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, improve reliability of key systems and components and improve safety and ergonomics for your operators.

Engine
Net Power	501 hp
Engine Model	Cat® C18 ACERT®
Gross Power	555 hp
Net Power - EEC 80/1269	501 hp
Net Power - ISO 9249	501 hp
Gross Power - ISO 3046-2	520 hp
Bore	5.7 in
Stroke	7.2 in
Displacement	1104.5 in3
Operating Specifications
Operating Weight	110549 lb
Rated Payload	12.5 tons
Transmission
Converter Drive - Forward 1	4.2 mph
Converter Drive - Forward 2	7.3 mph
Converter Drive - Forward 3	12.9 mph
Converter Drive - Forward 4	22.3 mph
Converter Drive - Reverse 1	4.7 mph
Converter Drive - Reverse 2	8.4 mph
Converter Drive - Reverse 3	14.7 mph
Direct Drive - Forward 1	Lock-up disables
Direct Drive - Forward 2	7.7 mph
Direct Drive - Forward 3	13.6 mph
Direct Drive - Forward 4	24 mph
Direct Drive - Reverse 1	4.9 mph
Direct Drive - Reverse 2	8.8 mph
Direct Drive - Reverse 3	15.6 mph
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
Service Refill Capacities
Fuel Tank	188 gal
Cooling System	27.2 gal
Crankcase	15.9 gal
Transmission	18.5 gal
Differentials and Final Drives - Front	49 gal
Differentials and Final Drives - rear	49 gal
Hydraulic System (factory fill)	124.2 gal
Hydraulic System (tank only)	70.5 gal
Dimensions*
Height to Top of Exhaust Stacks	13.49 ft
Height to Top of Hood	10.35 ft
Ground Clearance	1.8 ft
Height to Top of Cab	13.54 ft
Height to Top of Air Cleaner	11.1 ft
Center Line of Rear Axle to Edge of Rear Bump	10.28 ft
Center Line of Front Axle to Hitch	7.46 ft
C-Pin Height	3.31 ft
Dig Depth	0.74 ft
Rack Back Angle at Ground	47.8 Degrees
Rack Back Angle at Carry	56.5 ft
Clearance at Maximum Lift/Dump	12.73 ft
Height to Spillguard	17.82 ft
B-Pin Height	19.2 ft
Rack Back Angle at Maximum Lift	45 Degrees
Buckets
Bucket Capacities	6.4 m3-7.7 m3 8.3 yd3-10 yd3
Max. Bucket Capacity	10 yd3
Axles
Maximum Single-Wheel Rise and Fall	22.4 in
Front	Fixed
Rear	Oscillating ±13°
Brakes
Brakes	Meet SAE ISO 3450:1996
Cab
Cab - ROPS/FOPS	Meets SAE and ISO standards
Sound Performance	Meets ANSI, SAE and ISO standards
Steering
Steering	Meets SAE and ISO standards
Total Steering Angle	86 Degrees
Loader Hydraulic System
Main Hydraulic System Output at 2010 rpm and	130 gal/min
Relief Valve Setting	5075 psi
Cylinders, Double Acting: Lift, Bore and Stro	220 × 911 mm 8.7 × 35.9 in
Cylinder, Double Acting: Tilt, Bore and Strok	220 × 1770 mm 8.7 × 69.7
Pilot System, Gear-Type Pump Output at 2010 r	20.1 gal/min
Relief Valve Setting (low idle)	348.1 psi

POWER TRAIN

Brakes, full hydraulic, enclosed, wet multiple disc service

Case drain filters

Demand fan

Engine, Cat® C18 with ACERT® Technology

ATTAC and ADEM

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

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)

Radio ready for (entertainment) includes antenna, speakers and converter (12-volt, 10-15 amp)

12-volt power port for mobile phone or laptop connection

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

Engine coolant temperature

Fuel level

Hydraulic oil temperature

Speedometer/tachometer

Transmission oil temperature

Instrumentation, warning indicators:

Axle/brake oil temperature (front/rear)

Brake oil pressure

Electrical system, low voltage

Engine intake/combustion air temperature

Engine oil pressure

Engine overspeed

Fuel pressure

Hydraulic oil filter status

Parking brake status

Transmission filter status

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

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

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

AutoLube

Axle oil coolers

Block Handler configuration (Custom)

Buckets

Bulk Loader configuration (Custom)

Directional lights

Engine brake

Extended Life Coolant

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