Cat® Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely at a lower cost per ton.
Introduced in 1963, the 988 has been the industry leader for over 60 years, built on a legacy of reliability, performance, safety, operator comfort, serviceability, and productivity. The 988 XE brings improved sustainability and maximum efficiency to this machine platform.
Net Power - SAE J1349:2011 538 hp
Operating Weight 116362 lb
Engine Model Cat® C18 ™
Engine Power - ISO 14396:2002 580 hp
Bore 5.7in
Displacement 1105in³
Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014
Engine Model Cat® C18 ™
Engine Power - ISO 14396:2002 580hp
Gross Power - SAE J1995:2014 588hp
Net Power - SAE J1349:2011 538hp
Peak Power Speed 1,500 rpm
Peak Torque - 1,200 rpm - SAE J1995 2230ft·lbf
Rated Speed 1,700 rpm
Stroke 7.2in
Torque Rise 58%
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Operating Weight 116362lb
Operating Weight - High Lift 119618lb
Operating Weight - Standard 116362lb
Rated Payload - Loose Material (Standard) 16ton (US)
Rated Payload - Standard (Quarry Face) 12.5ton (US)
Forward 1 (virtual) 4.3mile/h
Forward 2 (virtual) 7mile/h
Forward 3 (virtual) 13.8mile/h
Forward 4 (virtual) 20mile/h
Reverse 1 (virtual) 4.3mile/h
Reverse 2 (virtual) 7mile/h
Reverse 3 (virtual) 17.5mile/h
Transmission Type Cat switched reluctance electric drive
Lift Cylinder - Bore 8.7in
Lift Cylinder - Stroke 41.3in
Lift/Tilt System - Circuit EH-Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump Variable displacement piston
Maximum Flow at 1,400-1,600 rpm 153gal/min
Relief Valve Setting - Lift/Tilt 4757psi
Tilt Cylinder - Bore 8.7in
Tilt Cylinder - Stroke 27in
Dump 2.2s
Lower Float Down 3.5s
Rack Back 4.5s
Raise 8s
Total Hydraulic Cycle Time 18.2s
Maximum Flow at 1,400-1,600 rpm 71.3gal/min
Steering Cut Off Pressure 4351psi
Steering Cycle Times - High Idle 3.4s
Steering Cycle Times - Low Idle 5.6s
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement
Total Steering Angle 86°
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
Front Fixed
Oscillation Angle 13°
Rear Trunnion
Brakes ISO 3450:2011
ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Cooling System - Jacket Water 30gal (US)
Cooling Systems - Power Train 8gal (US)
Diesel Exhaust Fluid Tank 8.7gal (US)
Differential - Final Drives - Front 49gal (US)
Differential - Final Drives - Rear 49gal (US)
Engine Crankcase 16gal (US)
Fuel Tank 147gal (US)
Hydraulic System - Implement/Steering 126gal (US)
Note All nonroad Tier 4 Final/Stage V diesel engines are required to use: – The machine has the flexibility to run on either ultra-low-sulfur diesel fuel (ULSD with 15 ppm of sulfur or less). – Cat engines are compatible with the following renewable, alternati
Transmission 16gal (US)
Machine Sound Power Level (ISO 6395:2008) 109dB(A)
Operator Sound Pressure Level (ISO 6396:2008) 72dB(A)
Machine Sound Power Level (ISO 6395:2008) 110dB(A)
Operator Sound Pressure Level (ISO 6396:2008) 72dB(A)
B-Pin Height - Maximum Lift 18ft
Clearance at Maximum Lift 11.9ft
Front Axle Centerline to Bucket Tip 14ft
Ground to Bumper Clearance 3.1ft
Ground to Center of Axles 3.2ft
Ground to Lower Hitch Clearance 1.9ft
Ground to Top of Exhaust Stacks 14.8ft
Ground to Top of Hood 10.9ft
Ground to Top of ROPS 13.8ft
Maximum Overall Height - Bucket Raised 24.5ft
Maximum Overall Length 39.3ft
Note Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.
Reach - Maximum Lift 6.5ft
Rear Axle - Centerline to Bumper 10.5ft
Wheel Base 14.9ft
B-Pin Height - Maximum Lift 19.3ft
Clearance at Maximum Lift 13.3ft
Front Axle Centerline to Bucket Tip 15.3ft
Ground to Bumper Clearance 3.1ft
Ground to Center of Axles 3.2ft
Ground to Lower Hitch Clearance 1.9ft
Ground to Top of Exhaust Stacks 14.8ft
Ground to Top of Hood 10.9ft
Ground to Top of ROPS 13.8ft
Maximum Overall Height - Bucket Raised 25.8ft
Maximum Overall Length 40.7ft
Note Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.
