The Caterpillar 938K: An Overview

Cat 938K Specs

Maximum Gross Power 140 kW

Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4) 140 kW

Engine Model Cat® C7.1

Maximum Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3*) 129 kW

Note (2) *Range 4 power is boosted to be the same as Performance Mode.

Note (1) Net power shown is the power available at the flywheel when the engine is equipped with alternator and air cleaner.

Maximum Gross Power - 1,800 rpm - ISO 14396 (metric) (Performance Power Mode: Range 1-4) 190 hp

Net Power - 1,800 rpm - SAE J1349 (Performance Power Mode: Range 1-4) 136 kW

Net Power - 1,600 rpm - ISO 9249 (metric) (Standard Power Mode: Range 1-3*) 173 hp

Net Power - 1,800 rpm - ISO 9249 (metric) (Performance Power Mode: Range 1-4) 188 hp

Net Power - 1,600 rpm - SAE J1349 (Standard Power Mode: Range 1-3*) 126 kW

Maximum Gross Power - 1,600 rpm - ISO 14396 (metric) (Standard Power Mode: Range 1-3*) 175 hp

Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) 896 N·m

Displacement (Standard Power Mode: Speed Range 1-3*) 7.01 l

Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*) 870 N·m

Emissions Engine meets U.S. EPA Tier 3/EU Stage IIIA/Brazil MAR-1 equivalent emission standards.

Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) 912 N·m

Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) 860 N·m

Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4) 886 N·m

Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) 876 N·m

Displacement (Performance Power Mode: Speed Range 1-4) 7.01 l

Buckets

Bucket Capacities 2.5-5 m³ (3.2-6.5 yd³)

Bucket Capacities - General Purpose 2.5-3.2 m³ (3.2-4.2 yd³)

Bucket Capacities - Light Material 3.1-5 m³ (4.0-6.5 yd³)

Weights

Operating Weight 15282 kg

Cab

ROPS SAE J1040 MAY94, ISO 3471-1994

FOPS SAE J/ISO 3449 APR98, Level II, ISO 3449 1992 Level II

Note (1) Cab and Rollover Protective Structures (ROPS) are standard.

Note (2) A semi-cab option is available.

Service Refill Capacities

Axles - Front 35 l

Engine Crankcase 19.5 l

Fuel Tank 195 l

Hydraulic Tank 90 l

Hydraulic System - Including Tank 170 l

Transmission - Gear Box 11 l

Axles - Rear 35 l

Cooling System 32 l

Steering

Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left 3.1 turns

Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed 2.2 s

Maximum Working Pressure - Steering Pump 24130 kPa

Maximum Flow - Steering Pump 130 l/min

Maximum Steering Torque - 40° (Full Turn) 42570 N·m

Maximum Steering Torque - 0° (Straight Machine) 57630 N·m

Steering Articulation Angle - Each Direction 40°

Axles

Front Axle Fixed; Open differential (standard); Locking differential (optional)

Rear Axle Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional in some regions)

Loader Hydraulic System

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level 2.7 s

Maximum Working Pressure - Implement Pump 28000 kPa

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time 10.6 s

Maximum Flow - Implement Pump 190 l/min

Relief Pressure - Tilt Cylinder - 4th Function Maximum Working Pressure 28000 kPa

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Dump, at Maximum Lift Height 1.7 s

Maximum Flow - Implement Pump - 4th Function Maximum Flow* 150 l/min

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Dump, at Maximum Lift Height 1.5 s

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time 9.7 s

Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure 28000 kPa

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Raise, Ground Level to Maximum Lift 6.2 s

Relief Pressure - Tilt Cylinder 30000 kPa

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Float Down, Maximum Lift to Ground Level 2.7 s

Note *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

Maximum Flow - Implement Pump - 3rd Function Maximum Flow*. 190 l/min

Transmission

Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph)

Forward and Reverse - Range 2 13 km/h

Forward and Reverse - Range 4 40 km/h

Forward and Reverse - Range 3 27 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).

Sound

The declared exterior sound power level is 104 dB(A) when the value is measured according to the dynamic test procedures and the conditions that are specified in “ISO 6395:2008.”

The declared dynamic operator sound pressure level is 72 dB(A) when “ISO 6396:2008” is used to measure the value for an enclosed cab.

The measurement was conducted at 70% of the maximum engine cooling fan speed, with the cab doors and cab windows closed. The cab was properly installed and maintained. The sound level may vary at different engine cooling fan speeds.

Common Uses

The Caterpillar 938K is a versatile wheel loader that can be used for a variety of tasks. This wheel loader commonly used for loading and unloading materials, such as dirt, gravel, and rock. It can also be used for digging trenches, grading surfaces, and clearing debris. Additionally, the 938K can be used for snow removal, landscaping, and other tasks.

Price

The Caterpillar 938K has a purchase price of $95,000. The cost to rent the wheel loader for a day is $650, for a half day is $325, and for a week is $2,400.

Operating Weight and Maintenance Costs

The Caterpillar 938K has an operating weight of 33,691 pounds. The estimated monthly maintenance costs for the wheel loader are around $1,200. This cost includes oil changes, filter changes, and other routine maintenance.

Fuel Cost Estimates

The estimated fuel cost per month for the Caterpillar 938K is around $1,300. The hourly fuel cost estimation is around $6.50 per hour.

Similar Models

If you are looking for a model similar to the Caterpillar 938K, there are several options available. The Caterpillar 938G, The Caterpillar 930M, 980K, 982K, and 988K are all comparable. Additionally, the Komatsu WA500-7 and WA600-6 are also similar.

Conclusion

The Caterpillar 938K Wheel Loader is a powerful and efficient wheel loader that is capable of handling large loads. It is suitable for a variety of tasks, such as loading and unloading materials, digging trenches, grading surfaces, and clearing debris. The purchase price of the 938K is $95,000, and the cost to rent the wheel loader for a day is $650. The estimated monthly maintenance costs for this wheel loader are around $1,200, and the estimated fuel cost per month is around $1,300. If you are looking for a similar model, the Caterpillar 980K, 982K, 988K, Komatsu WA500-7, and WA600-6 are all good options.