New | 988K Millyard Arrangement

Introduced in 1963, the 988 has been the industry leader for 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 988K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency. The 988K Millyard Arrangement is designed to meet the demands of millyard applications. The features of the 988K Millyard work together to provide a durable and reliable machine to meet the needs of the modern millyard.

Net Power541 HP
Engine ModelCat® C18 ACERT™
Net Power - SAE J1349541 HP
Bore5.7 in
Stroke7.2 in
Displacement1105 in³
Torque Rise58 %
Rated Speed1,700 rpm
EmissionsU.S. EPA Tier 4 Final/EU Stage IV Technology or Tier 2 Equivalent
Gross - ISO 14396580 HP
Peak Power Speed1,500 rpm
Peak Power Speed - 1,500 rpm - Gross - ISO 14396580 HP
Peak Power Speed - 1,500 rpm - Gross - SAE J1995588 HP
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349541 HP
Peak Torque - 1,200 rpm2104 lb/ft
Fork End Area69 ft²
Operating Specifications
Operating Weight139920 lb
Tipping Load - Articulated 37°68005 lb
Tipping Load - Straight78115 lb
Transmission TypeCat planetary power shift
Forward - 14 mile/h
Forward - 27.2 mile/h
Forward - 312.7 mile/h
Forward - 421.6 mile/h
Reverse - 14.7 mile/h
Reverse - 28.3 mile/h
Reverse - 314.4 mile/h
Direct Drive - Forward 1Lock-up disabled
Direct Drive - Forward 27.8 mile/h
Direct Drive - Forward 313.9 mile/h
Direct Drive - Forward 424.4 mile/h
Direct Drive - Reverse 15 mile/h
Direct Drive - Reverse 28.9 mile/h
Direct Drive - Reverse 315.8 mile/h
Hydraulic System - Lift/Tilt
Cylinders, Double Acting - Lift, Bore and Stroke235 mm × 976 mm (9.25 in × 38.4 in)
Cylinders, Double Acting - Tilt, Bore and Stroke292 mm × 671 mm (11.5 in × 26.4 in)
Lift/Tilt SystemVariable displacement piston
Maximum Flow13.7 gal/min
Maximum Flow at 1,400-1,860 rpm153 gal/min
Pilot SystemVariable displacement piston
Relief Valve Setting580 psi
Lift/Tilt System - CircuitEH- Positive Flow Control, Flow Sharing
Relief Valve Setting - Lift/Tilt4641 psi
Service Refill Capacities
Fuel Tank188 gal (US)
Cooling System31.7 gal (US)
Crankcase15.9 gal (US)
Transmission31.7 gal (US)
Differential - Final Drives - Front49.1 gal (US)
Differential - Final Drives - Rear49.1 gal (US)
Hydraulic System - Tank Only63.4 gal (US)
Diesel Exhaust Fluid Tank8.7 gal (US)
Hydraulic System Factory Fill125.5 gal (US)
Dimensions - Millyard Linkage
Dump Angle at Maximum Lift39.4 °
Fork Height at Maximum Lift15.3 ft
Fork Height with Level Arms8.1 ft
Fork Top Clamp Opening12.3 ft
Front Axle Centerline to Fork Tip15.6 ft
Ground to Bumper Clearance3.1 ft
Ground to Center of Front Axle3.2 ft
Ground to Lower Hitch Clearance1.9 ft
Ground to Top of Exhaust Stacks13.8 ft
Ground to Top of Hood10.9 ft
Ground to Top of ROPS13.8 ft
Hinge Pin Height at Maximum Lift16.1 ft
Maximum Overall Length41 ft
Rear Axle - Centerline to Bumper10.5 ft
Wheel Base14.9 ft
Oscillation Angle13°
BrakesSAE J1473 OCT90, ISO 3450:1992
Hydraulic System - Steering
Steering System - CircuitPilot, load sensing
Steering System - PumpPiston, variable displacement
Relief Valve Setting - Steering4351 psi
Maximum Flow71.3 gal/min
Steering Cycle Times - High Idle3.4 s
Steering Cycle Times - Low Idle5.6 s
Total Steering Angle74 °
Sound Performance - Standard
Machine Sound Level (ISO 6395)111 dB(A)
Operator Sound Level (ISO 6396)71 dB(A)
Sound Performance - Suppression
Machine Sound Level (ISO 6395)109 dB(A)
Operator Sound Level (ISO 6396)70 dB(A)
  • Efficiency
  • Structures
  • Power Train
  • Hydraulics
  • Operator Station
  • Technology Solutions
  • Serviceability
  • Customer Support
  • Safety
  • Sustainability
  • Versatility

Standard Equipment

  • 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
  • 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
  • Mirrors, rearview (externally mounted)
  • Rimpull Control System
  • Seat, Cat Comfort (cloth), air suspension, six-way adjustable
  • Seat belt, retractable, 76 mm (3 in) wide
  • STIC Control System
  • UV glass
  • Transmission 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
  • Swing out radiator system with 6 fpi radiator cores
  • Auto-reversing fan with adjustable controls and manual cycle
  • Hinged, perforated side doors
  • Brakes, oil-cooled, multi-disc, service/secondary
  • Case drain screens
  • Crankcase guard
  • Electro hydraulic parking brake
  • Engine, C18 MEUI diesel, turbocharged/aftercooled
  • Ground level engine shutoff
  • Turbine precleaner, engine air intake
  • Radiator, Next Generation Modular (NGMR)
  • Starting aid, ether, automatic
  • Throttle lock, electronic
  • Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
  • Transmission, planetary powershift, 4F/3R electronic control
  • 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, 731 L (188 gal)
  • Hitch, drawbar with pin
  • Hoses, Cat XT™
  • Hydraulic, steering and brake filtration/screening system
  • Cat Clean Emission Module
  • Oil sampling valves
  • Premixed 50% 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

  • -50° C (-58° F) antifreeze
  • Engine oil change system, high speed, Wiggins
  • Engine block heater 120V or 240V
  • High ambient cooling - software
  • Cab precleaner
  • AM/FM/CD/MP3 radio
  • Satellite Sirius radio with bluetooth
  • LED warning strobe
  • CB radio ready
  • Window pull down visor
  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)






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