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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 Wheel Loader

Since 1963, the Cat® 988 Wheel Loader has helped more customers than any other manufacturer's model in this wheel loader size class. Today, we continue that legacy with the 988H update. We know times are tough...the economy is challenging...but the 988H update is our commitment to bringing you, our customers, the absolute best value. With the 988H update, Caterpillar continues the tradition of incorporating customer driven enhancements that increase productivity and lower fuel consumption, improves reliability of key systems and components and improves safety and ergonomics for your operators.

Product Details

Engine

Net Power 373.0 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 ISO 14396 397.0 kW
Net Power - EEC 80/1269 373.0 kW

Operating Specifications

Operating Weight 50144.0 kg
Rated Payload 11.4 tonnes

Buckets

Bucket Capacities 6.4 m3-7.7 m3 8.3 yd3-10 yd3
Max. Bucket Capacity 7.7 m3

Transmission

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 - Forward 4 36.0 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 disables
Direct Drive - Forward 2 12.3 km/h
Direct Drive - Forward 3 21.9 km/h
Direct Drive - Forward 4 38.6 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

Axles

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

Hydraulic Cycle Time

Raise 9.4 Seconds
Dump 2.4 Seconds
Lower Float Down (Empty) 3.8 Seconds
Total Hydraulic Cycle Time 15.6 Seconds

Loader Hydraulic System

Main Hydraulic System Output at 2010 rpm and 6900 kPa (1000 psi) 492.0 L/min
Relief Valve Setting 35000.0 kPa
Cylinders, Double Acting: Lift, Bore and Stroke 220 × 911 mm 8.7 × 35.9 in
Cylinder, Double Acting: Tilt, Bore and Stroke 220 × 1770 mm 8.7 × 69.7
Pilot System, Gear-Type Pump Output at 2010 rpm and 2500 kPa (363 psi) 76.0 L/min
Relief Valve Setting (low idle) 2400.0 kPa

Steering

Steering Meets SAE and ISO standards
Total Steering Angle 86.0 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

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

Dimensions*

Wheel Base Length 4550.0 mm
Height to Top of Exhaust Stacks 4112.0 mm
Height to Top of Hood 3156.0 mm
Ground Clearance 549.0 mm
Height to Top of Cab 4128.0 mm
Height to Top of Air Cleaner 3382.0 mm
Center Line of Rear Axle to Edge of Rear Bumper 3132.0 mm
Center Line of Front Axle to Hitch 2275.0 mm
C-Pin Height 1009.0 mm
Dig Depth 226.0 mm
Rack Back Angle at Ground 47.8 Degrees
Rack Back Angle at Carry 56.5 Degrees
Clearance at Maximum Lift/Dump 3879.0 mm
Height to Spillguard 5432.0 mm
B-Pin Height 5853.0 mm
Rack Back Angle at Maximum Lift 45.0 Degrees

Brakes

Brakes Meet SAE ISO 3450:1996

Productivity

Designed with the right features to meet the daily demands of your job site

Positive Flow Control Hydraulics

The 988H Positive Flow Control (PFC) Hydraulic System is setting a new standard for hydraulic response, performance and efficiency. The implement system is equipped with one electronically-controlled, fully variable piston pump for fast, productive cycles. PFC has concurrent pump and valve control. This is achieved through an integrated solenoid with a force feedback system which keeps the displacement where it is required for optimized pump control. By optimizing pump control, hydraulic oil flow is proportionate to implement lever stroke. Benefits:
  • Lowered fuel consumption by up to five percent
  • Improved hydraulic response, giving the operator better feel and control of the bucket
  • Improved power efficiency and lower system heat

Engine

The Cat® C18 engine with ACERT® Technology is U.S. EPA Tier 3 and EU Stage III compliant. It features increased horsepower and efficient fuel management for quick response, high productivity and exceptional service life. A sculptured cylinder block provides greater strength and is lighter weight.

Fuel Efficiency

Fuel Management

New and current features are built into the 988H and depending on application requirements can provide up to 15 percent less fuel burn.

988H Fuel Management System

The Cat® 988H Wheel Loader Fuel Management System delivers solid productivity and fuel savings of as much as 15 percent in truck loading and more in load and carry operations. By lowering engine speed during all but the digging portion of each cycle, the proprietary system minimizes impact on productivity while gaining significant fuel savings.

Auto Idle Kickdown (AIK)

If an operator is not actively operating the 988H for a period of time, the AIK system will temporarily reduce the engine speed to save fuel. After an automated engine speed reduction, the system will automatically resume the engine speed to the previous setting when the operator engages the implement control pod of the F-N-R switch or the STIC Steer.

Engine Idle Shutdown

This new feature will automatically shutdown the engine 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 shutdown occurs.

