990K WHEEL LOADER
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 mines, quarries and industrial applications around the world. The 990K brings all new levels of performance, safety, operator comfort and efficiency.
SPECIFICATIONS
Net Power521.0 kW
Engine ModelCat® C27 ACERT™
Net Power – SAE J1349521.0 kW


BENEFITS AND FEATURES
engine
Net Power521.0 kW
Engine ModelCat® C27 ACERT™
Net Power – SAE J1349521.0 kW
Bore137.2 mm
Stroke152.4 mm
Displacement27.03 L
Torque Rise18.0 %
Rated Speed1,800 rpm
EmissionsU.S. EPA Tier 4 Final OR Tier 2 Equivalent
Gross (ISO 14396)561.0 kW
Peak Torque @ 1,200 rpm3557.0 N·m
Rated Speed: Gross (ISO 14396)561.0 kW
Rated Speed: Gross (SAE J1995)571.0 kW
Rated Speed: Net Power – SAE J1349 (High Ambient)483.0 kW
Rated Speed: Net Power – SAE J1349 (Standard Ambient)521.0 kW


operating specifications
Operating Weight80974.0 kg
Rated Payload15.9 tonnes
Rated Payload – Standard15.9 tonnes
Bucket Capacity Range8.6 m3-10.0 m3 (11.25 yd3-13.0 yd3)
Cat Truck Match – Standard773-775
Cat Truck Match – High Lift775-777
Rated Payload – High Lift15.9 tonnes
buckets
Bucket Capacities7.4-14.9 m3 (9.7-19.5 yd3)
transmission
Transmission TypeCat planetary power shift
Forward 17.3 km/h
Forward 213.3 km/h
Forward 322.9 km/h
Reverse 17.9 km/h
Reverse 214.7 km/h
Reverse 324.9 km/h
Direct Drive - Forward 1Lock-up disabled
Direct Drive - Forward 213.7 km/h
Direct Drive - Forward 324.5 km/h
Direct Drive - Reverse 18.7 km/h
Direct Drive - Reverse 215.4 km/h
Direct Drive - Reverse 326.4 km/h
axles
FrontFixed
RearTrunnion
Oscillation Angle8.5°
hydraulic cycle time
Rack Back4.3 Seconds
Raise8.2 Seconds
Dump2.9 Seconds
Lower3.7 Seconds
Lower Float Down3.6 Seconds
Total Hydraulic Cycle Time (empty bucket)13.8 Seconds
hydraulic system – steering
Steering System – CircuitPilot, load sensing
Steering System – PumpPiston, variable displacement
Relief Valve Setting – Steering32000.0 kPa
Maximum Flow @ 1,400 rpm358.0 L/min
Total Steering Angle70°
service refill capacities
Fuel Tank1114.0 L
Cooling System208.0 L
Transmission110.0 L
Differentials and Final Drives – Front271.0 L
Differentials and Final Drives – Rear261.0 L
Engine Crankcase75.7 L
Hydraulic System Factory Fill795.0 L
Hydraulic Tank (Implement and Hydraulic Fan)261.0 L
Hydraulic Tank (Steering and Braking)132.0 L
sound performance – standard
Machine Sound Level (ISO 6395:2008)115.0 dB(A)
Operator Sound Level (ISO 6396:2008)69.0 dB(A)
hydraulic system – lifttilt
Cylinders, Double Acting: Lift, Bore and Stroke235 mm × 1287 mm (9.3 in × 50.7 in)
Cylinders, Double Acting: Tilt, Bore and Stroke292.1 mm × 820 mm (11.5 in × 32.3 in)
Lift/Tilt SystemVariable displacement piston
Maximum Flow at 1,800 rpm817.0 L/min
Maximum Flow at 1,800 rpm84.0 L/min
Pilot SystemOpen loop and pressure reducing
Relief Valve Setting3500.0 kPa
Lift/Tilt System – CircuitPositive flow control
Relief Valve Setting – Lift/Tilt33000.0 kPa
sound performance – suppression
Machine Sound Level (ISO 6395:2008)113.0 dB(A)
Operator Sound Level (ISO 6396:2008)69.0 dB(A)
brakes
BrakesSAE J1473 OCT90, ISO 3450:1992
BENEFITS AND FEATURES
990K STANDARD EQUIPMENT
- operator environment
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 – Lockup 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 – Lockup 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 Cat Production Measurement: – Wet-arm wipers/washers (front, rear and corner) intermittent front wiper - power train
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 only)
Demand fan
Engine Cat C27 ACERT
Fuel priming pump (electric)
Ground level engine shutoff, bumper
Mufflers (under hood) (Tier 2 equivalent 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) - electrical
