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Large Wheel Loaders

Cat® wheel loaders come in many different configurations to meet your requirements in all regions of the world.

Wheel Loaders for Any Job

Whether you need a wheel loader for use in landscaping, agricultural, construction, waste management, forestry, or mining applications. Caterpillar wheel loaders make your material handling and loading jobs safer, faster, more precise and profitable.

Cat wheel loaders set the standard for reliability, productivity, fuel efficiency, versatility and operator comfort. These environmentally friendly front end loader machines apply proven technologies systematically and strategically to meet our customer’s high expectations. Deep system integration results in reduced emissions and improved fuel economy without interrupting machine performance. Make your Cat wheel loader even more versatile by pairing it with Caterpillar’s broad range of work tools.

Select from a wide variety of front loaders in every size class: Compact Wheel Loaders, Small Wheel Loaders, Medium Wheel Loaders and Large Wheel Loaders. No matter what your material or handling job is, your Cat dealer can help you choose the wheel loader that best matches your needs.

988H Large Wheel Loader Millyard Arrangements

In the harsh environment of a millyard application, you need a wheel loader designed for the job. Since 1963, the Cat® Large Wheel Loaders have helped more customers than any other manufacturer’s model in this wheel loader size class. Read on to learn more about how Cat log loaders deliver sustainable productivity, fuel efficiency, serviceability, reliability and versatility.

  • Specification Summary

  • Net Power393.0 kW
  • Engine ModelCat® C18 ACERT™
  • Gross Power414.0 kW
  • Net Power - ISO 9249373.0 kW
  • Gross Power - ISO 3046-2388.0 kW
  • Product Brochure


Product Details


Net Power 393.0 kW
Engine Model Cat® C18 ACERT™
Gross Power 414.0 kW
Net Power - ISO 9249 373.0 kW
Gross Power - ISO 3046-2 388.0 kW
Bore 145.0 mm
Stroke 183.0 mm
Displacement 18.1 L
Net Power - EEC 80/1269 373.0 kW
Net Power - ISO 14396 393.0 kW

Operating Specifications

Operating Weight 58330.0 kg
Attachment Type Cat Logging Forks
Hinge Pin Height, Unloaded 4909.0 mm
Overall Length 12465.0 mm
Tipping Load - Articulated 37° 29819.0 kg
Tipping Load - Straight 34338.0 kg
Turning Radius at SAE Carry 9253.0 mm


Converter Drive - Forward 4 36.0 km/h
Direct Drive - Forward 4 38.6 km/h
Converter Drive - Forward 1 6.7 km/h
Converter Drive - Forward 2 11.8 km/h
Converter Drive - Forward 3 20.8 km/h
Converter Drive - Reverse 1 7.6 km/h
Converter Drive - Reverse 2 13.5 km/h
Converter Drive - Reverse 3 23.7 km/h
Direct Drive - Forward 1 Lock-up disabled
Direct Drive - Forward 2 12.3 km/h
Direct Drive - Forward 3 21.9 km/h
Direct Drive - Reverse 1 7.9 km/h
Direct Drive - Reverse 2 14.1 km/h
Direct Drive - Reverse 3 25.1 km/h


Maximum Single-Wheel Rise and Fall 568.0 mm
Front Fixed
Rear Oscillating ±13°


Steering Meets SAE and ISO standards
Total Steering Angle 74.0 Degrees

Service Refill Capacities

Fuel Tank 712.0 L
Cooling System 103.0 L
Crankcase 60.0 L
Transmission 70.0 L
Differentials and Final Drives - Front 186.0 L
Differentials and Final Drives - Rear 186.0 L
Hydraulic System (factory fill) 470.0 L
Hydraulic System (tank only) 267.0 L


Cab - ROPS/FOPS Meets SAE and ISO standards
Sound Performance Meets ANSI, SAE and ISO standards


Brakes Meet SAE/ISO 3450:1996


Improving your bottom line

Purpose Built Linkage

The 988H log loader arrangement includes a purpose built linkage designed to optimize machine performance for the log loading application. Larger lift and tilt cylinders with extra counterweight allow the machine to unload an on-highway truck with a single pass. Third valve hydraulics allow for top clamp operation to secure the log load. The optional Ride Control attachment cushions the lift arms when operating with a log load, improving operator comfort and productivity.

