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 50 years, built on a legacy of reliability, performance, safety, operator comfort, serviceability, and productivity. The 988K XE brings improved sustainability and maximum efficiency to this machine platform.
Caterpillar
988K XE Wheel Loader
Overview
Photos
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988K XE Large Wheel Loader -
988K XE Large Wheel Loader -
988K XE Large Wheel Loader -
988K XE Large Wheel Loader -
988K XE Large Wheel Loader -
988K XE Millyard Large Wheel Loader -
988K XE Large Wheel Loader Customer Benefits
Videos
360° View
Exterior
360° Exterior view. Double click on the image to zoom in on any area of the product.
Interior
360° Interior view. Double click on the image to zoom in on any area of the product.
Showroom
Virtual Product Tour. Double click on the hotspots to see in on any area of the product.
Specifications
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Engine
Spec Value Net Power - SAE J1349 538 HP Engine Model Cat® C18 ™ Engine Power - ISO 14396 580 HP Gross Power - SAE J1995 588 HP Rated Speed 1,700 rpm Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 Peak Power Speed 1,500 rpm Bore 5.7 in Stroke 7.2 in Displacement 1105 in³ Peak Torque - 1,200 rpm - SAE J1995 2230 ft·lbf Torque Rise 58% -
Operating Specifications
Spec Value Operating Weight 116362 lb Operating Weight - Standard 116362 lb Operating Weight - High Lift 119618 lb Rated Payload - Standard (Quarry Face) 12.5 ton (US) Rated Payload - Loose Material (Standard) 16 ton (US) Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3) -
Transmission
Spec Value Transmission Type Cat switched reluctance electric drive Forward 1 (virtual) 4.3 mile/h Forward 2 (virtual) 7 mile/h Forward 3 (virtual) 13.8 mile/h Forward 4 (virtual) 20 mile/h Reverse 1 (virtual) 4.3 mile/h Reverse 2 (virtual) 7 mile/h Reverse 3 (virtual) 17.5 mile/h -
Hydraulic System - Lift/Tilt
Spec Value 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 153 gal/min Relief Valve Setting - Lift/Tilt 4757 psi Lift Cylinder - Bore 8.7 in Lift Cylinder - Stroke 41.3 in Tilt Cylinder - Bore 8.7 in Tilt Cylinder - Stroke 27 in -
Hydraulic Cycle Times
Spec Value Rack Back 4.5 s Raise 8 s Dump 2.2 s Lower Float Down 3.5 s Total Hydraulic Cycle Time 18.2 s -
Hydraulic System - Steering
Spec Value Steering System - Circuit Pilot, load sensing Steering System - Pump Piston, variable displacement Maximum Flow at 1,400-1,600 rpm 71.3 gal/min Steering Cut Off Pressure 4351 psi Total Steering Angle 86° Steering Cycle Times - High Idle 3.4 s Steering Cycle Times - Low Idle 5.6 s -
Air Conditioning System
Spec Value 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. -
Axles
Spec Value Front Fixed Rear Trunnion Oscillation Angle 13° -
Brakes
Spec Value Brakes ISO 3450:2011 -
Operator's Cab
Spec Value ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards -
Service Refill Capacities
Spec Value Fuel Tank 147 gal (US) Cooling System - Jacket Water 30 gal (US) Cooling Systems - Power Train 8 gal (US) Engine Crankcase 16 gal (US) Diesel Exhaust Fluid Tank 8.7 gal (US) Transmission 16 gal (US) Differential - Final Drives - Front 49 gal (US) Differential - Final Drives - Rear 49 gal (US) Hydraulic System - Implement/Steering 126 gal (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, alternative, and biodiesel* fuels that reduce greenhouse gases: Up to B20 biodiesel (FAME) ** Up to 100% HVO and GTL renewable fuels * Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required. – Only use DEF that meets ISO 22241-1 standards. -
Sound Performance - Tier 4 Final/EU Stage V - Standard
Spec Value Operator Sound Level (ISO 6396) 72 dB(A) Machine Sound Level (ISO 6395) 109 dB(A) Note (1) The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. Note (2) 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. Note (3) The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. -
Dimensions (Approximate) - Standard Lift
Spec Value Ground to Top of ROPS 13.8 ft Ground to Top of Exhaust Stacks 14.8 ft Ground to Top of Hood 10.9 ft Ground to Bumper Clearance 3.1 ft Rear Axle - Centerline to Bumper 10.5 ft Front Axle Centerline to Bucket Tip 14 ft Wheel Base 14.9 ft Maximum Overall Length 39.3 ft Ground to Lower Hitch Clearance 1.9 ft Ground to Center of Axles 3.2 ft Clearance at Maximum Lift 11.9 ft B-Pin Height - Maximum Lift 18 ft Maximum Overall Height - Bucket Raised 24.5 ft Reach - Maximum Lift 6.5 ft 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. -
Dimensions (Approximate) - High Lift
Spec Value Ground to Top of ROPS 13.8 ft Ground to Top of Exhaust Stacks 14.8 ft Ground to Top of Hood 10.9 ft Ground to Bumper Clearance 3.1 ft Rear Axle - Centerline to Bumper 10.5 ft Front Axle Centerline to Bucket Tip 15.3 ft Wheel Base 14.9 ft Maximum Overall Length 40.7 ft Ground to Lower Hitch Clearance 1.9 ft Ground to Center of Axles 3.2 ft Clearance at Maximum Lift 13.3 ft B-Pin Height - Maximum Lift 19.3 ft Maximum Overall Height - Bucket Raised 25.8 ft Reach - Maximum Lift 6.8 ft 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. -
Buckets
Spec Value Bucket Capacities 4.7-13 m3 (6.2-17 yd3) -
Sustainability
Spec Value Recyclability 96%
Standard Equipment
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL
- Alarm, back-up
- Alternator, single 150 amp
- Batteries, dry
- Converter, 10/15 amp, 24V to 12V
- Lighting system (halogen, work lights, access and service platform lighting)
- Starting and charging system, 24V
- Starter emergency start receptacle
- Starter lockout in bumper
- Transmission lockout in bumper
- Hazardous voltage lamp
OPERATOR ENVIRONMENT
- 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, Cat Comfort Series III, heated and ventilated, air suspension, six-way adjustable
- 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
POWER TRAIN
- 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 SR Generator/Pump Drive
- Cat SR Drive Motor
- Cat Integrated Powered Electronics
- Automatic retarding controls
ADDITIONAL EQUIPMENT
- 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
Optional Equipment
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
POWER TRAIN
- –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, SEA
Other Optional Configurations
- Aggregate Handler
- Millyard
- Load and Carry
OPERATOR ENVIRONMENT
- Cat Detect, object detection system
- Cab precleaner
- AM/FM/CD/MP3 radio
- Satellite Sirius radio with Bluetooth®
- LED warning strobe
- Window pull down visor
- Handrail mounted mirrors
ADDITIONAL EQUIPMENT
- Front and rear roading fenders
- Fast fill fuel system (Shaw-Aero)
- Cold Weather Starting (extra starter plus two batteries)
- Aggregate Handler
- Autodig feature, Tire Slip Prevention
- Wheel Chocks
- EZ Clean cooling system
- Autodig features, Auto Set Tires & Lift Stall Prevention
- Autolube with Auto shutoff
- Tire Pressure Monitoring System
- Load and Carry Counterweight