Operating Efficiency

Operator and job site efficiency

Impeller Clutch Torque Converter (ICTC) and Rimpull Control System (RCS)

ICTC combined with the RCS allows the operator maximum flexibility in the 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 brake.
  • RCS reduces the potential for wheel slippage without reducing the hydraulic efficiency. An in-cab switch allows the operator to set percentage of maximum rimpull to meet operating conditions. Four settings are available, and operators can set rimpull at 70, 80, 90 and 100 percent.
  • A lock-up clutch torque converter provides direct drive efficiency which translates into improved fuel efficiency in certain applications.

Variable Shift Control

VSC matches transmission shifting patterns to machine application requirements, by shifting at lower engine rpms. This both improves shift quality and fuel efficiency in certain applications.

Reliability

Maximize uptime, long life - it's what you expect from your bottom line

Structures

Combining the use of robotic welding and castings in critical high-stress areas, more than 90 percent of the 988H structure is robotically-welded to provide highly consistent welds and increased strength. Castings are also used in several areas to increase strength by helping to spread the loads and reduce the number of parts.

Front Frame and Rear Frame

Highly engineered and a field-proven combination, the 988H uses high-strength plates and castings which distribute loads and increases structure robustness. A key differentiator from other manufacturers’ machines is the box-section rear frame and box-shaped loader tower. The box section absorbs torsional 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.

Linkage

The 988H features the revolutionary box boom linkage design. Known for its durability, the 988H box boom linkage has high strength castings in pin joint areas that resist twisting and minimize stress. A B-pin bucket mount is placed at a height to prevent bucket healing due to better stress distribution from bucket to boom. Additionally, a four-hinge plate bucket design is utilized to increase bucket durability.

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 the 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.

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.

  • World class cab with over 3.18 m³ (112 ft³) of volume incorporates features for operator comfort and ergonomics, visibility and ease of operation.
  • 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.
  • Interior noise levels are reduced to a quiet 72 dB(A).
  • 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.
  • With the update, new options to include heated seat for cold weather operations and radio offerings of Bluetooth, MPS and satellite options are now available.

Technology Solutions

Systems and features to achieve even greater productivity

New Payload Control System 3.0 (Optional)

The new Payload Control System (PCS) 3.0 is designed to help the 988H owners and operators manage truck payloads and produce accurate records of material movement. This advanced electronic control system is designed for on-the-go weighing. With the new PCS 3.0 system, accuracy is now ±1 percent, has improved interface, can record up to 1,000 trucks and can store 25 different materials for continued record accuracy of job site production.

Automatic Kickouts

Operators can easily set the dump height, return to dig/carry or bucket angle from the comfort of the cab. Standard, in-cab programmable kickouts are located in the upper left panel. This feature provides more flexibility and improved productivity when the job requires load and dump target heights.

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 brand
  • Three levels of insight to meet specific business requirements

Buckets and Ground Engaging Tools

Provide flexibility to match the machine to your application

New Performance Series Bucket Offering

With the 988H update, Caterpillar introduces a new bucket offering ranging from 6.4 m³ (8.3 yd³) to 7.7 m³ (10 yd³). The new buckets offer design enhancements to include larger throat opening, increased floor length and improved setback angle. These design enhancements yield improved bucket fill factor and load retention in carry position.

Spade Edge Rock Buckets

These buckets with bolt-on segments are available in 6.4 m³ (8.3 yd³) to 7.7 m³ (10 yd³). Each accepts up to two sets of sidebar protectors (4), featured shouldered, double-strap adapters, easily changed bolt-on segments and several tip options.

General Purpose Buckets

Available in 6.3 m³ (8.2 yd³) Straight Edge Rock, as well as 7.0 m³ (9.2 yd³) and 7.7 m³ (10 yd³) General Purpose configurations. The General Purpose bucket features double strap adapters and accepts two sets of sidebar protectors, bolt-on segments and tips. The General Purpose bucket is available with bolt-on cutting edge, bolt-on adapters or bolt-on adapters with segments.

Heavy Duty Rock Bucket

This bucket is available with a 6.4 m³ (8.33 yd³) capacity and is recommended for use in face loading where abrasion and moderate impact is encountered. This bucket features additional wear protection items including independently attached edge and adapter covers, additional liners and wear plates, one set of sidebar protectors and a thicker base edge.

Heavy Duty Granite Bucket

This 6.4 m³ (8.33 yd³) capacity bucket is recommended for use in face loading where moderate abrasion and high impact is encountered. It features additional wear protection items including four sidebar protectors, thicker base edge and adapters, additional liners and wear plates and bolt-on half arrow segments.

Serviceability

Increase uptime by reducing service time

The 988H is designed to ensure minimal downtime through ground level or platform access, grouped service points, and attention to key serviceable areas on the machine.

