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.
Engine Power - ISO 14396:2002 580 hp
Operating Weight 116362 lb
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Engine Model Cat® C18
Bore 5.7in
Displacement 1105in³
Engine Model Cat® C18
Engine Power - ISO 14396:2002 580hp
Gross Power - SAE J1995:2014 588hp
Net Power - SAE J1349:2011 538hp
Note (1) Two engine emissions options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
Note (2) Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.
Peak Power Speed 1,500 rpm
Peak Torque - 1,200 rpm 2230lbf·ft
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
Rated Payload - Loose Material 16t
Rated Payload - Quarry Face 12.5t
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 or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system con
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
Machine Sound Power Level (ISO 6395:2008) 109dB(A)
Machine Sound Power Level (ISO 6395:2008)** 109dB(A)
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives”
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701
Note (3) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (4) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (5) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Operator Sound Pressure Level (ISO 6396:2008) 72dB(A)
Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)
Machine Sound Power Level (ISO 6395:2008) 110dB(A)
Machine Sound Power Level (ISO 6395:2008)** 110dB(A)
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives”
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701
Note (3) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (4) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (5) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Operator Sound Pressure Level (ISO 6396:2008) 72dB(A)
Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)
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 non-road Tier 4 Final/Stage V diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: – 20% biodiesel FAME (fatty acid methyl ester)*
Transmission 16gal (US)
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
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
Auxiliary 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 / falling objects 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
– Powertrain oil temperature
Light, cab, dome
Lunchbox, beverage holders
CB radio-ready
Mirrors, rearview (externally mounted)
Rimpull Control System (RCS)
Seat, Deluxe
Seat belt minder
Seat belt, retractable, 76 mm (3 in) wide
Steering and Transmission Integrated Control (STIC™) system
UV glass
Virtual gear indicator
Vital Information Management System (VIMS™) with Graphical Information Display: External Data Port
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 Mechanically Actuated Electronic Unit Injection (MEUI™) diesel, turbocharged/aftercooled
Ground level engine shutdown switch
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 (CEM)
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)
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
Aggregate Handler
Load and Carry
Millyard
