New | 990K Wheel Loader Steel Mill Arrangement

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. The Cat 990 Wheel Loader has been a proven performer in steel mill applications where larger machines have typically been used. The 990K Steel Mill Arrangement brings all new levels of performance, safety, operator comfort and efficiency in pit digging and skull handling applications.

Net Power699 HP
Engine ModelCat® C27 ACERT™
Bore5.4 in
Stroke6 in
Displacement1649.5 in³
Torque Rise18 %
EmissionsU.S. EPA Tier 4 Final/Tier 2 Equivalent
Gross - ISO 14396752 HP
Net Power - SAE J1349699 HP
Peak Torque - 1,200 rpm2624 lb/ft
Rated Speed1800 r/min
Rated Speed - Gross - ISO 14396752 HP
Rated Speed - Gross - SAE J1995766 HP
Rated Speed - Net Power - SAE J1349 - High Ambient648 HP
Rated Speed - Net Power - SAE J1349 - Standard Ambient699 HP
Operating Specifications
Operating Weight204693 lb
Rated Payload17.5 t
Bucket Capacity Range8.6 m3-9.2 m3 (11.25 yd3-12.0 yd3)
Cat Truck Match - Standard773-775
Rated Payload - Standard17.5 t
Transmission TypeCat planetary power shift
Forward - 14.5 mile/h
Forward - 28.3 mile/h
Forward - 314.2 mile/h
Reverse - 14.9 mile/h
Reverse - 29.1 mile/h
Reverse - 315.5 mile/h
Direct Drive - Forward 1Lock-up disabled
Direct Drive - Forward 28.5 mile/h
Direct Drive - Forward 315.2 mile/h
Direct Drive - Reverse 15.4 mile/h
Direct Drive - Reverse 29.6 mile/h
Direct Drive - Reverse 316.4 mile/h
NoteTravel speeds based on Michelin 45/65R39 LD D2**L5 tires.
Hydraulic System - Lift/Tilt
Cylinders, Double Acting - Lift, Bore and Stroke254 mm × 1264 mm (10.0 in × 49.8 in)
Cylinders, Double Acting - Tilt, Bore and Stroke317.5 mm × 819 mm (12.5 in × 32.2 in)
Lift/Tilt SystemVariable displacement piston
Lift/Tilt System - CircuitPositive flow control
Maximum Flow at 1,800 rpm (1)22.2 gal/min
Maximum Flow at 1,800 rpm (2)216 gal/min
Pilot SystemOpen loop and pressure reducing
Relief Valve Setting507 psi
Relief Valve Setting - Lift/Tilt4786 psi
Service Refill Capacities
Fuel Tank294.3 gal (US)
Cooling System54.9 gal (US)
Transmission29.1 gal (US)
Differential - Final Drives - Front71.6 gal (US)
Differential - Final Drives - Rear68.9 gal (US)
Engine Crankcase20 gal (US)
Hydraulic System Factory Fill210 gal (US)
Hydraulic Tank - Implement and Hydraulic Fan68.9 gal (US)
Hydraulic Tank - Steering and Braking34.9 gal (US)
Bucket Capacities8.6-9.2 m3 (11.2-12.0 yd3)
Oscillation Angle8.5°
BrakesSAE J1473 OCT90, ISO 3450:1992
Hydraulic System - Steering
Maximum Flow at 1,400 rpm94.5 gal/min
Relief Valve Setting - Steering4641 psi
Steering System - CircuitPilot, load sensing
Steering System - PumpPiston, variable displacement
Total Steering Angle70°
Hydraulic Cycle Times
Raise9.4 s
Dump2.9 s
Lower3.7 s
Lower Float Down3.6 s
Rack Back4.8 s
Total Hydraulic Cycle Time - Empty Bucket15.9 s
Sound Performance - Standard
Machine Sound Level (ISO 6395:2008)115 dB(A)
Operator Sound Level (ISO 6396:2008)69 dB(A)
Sound Performance - Suppression
Machine Sound Level (ISO 6395:2008)113 dB(A)
Operator Sound Level (ISO 6396:2008)69 dB(A)
Dimensions - Standard Lift - Approximate
B-Pin Height - Maximum Lift19.2 ft
Clearance at Maximum Lift13.4 ft
Dump Angle at Maximum Lift47.4 degrees
Front Axle Centerline to Bucket Tip14.2 ft
Ground to Bumper Clearance3.5 ft
Ground to Center of Front Axle3.9 ft
Ground to Lower Hitch Clearance2 ft
Ground to Top of Exhaust Stacks16.6 ft
Ground to Top of Hood12.7 ft
Ground to Top of ROPS17.2 ft
Maximum Overall Height - Bucket Raised27 ft
Maximum Overall Length41.8 ft
Rack Angle at Maximum Lift63.7 degrees
Rack Back Angle - Carry48.8 degrees
Rack Back Angle - Ground Level40.4 degrees
Reach - Maximum Lift7.2 ft
Rear Axle - Centerline to Bumper12.5 ft
Wheel Base15.1 ft
  • Efficiency
  • Structures
  • Power Train
  • Hydraulics
  • Operator Station
  • Technology Solutions
  • Serviceability
  • Customer Support
  • Safety
  • Steel Mill Features
  • Buckets And Ground Engaging Tools
  • Operating Costs