  • Maintain three points of contact at all times through ground level or platform accessible service areas.
  • Ground level viewable site gauges on all major systems.
  • 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.
  • Longer service intervals on fluids and filters.
  • 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, alternator, starting receptacle, air filter service indicator, cooler fill and ether starting aid.
  • Maintenance-free batteries
  • Ecology drains for ease of service and prevention of spilling potential environmental contaminants. Ecology drains are standard on the hydraulic, engine, transmission and coolant systems.
  • Centralized remote pressure taps.

Customer Support

Count on Cat dealers for business solutions

Selection

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

Financing

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

Operation

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.

Sustainability

Protecting the environment

Protecting the Environment

With the 988H having a long legacy, it is only fitting this machine has features and services that show environmental responsibility.
  • Burns up to five percent less fuel than the previous model. Offers a number of fuel saving features to further lower fuel consumption, which not only benefits operating cost but reduces the 988H's CO2 footprint.
  • First in this wheel loader size class to meet Tier 3 emissions, and Caterpillar continues to develop technology to meet changing regulatory requirements.
  • Maintenance-free, ease of maintenance or extended maintenance, attention has been paid to lowering routine maintenance cost while eliminating waste to the environment.
  • Built for multiple lives, the Cat 988H is one of the most rebuilt products. To assist with maximizing machine life, Caterpillar provides a number of sustainable options such as our Reman and Certified Rebuild programs. In these programs, reused or remanufactured components can deliver cost savings of 40 to 70 percent, which lowers operating cost while benefiting the environment.
  • Caterpillar offers retrofit packages to bring new features to older machines, maximizing your resource. And, when you go through the Cat Certified Rebuild program, these retrofit kits are part of the rebuild process.

Safety

Keeping your people safe and productive is our number one priority

At Caterpillar, we have designed the 988H with your most important asset in mind - People. Drawing from a history of technological advancements and practical wisdom, you can be assured that your people are protected while working in, on or around the 988H Wheel Loader.

Visibility

Good visibility, whether it be positioning to the truck or watching for people and vehicles on the site, the 988H offers a number of standard and optional features to enhance job site visibility. Standard and optional features include articulated wiper/washer system with intermittent features, optional rear vision camera, optional high intensity discharge (HID) lights, optional warning beacon and optional turn signals.

Access and Egress

Getting on and off the machine is one of the leading causes of injury on a job site. The 988H has a number of features to ensure your operator gets safely on and off the 988H. The 988H includes primary and secondary stairwell exits, punch stamped tread plates located throughout the machine, ground level night time stairwell light switch, full perimeter railings on the upper platform, side platform emergency egress and toe kicks and optional roading fenders.

Maintenance Safety

Daily and routine maintenance should not pose a safety hazard to your operator or service technician. With the 988H, design efforts were taken to group service points with convenient access. As seen in the serviceability section, all service points are at ground level or platform access to maintain three points of contact, and a number of disconnect switches are available to ensure the 988H is static during service.