Positive Flow Control (PFC)

PFC has concurrent pump and valve control and a force feedback system that keeps displacement where it is required for optimized pump control. By optimizing pump control, hydraulic oil flow is proportionate to implement lever stroke. The benefits include:
  • Lowered fuel consumption
  • Improved hydraulic response, giving the operator a better feel and control of the forks
  • Improved power efficiency and lower system heat

Fuel Efficiency

Minimizing costs

Auto Idle Kickdown

If an operator is not actively operating a machine for a period of time, the AIK system will temporarily reduce engine speed to save fuel. The system will automatically resume the engine speed at the previous setting when the operator engages the implement control pod, the F-N-R switch or the STIC steer.

Idle Shutdown

The engine will automatically shut down after the machine has been in a safe idling state for an extended amount of time. The operator in the cab will be audibly and visually warned before the system shuts down.

Impeller Clutch Torque Converter (ICTC) and Rimpull Control System

ICTC combined with the RCS allows the operator maximum flexibility in modulating rimpull. Left brake pedal modulates rimpull from 100 to 25 percent for reduced tire slippage and wear. After 25 percent is achieved, further pedal travel applies the brakes. RCS reduces the potential for wheel slippage without reducing the hydraulic efficiency. An in-cab switch allows the operator to set a percentage of maximum rimpull to meet operating conditions. Four settings are available, and operators can set rimpull at 60, 70, 80 or 90 percent.

Torque Converter Lock-Up Clutch

A lock-up clutch torque converter provides direct drive efficiency which translates into improved fuel economy in a millyard application.


Maximizing uptime, long life - it’s what you expect from your Cat Wheel Loader


Cat Large Wheel Loader structures are designed with superior durability for multiple machine rebuilds by combining the use of robotic welding and castings in critical high stress areas. More than 80 percent of the machine structure is robotically welded to provide highly consistent welds and increased strength. Castings are also used in several areas to increase strength by helping spread the loads and reduce the number of parts.

Front Frame and Rear Frame

Highly engineered and a field proven combination, Cat Large Wheel Loaders use high strength plates and castings which distribute loads and increase structural robustness. A key differentiator from other manufactures machines is the box section rear frame and box section loader tower. The box section absorbs tensional forces generated in a loading cycle, maintaining alignment for hitch pins and driveline. The box shaped loader tower resists shock and torsional loads, maintaining hitch and loader linkage pin alignment, maximizing pin life.

Axle-Shaft, Oil Disc Brakes

These brakes are adjustment free, fully hydraulic and completely sealed. Disc face grooves provide cooling even when brakes are applied for a longer component life. Location of brakes allow for improved serviceability. The axle shaft brake design allows for brake service while leaving the final drive intact. Axle-shaft brakes require less force by operating on the low torque side of the axle. Combined with improved axle oil circulation for increased cooling, the oil-enclosed, multiple disc brake design improves durability.


Built to protect you

Entry and Exit

Getting on and off the machine is one of the leading causes of injury on a job site. Cat Large Wheel Loaders have a number of features to ensure your operator gets safely on and off the machine. Cat Large Wheel Loaders include primary and secondary stairwell exits, punch stamped tread plates, ground level nighttime stairwell light switch, full perimeter railings on upper platforms, side platform emergency egress and toe kicks and optional roading fenders.

Rearview Camera

With the new optional rearview camera, visibility is greatly enhanced. The camera is located in a pocket on the grill to protect it from damage and the elements. The camera can be set to activate only when the transmission is in reverse to help eliminate distractions in the cab, especially when in dark environments.