Reach - Maximum Lift 6.8ft
Rear Axle - Centerline to Bumper 10.5ft
Wheel Base 14.9ft
Dump Angle at Maximum Lift -39.4°
Fork Height at Maximum Lift 17.2ft
Fork Height with Level Arms 8.1ft
Fork Top Clamp Opening 13.1ft
Front Axle Centerline to Fork Tip 16.5ft
Ground to Bumper Clearance 3.1ft
Ground to Center of Front Axle 3.2ft
Ground to Lower Hitch Clearance 1.9ft
Ground to Top of Exhaust Stacks 13.8ft
Ground to Top of Hood 10.9ft
Ground to Top of ROPS 13.8ft
Hinge Pin Height at Maximum Lift 16.1ft
Maximum Overall Length 41.9ft
Rear Axle - Centerline to Bumper 10.5ft
Wheel Base 14.9ft
Bucket Capacities 4.7-13 m3 (6.2-17 yd3)
Recyclability 96%
Standard and optional equipment may vary. Consult your Cat dealer for details.
Alarm, back-up
Alternator, single 150 amp
Batteries, dry
Converter, 10/15 amp, 24V to 12V
Lighting system (LED, work lights, access and service platform lighting)
Starting and charging system, 24V
Jump start receptacle
Starter lockout in bumper
Transmission lockout in bumper
Hazardous voltage lamp
Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
Air conditioner
Cat Vision, rear vision camera system
Cab, sound suppressed and pressurized, integrated rollover protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12‑volt 5-amp) and power port
Controls, lift and tilt function
Heater, defroster
Horn, electric
Instrumentation, gauges
– Coolant temperature
– Engine hour meter
– Hydraulic oil temperature
– Power train oil temperature
Light, cab, dome
Lunchbox, beverage holders
CB radio-ready
Mirrors, rearview (externally mounted)
Rimpull Control System
Seat, Deluxe
Seat belt minder
Seat belt, retractable, 76 mm (3 in) wide
STIC Control System
UV glass
Virtual gear indicator
Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
Wet-Arm wipers/washers (front and rear)
– Intermittent front and rear wipers
Lights, directional
Brakes, oil-cooled, multi-disc, service/secondary
Case drain screens
Electro hydraulic parking brake
Engine, C18 MEUI diesel, turbocharged/aftercooled
Ground level engine shutoff
Turbine precleaner, engine air intake
Radiator, Aluminum Modular Radiator (AMR)
Starting aid, ether, automatic
Throttle lock, electronic
Manual switch and automatic fuel priming
Cat Production Measurement ready
Cat switched reluctance (SR) generator/pump drive
Cat switched reluctance (SR) drive motor
Cat Integrated Powered Electronics
Automatic retarding controls
Automatic bucket lift kickout/positioner
Base machine price includes a rim allowance
Hydraulically driven demand fan
Couplings, Cat O-ring face seals
Doors, service access (locking)
Ecology drains for engine, radiator, hydraulic tank
Fuel tank, 555 L (147 gal)
Hitch, drawbar with pin
Hoses, Cat XT™
Hydraulic, steering and brake filtration/screening system
Cat Clean Emission Module
Oil sampling valves
Premixed 50 percent concentration of extended life coolant with freeze protection to –34° C (–29° F)
Rear access to cab and service platform
Steering, load sensing
Toe kicks
Vandalism protection caplocks
Standard and optional equipment may vary. Consult your Cat dealer for details.
–50° C (–58° F) antifreeze
Engine oil change system, high speed, Wiggins
Engine block heater 120V or 240V
High ambient cooling – software
Cat Production Measurement
Crankcase guard
Engine brake, software enabled attachment (SEA)
Load and Carry
Millyard
Aggregate Handler
Cab precleaner
Cat Detect, object detection system
Cat Production Measurement
Radio, AM/FM/CD/MP3 Bluetooth® with Satellite SiriusXM
LED warning strobe
Window pull down visor
Handrail mounted mirrors
Front and rear roading fenders
Fast fill fuel system (Shaw-Aero)
Cold Weather Package: Additional Starter and 2 Batteries, Engine Block Heater 120V or 240V, Heated Fuel Lines
Engine Compartment Lights
Autolube with Auto shutoff
High Performance LED Lighting
Wheel Chocks
Operator Coaching
Tire Pressure Monitoring System
Autodig, Tire Slip Prevention, Auto Set Tires, and Lift Stall Prevention
Additional Counterweight
