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Ziegler CAT

Caterpillar

988K XE Wheel Loader

Net Power

541 HP

Operating Weight

116362 lb

Bucket Capacities

4.7-13 m3 (6.2-17 yd3)

Overview

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.

Photos

Videos

  • Cat 988K XE Electric Drive Wheel Loader: Introduction
  • Cat 988K XE: Electric Drive Wheel Loader Animation
  • Cat® 988K XE Wheel Loader: Getting the Job Done Efficiently – Feedback from the Field

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.

Specifications

  • Engine
    Spec Value
    Net Power 541 HP
    Engine Model Cat® C18 ™
    Bore 5.7 in
    Stroke 7.2 in
    Displacement 1105 in³
    Rated Speed 1,700 rpm
    Peak Torque @ (speed) - SAE J1995 2104 ft·lbf
    Net Power - SAE J1349 541 HP
    Torque Rise 58%
    Peak Power Speed - 1,500 rpm - Gross - ISO 14396 580 HP
    Emissions U.S. EPA Tier 4 Final/EU Stage IV
    Peak Power Speed - 1,500 rpm - Gross - SAE J1995 588 HP
    Gross Power - ISO 14396 580 HP
    Peak Power Speed 1,500 rpm
    Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 541 HP
  • Operating Specifications
    Spec Value
    Operating Weight 116362 lb
    Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
    Rated Payload - Standard (Loose Material) 16 t
    Rated Payload - High Lift (Loose Material) 16 t
    Rated Payload - Standard (Face Material) 12.5 t
    Rated Payload - High Lift (Face Material) 12.5 t
    Operating Weight - Standard 116362 lb
    Operating Weight - High Lift 119618 lb
  • Transmission
    Spec Value
    Transmission Type Cat switched reluctance electric drive
    Forward 4 (virtual) 20 mile/h
    Reverse 3 (virtual) 17.5 mile/h
    Forward 2 (virtual) 7 mile/h
    Reverse 2 (virtual) 7 mile/h
    Forward 3 (virtual) 13.8 mile/h
    Reverse 1 (virtual) 4.3 mile/h
    Forward 1 (virtual) 4.3 mile/h
  • Hydraulic System - Lift/Tilt
    Spec Value
    Lift Cylinder - Bore 8.7 in
    Lift/Tilt System - Pump Variable displacement piston
    Lift/Tilt System - Circuit EH-Positive Flow Control, Flow Sharing
    Maximum Flow at 1,400-1,600 rpm 153 gal/min
    Lift Cylinder - Stroke 41.3 in
    Relief Valve Setting - Lift/Tilt 4757 psi
    Tilt Cylinder - Bore 8.7 in
    Tilt Cylinder - Stroke 27 in
  • Service Refill Capacities
    Spec Value
    Fuel Tank 147 gal (US)
    Transmission 16 gal (US)
    Cooling System - Jacket Water 30 gal (US)
    Differential - Final Drives - Rear 49 gal (US)
    Cooling Systems - Power Train 8 gal (US)
    Differential - Final Drives - Front 49 gal (US)
    Engine Crankcase 16 gal (US)
    Diesel Exhaust Fluid Tank 8.7 gal (US)
    Hydraulic System - Implement/Steering 126 gal (US)
    Note All non-road Tier 4 Final/Stage IV 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) or up to B20 biodiesel when feedstock meeting ASTM D7467 specifications is blended with ULSD. – 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.
  • Buckets
    Spec Value
    Bucket Capacities 4.7-13 m3 (6.2-17 yd3)
  • Axles
    Spec Value
    Front Fixed
    Rear Trunnion
    Oscillation Angle 13°
  • Brakes
    Spec Value
    Brakes ISO 3450:2011
  • Hydraulic System - Steering
    Spec Value
    Steering Cycle Times - High Idle 3.4 s
    Total Steering Angle 86°
    Maximum Flow at 1,400-1,600 rpm 71.3 gal/min
    Steering Cycle Times - Low Idle 5.6 s
    Steering Cut Off Pressure 4351 psi
    Steering System - Circuit Pilot, load sensing
    Steering System - Pump Piston, variable displacement
    Steering ISO 5010:2007
  • Hydraulic Cycle Times
    Spec Value
    Rack Back 4.5 s
    Raise 8 s
    Lower Float Down 3.5 s
    Total Hydraulic Cycle Time 18.2 s
    Dump 2.2 s
  • Sound Performance - Tier 4 Final/Stage IV
    Spec Value
    Machine Sound Level (ISO 6395) 109 dB(A)
    Operator Sound Level (ISO 6396) 72 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
    Rear Axle - Centerline to Bumper 10.5 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.
    Maximum Overall Height - Bucket Raised 24.5 ft
    Ground to Top of ROPS 13.7 ft
    Ground to Top of Exhaust Stacks 14.8 ft
    Wheel Base 14.9 ft
    B-Pin Height - Maximum Lift 18 ft
    Reach - Maximum Lift 6.8 ft
    Maximum Overall Length 40 ft
    Ground to Bumper Clearance 3.1 ft
    Ground to Lower Hitch Clearance 1.9 ft
    Ground to Center of Axles 3.2 ft
    Front Axle Centerline to Bucket Tip 14.7 ft
    Clearance at Maximum Lift 11.3 ft
    Ground to Top of Hood 10.9 ft
  • Dimensions (Approximate) - High Lift
    Spec Value
    Ground to Lower Hitch Clearance 1.9 ft
    B-Pin Height - Maximum Lift 19.3 ft
    Rear Axle - Centerline to Bumper 10.5 ft
    Clearance at Maximum Lift 12.7 ft
    Ground to Bumper Clearance 3.1 ft
    Ground to Top of Hood 10.9 ft
    Front Axle Centerline to Bucket Tip 15.9 ft
    Ground to Top of Exhaust Stacks 14.8 ft
    Reach - Maximum Lift 7 ft
    Maximum Overall Length 41.3 ft
    Wheel Base 14.9 ft
    Ground to Top of ROPS 13.7 ft
    Ground to Center of Axles 3.2 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.
    Maximum Overall Height - Bucket Raised 25.8 ft
  • 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.
  • Operator's Cab
    Spec Value
    ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Standard Equipment

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 Detect 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

OTHER

  • 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

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

OPERATOR ENVIRONMENT

  • Cab precleaner
  • AM/FM/CD/MP3 radio
  • Satellite Sirius radio with Bluetooth®
  • LED warning strobe
  • Window pull down visor
  • Handrail mounted mirrors

MISCELLANEOUS ATTACHMENTS

  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)
  • Cold Weather Starting (extra starter plus two batteries)
  • Aggregate Handler
  • Tire Pressure Monitoring System