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 - other
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 OPTIONS
- power train
–50° C (–58° F) antifreeze
Engine oil change system, high speed, Wiggins
Engine block heater 120V or 240V
High ambient cooling – software - operator environment
Cab precleaner
AM/FM/CD/MP3 radio
Satellite Sirius radio with Bluetooth
LED warning strobe
CB radio ready
Window sun shade - miscellaneous attachments
Front and rear roading fenders
Fast fill fuel system (Shaw-Aero)
Axle oscillation stop
Heavy duty cab mounts
MOTEUR
Move material more efficiently with improved power and control.
BENEFITS AND FEATURES
Steering and Transmission Integrated Control System (STIC™) Experience maximum responsiveness and control with STIC that combines directional selection, gear selection and steering into a single lever.
- Simple side-to-side motion turns machine right or left, minimizing operator movements.
- Easy to operate finger controlled gear selection.
- Smoother, faster cycles and less operator fatigue through the use of low effort integrated controls.
Cat Planetary Powershift Transmission Building your success begins with a best-in-class transmission designed specifically for mining applications
- Consistent, smooth shifting and efficiency through integrated electronic controls.
- Long life and reliability through heat treat gear and metallurgy.
- Three forward and three reverse speeds to match your application.
Cat C27 ACERT Engine Durability and efficiency at the heart of your 990K comes from the Cat C27 ACERT Engine. Optimum performance is built in through the use of a 12 cylinder, direct injection design.
- Optimized performance and quick engine response with an electronic control module.
- Reliable efficiency with complete control over injection timing, duration and pressure with Mechanically Actuated Electronic Unit Injection (MEUI™).
- Extended engine life and improved fuel efficiency with reduced rated speed.
- Available in two versions: one that meets Tier 4 Final emission standards, and another that meets emission standards equivalent to Tier 2 emission standards.
Impeller Clutch Torque Converter (ICTC) and Rimpull Control System (RCS) Lower your cost per ton utilizing advanced ICTC and RCS for modulated rimpull.
- Reduce tire slippage and wear by modulating rimpull from 100 to 25 percent while depressing left pedal. After 25 percent rimpull is achieved the left pedal applies the brake.
- Reduce the potential for wheel slippage without reducing hydraulic efficiency with RCS.
- Improve fuel efficiency in certain applications with our lock-up clutch torque converter providing direct drive.
Productivity enabling you to move more and make more.
BENEFITS AND FEATURES
Positive Flow Control Hydraulics Increase efficiency through our Positive Flow Control (PFC) Hydraulic System. PFC has concurrent pump and valve control. By optimizing pump control, hydraulic oil flow is proportionate to implement lever movement.
- Fast, productive cycles are enabled by the fully variable implement pump.
- Increase bucket feel and control through increased hydraulic response.
- Consistent performance and efficiency with lower system heat.
- Full hydraulic flow down to 1,600 engine rpm.
Electro Hydraulic Controls Operators increase productivity with our responsive implements feature.
- Operate comfortably through electronically controlled hydraulic cylinder stops.
- Handle easy-to-use soft detent controls.
- Conveniently set automatic implement kickouts from inside the cab.
Steering System Confident loader operation starts with precise machine control enabled by the 990K’s load sensing hydraulic steering system.
- Increase efficiency with our variable displacement piston pumps.
