contact your Cat dealer for details. Other tire choices are available. Contact your Cat dealer for details.
Standard Size	20.5 R25, radial (L-3) 20.5 R25, radial (L-3)
Note (2)	In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities. In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities.
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); 23.5 R25, radial (L-3); 650/65 R25 radial (L-3); Skidder/Agriculture; Solid Tires 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); 23.5 R25, radial (L-3); 650/65 R25 radial (L-3); Skidder/Agriculture; Solid Tires
Note (3)	Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model. Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.

Axles

Rear	Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional) Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional)
Front	Fixed; Locking differential (standard) Fixed; Locking differential (standard)

Air Conditioning System

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 of refrigerant which has a CO2 equivalent of 2.717 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.9 kg of refrigerant which has a CO2 equivalent of 2.717 metric tonnes.