990K Steel Mill Arrangement


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990K Steel Mill Arrangement 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)

990K Steel Mill Arrangement 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


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 Power 699.0 hp 521.0 kW Less
Engine Model Cat® C27 ACERT™ Cat® C27 ACERT™ Less
Bore 5.4 in 137.2 mm Less
Stroke 6.0 in 152.4 mm Less
Displacement 1649.5 in3 27.03 L Less
Torque Rise 18.0 % 18.0 % Less
Net Power – SAE J1349 699.0 hp 521.0 kW Less
Rated Speed 1800.0 rpm 1800.0 rpm Less
Emissions U.S. EPA Tier 4 Final/Tier 2 Equivalent U.S. EPA Tier 4 Final/Tier 2 Equivalent Less
Gross (ISO 14396) 752.0 hp 561.0 kW Less
Rated Speed: Gross (ISO 14396) 752.0 hp 561.0 kW Less
Rated Speed: Gross (SAE J1995) 766.0 hp 571.0 kW Less
Rated Speed: Net Power – SAE J1349 (Standard Ambient) 699.0 hp 521.0 kW Less
Rated Speed: Net Power – SAE J1349 (High Ambient) 648.0 hp 483.0 kW Less
Peak Torque @ 1,200 rpm 2624.0 lbf-ft 3557.0 N·m Less

Operating Specifications

Operating Weight 204693.0 lb 92848.0 kg Less
Rated Payload 17.5 tons 15.88 tonnes Less
Bucket Capacity Range 8.6 m3-9.2 m3 (11.25 yd3-12.0 yd3) 8.6 m3-9.2 m3 (11.25 yd3-12.0 yd3) Less
Rated Payload – Standard 17.5 tons 15.88 tonnes Less
Cat Truck Match – Standard 773-775 773-775 Less


Transmission Type Cat planetary power shift Cat planetary power shift Less
Forward 1 4.5 mph 7.3 km/h Less
Forward 2 8.3 mph 13.3 km/h Less
Forward 3 14.2 mph 22.9 km/h Less
Reverse 1 4.9 mph 7.9 km/h Less
Reverse 2 9.1 mph 14.7 km/h Less
Reverse 3 15.5 mph 24.9 km/h Less
Direct Drive Forward 1 Lock-up disabled Lock-up disabled Less
Direct Drive Forward 2 8.5 mph 13.7 km/h Less
Direct Drive Forward 3 15.2 mph 24.5 km/h Less
Direct Drive Reverse 1 5.4 mph 8.7 km/h Less
Direct Drive Reverse 2 9.6 mph 15.4 km/h Less
Direct Drive Reverse 3 16.4 mph 26.4 km/h Less
Note Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. Less

Hydraulic System – Lift/Tilt

Cylinders, Double Acting: Lift, Bore and Stroke 254 mm × 1264 mm (10.0 in × 49.8 in) 254 mm × 1264 mm (10.0 in × 49.8 in) Less
Cylinders, Double Acting: Tilt, Bore and Stroke 317.5 mm × 819 mm (12.5 in × 32.2 in) 317.5 mm × 819 mm (12.5 in × 32.2 in) Less
Lift/Tilt System Variable displacement piston Variable displacement piston Less
Maximum Flow at 1,800 rpm 22.2 gal/min 84.0 L/min Less
Maximum Flow at 1,800 rpm 216.0 gal/min 817.0 L/min Less
Pilot System Open loop and pressure reducing Open loop and pressure reducing Less
Relief Valve Setting – Lift/Tilt 4786.0 psi 33000.0 kPa Less
Lift/Tilt System – Circuit Positive flow control Positive flow control Less
Relief Valve Setting 507.0 psi 3500.0 kPa Less

Service Refill Capacities

Fuel Tank 294.3 gal 1114.0 L Less
Cooling System 54.9 gal 208.0 L Less
Transmission 29.1 gal 110.0 L Less
Engine Crankcase 20.0 gal 75.7 L Less
Differentials and Final Drives – Front 71.6 gal 271.0 L Less
Differentials and Final Drives – Rear 68.9 gal 261.0 L Less
Hydraulic System Factory Fill 210.0 gal 795.0 L Less
Hydraulic Tank (Implement and Hydraulic Fan) 68.9 gal 261.0 L Less
Hydraulic Tank (Steering and Braking) 34.9 gal 132.0 L Less