Cat Large Wheel Loaders offer a number of standard and optional features to enhance job site visibility. Standard and optional features include long life LED lights, articulated wiper/washer system with intermittent features, optional rear vision camera, optional high intensity discharge lights, optional warning beacon and optional turn signals. The rearview camera display can accommodate up to three cameras which can be configured in a variety of ways by your local Cat dealer. Object detection kits are also available through your local Cat dealer.


Easy to maintain. Easy to service.

Optional Swing Out Radiator Fan

The optional swing out radiator fan provides for easy access to the radiator cores for easy cleaning and inspection.

Auto Reversing, Hydraulically Driven Demand Fan

The demand fan automatically adjust fan speed for optimal cooling, resulting in reduced power draw on the engine, better fuel efficiency and more power for hydraulics and rimpull. The fan reverses automatically at preset intervals to remove debris from the inlet screen. It can also be reversed manually from the cab.

Component Access

Swing out doors on both sides of the engine compartment provide easy access to the engine oil dipstick and filler spout, S?O?SSM ports, fuel filters air conditioner compressor, engine oil filters, alternators, starting receptacle, air filter service indicator, cooler fill and ether starting aid. There are also ground level viewable sight gauges on all major systems and centralized remote pressure taps.

Shutdown and Lockout Features

An electrical disconnect switch and hydraulic lockout switch allow service technicians to perform maintenance while the machine stays static. Other shutdown or lockout devices include ground level engine shutdown and ground level steering hitch lock lever.

Operator Comfort

Best-in-class working environment

Best-in-Class Working Environment

A comfortable operator is a productive operator, which is why Caterpillar has designed the 988H with a best-in-class working environment for this size wheel loader class.
  • Ergonomic controls are fully adjustable and designed for low-effort comfort. Switches and controls for various systems are located within easy reach of the operator.
  • Caterpillar Monitoring System (EMS-III) provides information on machine’s major components. This includes gauge displays for the fuel tank level; temperature gauges for the engine coolant, torque converter and hydraulic oil; tachometer analog gauge with digital readout for gear selection and ground speed and a monitoring system.
  • Optional features are available for improved visibility. These options include a rear vision camera to clearly monitor movement behind the wheel loader and high intensity discharge (HID) lights for greater visibility at night.


Work Tool options to meet your needs

Forks and Buckets

Millyard and Logging Forks are designed to move wood in the millyard. Woodchip Buckets are designed with performance characteristics to bring productivity and fuel efficiency to load-and-carry work in the yard.

Millyard Forks

A single top clamp closes down between the tines, allowing individual logs to be picked and placed with ease. An open, high visibility design allows operators to see the job at hand, work faster and more efficiently.

Logging Forks

Dual top clamps close down to the tine tips, their curvature maximizes carry capacity. Built to match the task of unloading trucks. An open, high visibility design allows operators to see the job at hand, work faster and more efficiently.

Woodchip Buckets

Extra capacity and loading characteristics make this bucket style perfect for handling woodchips. Available in direct pin on models or for use with the Cat Quick Coupler System.

Cat Full Width Forks

Dual top clamps are connected to allow maximum capacity while still closing between the tines allowing partial loads to be handled.

Customer Support

Count on Cat dealers for business solutions


Cat dealers can help customers compare and choose the right machine for their business.


Cat dealers offer financing options to meet a variety of needs.


Improve operating technique for better productivity and profit with the latest Cat dealer training resources.

Product Support

Cat dealers are with customers every step of the way with unsurpassed worldwide parts support, trained technicians and customer support agreements.

Cat Product Link

Cat Product Link enables convenient remote monitoring of equipment. Get usable information to keep jobs on schedule, maintain machine health and reduce fleet owning and operating costs.
  • Simplify fleet management and monitor machine use
  • Link all machines regardless of brands
  • Three levels of insight to meet specific business requirements.

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