Standard Equipment

  • Air conditioner and heater with automatic temperature control
  • Cab, sound-suppressed pressurized, protective structure (ROPS/FOPS), radio ready for (entertainment) includes antenna, speakers and converter (12V, 10-15 amp)
  • 12V power port for mobile phone or laptop connection
  • Camera, rear vision
  • Cigar lighter and ashtray
  • Coat hook
  • Electro-hydraulic tilt and lift controls (seat mounted)
  • Flip-up armrest
  • Heater and defroster
  • Horn, electric
  • Implement hydraulic lockout
  • Instrumentation, gauges: – Engine coolant temperature – Fuel level – Ground speed – Gear – Hydraulic oil temperature – Speedometer/tachometer – Torque converter temperature
  • Instrumentation, warning indicators: – Action alert system, three category – Automatic transmission model enable status – Brake malfunction – Bucket float status – Delayed engine shutdown status – Engine idle shutdown status – Engine malfunction – Fuel economy mode enable status – Hydraulic lockout – Lock-up clutch enable status – Low fuel level – Parking brake status – Rimpull control enable status – Seatbelt warning – Secondary steering (if equipped) – Throttle lock status – Transmission gear
  • Keypad, control with indicator lights: – Auto trans mode speed range – Auto/manual transmission mode – Fuel economy mode – Implement kickout – Lock-up clutch – Reduced rimpull – Throttle lock
  • Light, dome (cab)
  • Lunchbox and beverage holders
  • Mirrors, rearview (externally mounted)
  • Seat, Cat comfort (cloth) air suspension
  • Seat belt, retractable, 76 mm (3 in) wide
  • STIC control system with steering lock
  • Tinted glass
  • Trainer seat with lap belt
  • Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles, cycle timer, and integral Payload Control System (PCS): – Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
  • Brakes, full hydraulic, enclosed, oil-disc
  • Axle-shaft oil-disc service brake
  • Electro hydraulic parking brake
  • Case drain filters
  • Cat clean emission module (Tier 4 Final only)
  • Demand fan
  • Engine Cat C27 ACERT
  • Fuel priming pump (electric)
  • Ground level engine shutoff, bumper
  • Mufflers (under hood) (Tier 2 only)
  • Precleaner, engine air intake
  • Radiator, Aluminum Modular (AMR)
  • Separated cooling system
  • Starting aid, (ether) manual override
  • Throttle Lock
  • Torque Converter, Impeller Clutch with lock-up clutch feature and rimpull control system
  • Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R)
  • Alarm, back-up
  • Alternator, 150 amp
  • Batteries, maintenance free (2 – 1,400 CCA)
  • Converter, 10/15 amp, 24V to 12V
  • Deutsch component connectors
  • Electrical system, 24V
  • Electronic transmission control
  • Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
  • Starter, electric
  • Starter lockout in bumper
  • Starting receptacle for emergency start
  • Transmission lockout in bumper
  • Automatic bucket tilt/lift kickouts electronically adjustable from cab
  • Axle temperature sensor
  • Battery disconnect and jump start receptacle, bumper
  • Coupling, Caterpillar O-ring face seals
  • Economy mode with on demand throttle
  • Emergency platform egress
  • Engine, crankcase, 500 hour interval with CH4
  • Engine idle management features: – Auto idle kickdown – Delayed engine shutdown – Engine idle shutdown
  • Fenders, steel (front)
  • Guards, crankcase and power train
  • Grouped/labeled lube points
  • Hitch, drawbar with pin
  • Hoses, Cat XT
  • Oil sampling valves
  • Positive flow control hydraulic system
  • Product Link
  • Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission
  • Stairway, left and right rear access
  • Steering, load sensing
  • Toe kicks
  • Vandalism protection caplocks
  • Venturi stack
  • Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)

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 sun shade
  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)
  • Axle oscillation stop
  • Heavy duty cab mounts





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