Bucket Capacities 8.6-9.2 m3 (11.2-12.0 yd3) 8.6-9.2 m3 (11.2-12.0 yd3) Less


Front Fixed Fixed Less
Rear Trunnion Trunnion Less
Oscillation Angle 8.5° 8.5° Less


Brakes SAE J1473 OCT90, ISO 3450:1992 SAE J1473 OCT90, ISO 3450:1992 Less

Hydraulic System – Steering

Steering System – Circuit Pilot, load sensing Pilot, load sensing Less
Steering System – Pump Piston, variable displacement Piston, variable displacement Less
Relief Valve Setting – Steering 4641.0 psi 32000.0 kPa Less
Maximum Flow @ 1,400 rpm 94.5 gal/min 358.0 L/min Less
Total Steering Angle 70° 70° Less

Hydraulic Cycle Time

Raise 9.4 Seconds 9.4 Seconds Less
Dump 2.9 Seconds 2.9 Seconds Less
Rack Back 4.8 Seconds 4.8 Seconds Less
Lower 3.7 Seconds 3.7 Seconds Less
Lower Float Down 3.6 Seconds 3.6 Seconds Less
Total Hydraulic Cycle Time (empty bucket) 15.9 Seconds 15.9 Seconds Less

Sound Performance – Standard

Operator Sound Level (ISO 6396:2008) 69.0 dB(A) 69.0 dB(A) Less
Machine Sound Level (ISO 6395:2008) 115.0 dB(A) 115.0 dB(A) Less

Sound Performance – Suppression

Operator Sound Level (ISO 6396:2008) 69.0 dB(A) 69.0 dB(A) Less
Machine Sound Level (ISO 6395:2008) 113.0 dB(A) 113.0 dB(A) Less

Dimensions – Standard Lift (Approximate)

Ground to Top of ROPS 17.2 ft 5240.0 mm Less
Ground to Top of Exhaust Stacks 16.6 ft 5049.0 mm Less
Ground to Top of Hood 12.7 ft 3862.0 mm Less
Ground to Bumper Clearance 3.5 ft 1079.0 mm Less
Rear Axle Centerline to Bumper 12.5 ft 3795.0 mm Less
Front Axle Centerline to Bucket Tip 14.2 ft 4338.0 mm Less
Wheelbase 15.1 ft 4600.0 mm Less
Maximum Overall Length 41.8 ft 12733.0 mm Less
Ground to Lower Hitch Clearance 2.0 ft 596.0 mm Less
Ground to Center of Front Axle 3.9 ft 1186.0 mm Less
Clearance at Maximum Lift 13.4 ft 4077.0 mm Less
Rack Back Angle at Ground Level 40.4 degrees 40.4 degrees Less
Rack Back Angle at Carry 48.8 degrees 48.8 degrees Less
B-Pin Height at Maximum Lift 19.2 ft 5867.0 mm Less
Maximum Overall Height, Bucket Raised 27.0 ft 8231.0 mm Less
Rack Angle at Maximum Lift 63.7 degrees 63.7 degrees Less
Dump Angle at Maximum Lift 47.4 degrees 47.4 degrees Less
Reach at Maximum Lift 7.2 ft 2193.0 mm Less


Delivering fuel efficiency you demand through integrated machine systems.


Best built for the toughest conditions.

Power Train

Move material more efficiently with improved power and control.


Productivity enabling you to move more and make more.

Operator Station

Best-in-class operator comfort and ergonomics.

Technology Solutions

Greater productivity through Integrated Electronic Systems.


Enabling high uptime by reducing your service time.

Customer Support

Your Cat dealers know how to keep your machines productive.


Making your safety our priority.

Steel Mill Features

Keep running in the toughest environment.

Buckets and Ground Engaging Tools

Protect your investment.

Operating Costs

Save Time and Money by Working Smart.

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