Operator Health and Well Being

For the 988H, the operator and safety go hand-in-hand. The 988H offers many features that enhance operator comfort and aid in keeping the operator safe. In the cab, all controls are ergonomically designed for easy adjustment, low-effort and easy to reach controls minimize repetitive motion and potential strains. With a cab filtration system, low operator sound and optional features such as ride control or secondary steering, all effort has been made to protect the operators from environmental elements that can cause issues with their health or well-being.
  • POWER TRAIN
    •  Brakes, full hydraulic, enclosed, wet multiple disc service
    •  Case drain filters
    •  Demand fan
    •  Engine, Cat® C18 with ACERT® Technology
    •  Fuel priming pump (electric)
    •  Guard, (3 piece) transmission
    •  Parking brake
    •  Precleaner, engine air intake
    •  Radiator, Next Generation Modular (NGMR)
    •  Separated cooling system
    •  Starting aid (ether), automatic
    •  Throttle lock
    •  Torque converter, impeller clutch with Rimpull Control System (switch and dial in cab)
    •  Transmission, planetary, auto-shift with 4F/3R speed range control
  • ELECTRICAL
    •  Alarm, back-up
    •  Alternator (95-amp)
    •  Batteries, maintenance-free (4-950 CCA)
    •  Deutsch terminal connectors
    •  Electrical system (24-volt)
    •  Lighting system, halogen (front and rear) lighting, access stairway
    •  Starter, electric (heavy duty)
    •  Starting receptacle for emergency start
  • OPERATOR ENVIRONMENT
    •  Air conditioner
    •  Cab, sound-suppressed pressurized, internal four-post Rollover Protective Structure (ROPS/FOPS)
    •  Cigar lighter (12-volt) and ashtray
    •  Coat hook
    •  Electro-hydraulic tilt and lift controls (floor-mounted)
    •  Heater and defroster
    •  Horn, electric
    •  Laminated glass
    •  Light, (dome) cab
    •  Lunchbox and beverage holders
    •  Monitoring system (EMS-III)
    •  Action alert system, three category
    •  Instrumentation, gauges
    •  Instrumentation, warning indicators:
    •  Mirrors, rearview (externally-mounted)
    •  Seat, Cat Comfort (cloth) air suspension
    •  Seat belt, retractable, 76 mm (3 in) wide
    •  STIC control system with steering lock
    •  Tilt and lift control system lock
    •  Tinted glass
    •  Transmission gear (indicator)
    •  Wet-arm wipers/washers (front and rear)
    •  Intermittent wipers (front and rear)
  • Air conditioner
    • Cab, sound-suppressed pressurized, internal four-post Rollover Protective Structure (ROPS/FOPS)
      • Cigar lighter (12-volt) and ashtray
        • Coat hook
          • Electro-hydraulic tilt and lift controls (floor-mounted)
            • Heater and defroster
              • Horn, electric
                • Laminated glass
                  • Light, (dome) cab
                    • Lunchbox and beverage holders
                      • Monitoring system (EMS-III)
                        • Action alert system, three category
                          • Instrumentation, gauges
                            • Instrumentation, warning indicators:
                              • Mirrors, rearview (externally-mounted)
                                • Seat, Cat Comfort (cloth) air suspension
                                  • Seat belt, retractable, 76 mm (3 in) wide
                                    • STIC control system with steering lock
                                      • Tilt and lift control system lock
                                        • Tinted glass
                                          • Transmission gear (indicator)
                                            • Wet-arm wipers/washers (front and rear)
                                              • Intermittent wipers (front and rear)
                                                • TIRES, RIMS AND WHEELS
                                                  •  A tire must be selected from the Mandatory Attachment section. Base machine price includes a tire allowance.
                                                • FLUIDS
                                                  •  Antifreeze, premixed 50% concentration of Extended Life Coolant with freeze protection to -34° C (-29° F)
                                                • OTHER STANDARD EQUIPMENT
                                                  •  Engine idle shutdown
                                                  •  Automatic bucket tilt/lift kickouts, electronically adjustable from cab
                                                  •  Counterweight
                                                  •  Doors, service access (locking)
                                                  •  Emergency platform egress
                                                  •  Engine, crankcase, 500-hour interval with CI4 oil
                                                  •  Extended roof
                                                  •  Fuel Management System
                                                  •  Ground level fuel fill
                                                  •  Grouped electronic clutch pressure control and remote-mounted pressure taps
                                                  •  Auto idle kickdown
                                                  •  Hitch, drawbar with pin
                                                  •  Hydraulic oil cooler
                                                  •  Lower cab cover
                                                  •  Muffler (under hood)
                                                  •  Oil sampling valves
                                                  •  Product Link
                                                  •  Stairway, left and right rear access
                                                  •  Steering, load-sensing
                                                  •  Tilt regeneration
                                                  •  Toe kicks
                                                  •  Vandalism protection caplocks
                                                  •  Venturi stack
                                                • AutoLube
                                                  • Axle oil coolers
                                                    • Block Handler configuration (Custom)
                                                      • Buckets
                                                        • Bulk Loader configuration (Custom)
                                                          • Directional lights
                                                            • Engine brake
                                                              • Extended Life Coolant -50° C (-58° F)
                                                                • Forestry configuration (Custom)
                                                                  • Fuel, fast fill
                                                                    • Fuel, fast fill and heater
                                                                      • Guards
                                                                        • Crankcase
                                                                          • Steering cylinders
                                                                            • Heater, engine coolant, 120-volt
                                                                              • Heater, engine coolant, 220-volt
                                                                                • High ambient cooling
                                                                                  • Hydraulic, three-valve
                                                                                    • Lights, HID
                                                                                      • Linkage, 4.25 meter
                                                                                        • Lock-up clutch
                                                                                          • Mid-ambient cooling
                                                                                            • No-SPIN differential, rear only
                                                                                              • Oil change, high-speed
                                                                                                • Payload Control System (PCS)
                                                                                                  • Product Link
                                                                                                    • Rear chain clearance
                                                                                                      • Ride Control
                                                                                                        • Roading fenders, front and rear
                                                                                                          • Roof, extended
                                                                                                            • Secondary steering
                                                                                                              • Sound suppression, exterior
                                                                                                                • Steel Mill configuration (Custom)
                                                                                                                  • Tires

                                                                                                                    360° Exterior View

                                                                                                                    360° Interior View

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