- Achieve precise positioning for easy loading in tight areas with 35 degrees of steering articulation.
- Enhance operator comfort with integrated steering and transmission control functions.
Filtration System Benefit from extended performance and reliability of your hydraulic system with our advanced filtration system.
- Case drain screens.
- Hydraulic oil cooler return filter.
- Pilot filter.
- Return screens inside hydraulic tank.
- Axle oil cooler screens if equipped.
Best-in-class operator comfort and ergonomics.
BENEFITS AND FEATURES
Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.
Entry and Exit Enter and exit the cab easily and safely with these newly designed, ergonomic features.
- Fold up STIC steer/armrest.
- Reduced access stairway angles.
- Standard stairway lighting.
Cat Comfort Series III Seat Enhance comfort and reduce operator fatigue with Cat Comfort Series III seat.
- Mid back design and extra thick, contoured cushions.
- Air suspension system.
- Easy-to-reach seat levers and controls for six way adjustments.
- Seat-mounted implement pod and STIC steer that moves with the seat.
- 76 mm (3 in) wide retractable seat belt.
- Optional heated and ventilated seats.
Control Panel Ergonomic placement of switches and Information display keep your operators comfortable all day every day.
- Large backlit membrane switches feature LED activation indicators.
- Switches feature ISO symbols for quick function identification.
- Two position rocker switch activates the electro hydraulic park brake.
Environment Your operator’s productivity is enhanced with our clean, comfortable cab environment.
- Experience reduced vibrations from isolation cab mounts and seat air suspension.
- Maintain desired cab temperature with automatic temperature controls.
- Pressurized cab with filtered air.
- Sound level reduced to a quiet 69 dB(A).
- Convenient floor storage tray/lunch box.
Best built for the toughest conditions.
BENEFITS AND FEATURES
Robust Structures Your bottom line is improved by highly durable structures that achieve multiple life cycles and withstand the toughest loading conditions.
- Full box-section rear frame resists torsional shock and twisting forces.
- Heavy-duty steering cylinder mounts efficiently transmit steering loads into the frame.
- Axle mounting has been optimized for increased structural integrity.
Lift Arms
- Excellent visibility to the bucket edges and work area through a Z-bar design.
- High load stresses are absorbed by the solid steel lift arms.
- Enhance strength in key pin areas through the use of one piece castings.
- Stress relieved lift arms increase durability and lengthen time to repair.
Front Linkage To ensure long life and reliability, the linkage pin joints feature a greased pin design with an auto lube system attachment available from the factory.
Delivering fuel efficiency you demand through integrated machine systems.
BENEFITS AND FEATURES
Cat C27 ACERT Engine The Cat C27 ACERT engine is built and tested to meet your most demanding applications while meeting Tier 4 Final OR Tier 2 Equivalent emission standards.
- Fully integrated electronic engine controls works in concert with the entire machine to make your fuel go farther.
- Use less fuel idling with Engine Idle Shutdown.
- Maximized durability with Delayed Engine Shutdown.
Cat Planetary Powershift Transmission Maximize your uptime with the proven planetary power shift transmission. Improved shift quality, component life and operator comfort with our electronic transmission controls.
Impeller Clutch Torque Converter (ICTC) Enable your operators to maximize efficiency by varying machine rimpull while putting more horsepower to hydraulics.
- Reduced tire wear
- Enables full throttle shifts for faster cycle times
- Provides smooth approach to the dump target for less spillage and faster cycle times.
Cat Torque Converter with Lock-up Clutch
- Eliminates TC losses while lowering system heat
- Improves travel speeds
- Reduces cycle times in load and carry operations
Economy Mode Enabling maximum productivity and efficiency, all day every day. The 990K systems work hard to save you fuel through advanced technologies. Utilizing On Demand Throttle, operators maintain normal operation with the left pedal and implements while the 990K manages the engine speed.
- Provides similar control and feel to our traditional throttle lock feature.
- Efficiency of manual throttle and the ergonomics of throttle lock.
Greater productivity through Integrated Electronic Systems.
