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Overview

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.

Engine

Units:
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 - EEC 80/1269 501.0 HP 373.0 kW Less
Net Power - ISO 14396 540.0 HP 397.0 kW Less

Operating Specifications

Operating Weight 110549.0 lb 50144.0 kg Less
Rated Payload 12.5 t 11.4 t Less

Transmission

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

Hydraulic Cycle Times

Dump 2.4 s 2.4 s Less
Lower Float Down - Empty 3.8 s 3.8 s Less
Raise 9.4 s 9.4 s Less
Total Hydraulic Cycle Time 15.6 s 15.6 s Less

Service Refill Capacities

Fuel Tank 188.0 gal (US) 712.0 l Less
Cooling System 27.2 gal (US) 103.0 l Less
Crankcase 15.9 gal (US) 60.0 l Less
Transmission 18.5 gal (US) 70.0 l Less
Differential - Final Drives - Front 49.0 gal (US) 186.0 l Less
Differential - Final Drives - Rear 49.0 gal (US) 186.0 l Less
Hydraulic System Factory Fill 124.2 gal (US) 470.0 l Less
Hydraulic System - Tank Only 70.5 gal (US) 267.0 l Less

Dimensions*

Centerline of Rear Axle to Edge of Rear Bumper 10.28 ft 3132.0 mm Less
Wheel Base Length 14.93 ft 4550.0 mm Less
Height - Top of Exhaust Stack 13.49 ft 4112.0 mm Less
Height - Top of Hood 10.35 ft 3156.0 mm Less
Ground Clearance 1.8 ft 549.0 mm Less
Height - Top of Cab 13.54 ft 4128.0 mm Less
Height - Top of Air Cleaner 11.1 ft 3382.0 mm Less
Centerline 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 - Ground 47.8 ° 47.8 ° Less
Rack Back Angle - Carry 56.5 ° 56.5 ° Less
Clearance at Maximum Lift and Dump 12.73 ft 3879.0 mm Less
Height - Spillguard 17.82 ft 5432.0 mm Less
B-Pin Height 19.2 ft 5853.0 mm Less
Rack Back Angle - Maximum Lift 45.0 ° 45.0 ° Less

Buckets

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
Maximum Bucket Capacity 10.0 yd³ 7.7 m³ Less

Axles

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

Brakes

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

Cab

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

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

Loader Hydraulic System

Cylinders, Double Acting - Lift, Bore and Stroke 220 × 911 mm 8.7 × 35.9 in 220 × 911 mm 8.7 × 35.9 in Less
Cylinders, Double Acting - Tilt, Bore and Stroke 220 × 1770 mm 8.7 × 69.7 220 × 1770 mm 8.7 × 69.7 Less
Main Hydraulic System Output at 2010 rpm and 6900 kPa (1000 psi) 130.0 gal/min 492.0 l/min Less
Pilot System - Gear-Type Pump Output at 2,010 rpm and 2500 kPa (363 psi) 20.1 gal/min 76.0 l/min Less
Relief Valve Setting 5075.0 psi 35000.0 kPa Less
Relief Valve Setting - Low Idle 348.1 psi 2400.0 kPa Less

Productivity

Fuel Efficiency

Operating Efficiency

Reliability

Operator Comfort

Technology Solutions

Buckets and Ground Engaging Tools

Serviceability

Customer Support

Sustainability

Safety

988H Standard Equipment

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)

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