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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.


Net Power 501.0 hp 373.0 kW Less
Engine Model Cat® C18 ACERT® Cat® C18 ACERT® Less
Gross Power 555.0 hp 414.0 kW Less
Net Power - ISO 9249 501.0 hp 373.0 kW Less
Gross Power - ISO 3046-2 520.0 hp 388.0 kW Less
Bore 5.7 in 145.0 mm Less
Stroke 7.2 in 183.0 mm Less
Displacement 1104.5 in3 18.1 L Less
Net Power ISO 14396 540.0 hp 397.0 kW Less
Net Power - EEC 80/1269 501.0 hp 373.0 kW Less

Operating Specifications

Operating Weight 110549.0 lb 50144.0 kg Less
Rated Payload 12.5 tons 11.4 tonnes Less


Converter Drive - Forward 1 4.2 mph 6.7 km/h Less
Converter Drive - Forward 2 7.3 mph 11.8 km/h Less
Converter Drive - Forward 3 12.9 mph 20.8 km/h Less
Converter Drive - Forward 4 22.3 mph 36.0 km/h Less
Converter Drive - Reverse 1 4.7 mph 7.6 km/h Less
Converter Drive - Reverse 2 8.4 mph 13.5 km/h Less
Converter Drive - Reverse 3 14.7 mph 23.7 km/h Less
Direct Drive - Forward 1 Lock-up disables Lock-up disables Less
Direct Drive - Forward 2 7.7 mph 12.3 km/h Less
Direct Drive - Forward 3 13.6 mph 21.9 km/h Less
Direct Drive - Forward 4 24.0 mph 38.6 km/h Less
Direct Drive - Reverse 1 4.9 mph 7.9 km/h Less
Direct Drive - Reverse 2 8.8 mph 14.1 km/h Less
Direct Drive - Reverse 3 15.6 mph 25.1 km/h Less

Hydraulic Cycle Time

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

Service Refill Capacities

Fuel Tank 188.0 gal 712.0 L Less
Cooling System 27.2 gal 103.0 L Less
Crankcase 15.9 gal 60.0 L Less
Transmission 18.5 gal 70.0 L Less
Differentials and Final Drives - Front 49.0 gal 186.0 L Less
Differentials and Final Drives - Rear 49.0 gal 186.0 L Less
Hydraulic System (factory fill) 124.2 gal 470.0 L Less
Hydraulic System (tank only) 70.5 gal 267.0 L Less


Wheel Base Length 14.93 ft 4550.0 mm Less
Center Line of Rear Axle to Edge of Rear Bumper 10.28 ft 3132.0 mm Less
Height to Top of Exhaust Stacks 13.49 ft 4112.0 mm Less
Height to Top of Hood 10.35 ft 3156.0 mm Less
Ground Clearance 1.8 ft 549.0 mm Less
Height to Top of Cab 13.54 ft 4128.0 mm Less
Height to Top of Air Cleaner 11.1 ft 3382.0 mm Less
Center Line of Front Axle to Hitch 7.46 ft 2275.0 mm Less
C-Pin Height 3.31 ft 1009.0 mm Less
Dig Depth 0.74 ft 226.0 mm Less
Rack Back Angle at Ground 47.8 Degrees 47.8 Degrees Less
Rack Back Angle at Carry 56.5 Degrees 56.5 Degrees Less
Clearance at Maximum Lift/Dump 12.73 ft 3879.0 mm Less
Height to Spillguard 17.82 ft 5432.0 mm Less
B-Pin Height 19.2 ft 5853.0 mm Less
Rack Back Angle at Maximum Lift 45.0 Degrees 45.0 Degrees Less


Bucket Capacities 6.4 m3-7.7 m3 8.3 yd3-10 yd3 6.4 m3-7.7 m3 8.3 yd3-10 yd3 Less
Max. Bucket Capacity 10.0 yd3 7.7 m3 Less


Maximum Single-Wheel Rise and Fall 22.4 in 568.0 mm Less
Front Fixed Fixed Less
Rear Oscillating ±13° Oscillating ±13° Less


Brakes Meet SAE ISO 3450:1996 Meet SAE ISO 3450:1996 Less


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


Steering Meets SAE and ISO standards Meets SAE and ISO standards Less
Total Steering Angle 86.0 Degrees 86.0 Degrees Less

Loader Hydraulic System

Main Hydraulic System Output at 2010 rpm and 6900 kPa (1000 psi) 130.0 gal/min 492.0 L/min Less
Relief Valve Setting 5075.0 psi 35000.0 kPa Less
Cylinders, Double Acting: Lift, Bore and Stroke 220 × 911 mm 8.7 × 35.9 in 220 × 911 mm 8.7 × 35.9 in Less
Cylinder, Double Acting: Tilt, Bore and Stroke 220 × 1770 mm 8.7 × 69.7 220 × 1770 mm 8.7 × 69.7 Less
Pilot System, Gear-Type Pump Output at 2010 rpm and 2500 kPa (363 psi) 20.1 gal/min 76.0 L/min Less
Relief Valve Setting (low idle) 348.1 psi 2400.0 kPa Less


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

Fuel Efficiency

Fuel Management

Operating Efficiency

Operator and job site efficiency


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

Operator Comfort

Best-in-class working environment

Technology Solutions

Systems and features to achieve even greater productivity

Buckets and Ground Engaging Tools

Provide flexibility to match the machine to your application


Increase uptime by reducing service time

Customer Support

Count on Cat dealers for business solutions


Protecting the environment


Keeping your people safe and productive is our number one priority

988HStandard Equipment

  • 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

  • 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

  • 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)

  • A tire must be selected from the Mandatory Attachment section. Base machine price includes a tire allowance.

  • Antifreeze, premixed 50% concentration of Extended Life Coolant with freeze protection to -34° C (-29° F)

  • 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

988HOptional Equipment


Axle oil coolers

Block Handler configuration (Custom)


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



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)