BENEFITS AND FEATURES
Integrated electronics provide flexible levels of information to both the site and the operator. This integration creates a smart machine and more informed operator, maximizing the productivity of both.
Information Display We have worked hard to help our customers and operators perform at their best through our newly upgraded touch screen information display.
- Intuitive operation and easy navigation with our enhanced user interface.
- Decrease service time by keeping operators informed about machine systems.
- Quick on-the-go weighing with the Cat Production Measurement.
Cat Product Link™ Take the guesswork out of asset management with Product Link remote monitoring.
- Remote access to information through the easy-to-use VisionLink® interface.
- Maximize uptime by staying informed on machine systems and diagnostic codes.
- Track machine with utilization, fuel usage, and payload summaries.
- Stay up to date on machine location, service meter hours, and reporting status.
Vital Information Management System (VIMS™) Connect directly to the machine for access to a wide range of sensor information and enhanced machine data.
- Create productivity reports with payload and work cycle segmentation.
- Identify operator training needs through productivity data.
- Detailed data logging of machine parameters and diagnostic codes.
- Track machine sensor information with trend analysis and histograms to monitor machine health.
Enabling high uptime by reducing your service time.
BENEFITS AND FEATURES
We can help you succeed by ensuring your 990K has design features to reduce your downtime.
- Safe and convenient service with ground level or platform access and grouped service points.
- Swing-out doors on both sides of the engine compartment provide easy access to important daily service checks.
- Ecology drains for ease of service and prevention of spills.
- Reduce downtime with VIMS system notifications so your operators and technicians can resolve any problems before failure.
- Ground level access to transmission control valves.
Your Cat dealers know how to keep your machines productive.
BENEFITS AND FEATURES
Legendary Cat Dealer Support A valued partner, your Cat dealer is available whenever you need them.
- Preventive maintenance programs and guaranteed maintenance contracts.
- Best-in-class parts availability.
- Improve your efficiency with operator training.
- Genuine Cat Remanufactured parts.
Making your safety our priority.
BENEFITS AND FEATURES
We are constantly introducing features on our machines in an effort to enhance safety for the operators.
Machine Access
- Left and right hand stairs with 45 degree angle enhance safety for operators getting on and off the 990K.
- Continuous walkway with non-skid surfaces are designed into the service areas.
- Maintain three points of contact at all times through ground level or platform accessible service areas.
Visibility
- Optional heated mirrors ensure enhanced visibility for safe operation.
- Standard Cat Vision or optional Cat Detect with radar increase operator awareness around the machine.
- Optional HID or LED lights provide excellent workspace visibility.
- Optional cab mounted LED warning beacons.
Operator Environment
- Reduced vibrations to the operator with isolated cab mounts and seat mounted implement and steering controls.
- Low interior sound levels.
- Pressurized cab with filtered air.
- Safely train other operators in comfort with our standard training seat.
- Standard 76 mm (3 in) seat belts on the operator seat and the standard trainer seat.
Making sustainable progress possible.
BENEFITS AND FEATURES
Sustainable Benefits Sustainability is designed and built into our 990K’s features.
- Engine Idle Shutdown can help you save fuel by avoiding unnecessary idling.
- The 990K is built for multiple lives. To assist with maximizing machine life, Caterpillar provides a number of sustainable options such as our Reman and Certified Rebuild programs. In these programs, reused or remanufactured components can deliver cost savings of 40 to 70 percent, which lowers operating cost.
- Caterpillar offers retrofit packages to bring new features to older machines, maximizing your resource. And, when you go through the Cat Certified Rebuild program, these retrofit kits are part of the rebuild process.
Efficient loading/hauling system starts with a perfect match.
BENEFITS AND FEATURES
Efficient Combination For full truck payloads with minimum loading time, an efficient loading/hauling system starts with a perfect match. Cat wheel loaders are matched with Cat off-highway trucks to maximize volume of material moved at the lowest operating cost per ton. The 990K equipped with the standard linkage will pass match the 773 (54 tonnes/60 tons) in 3 passes and the 775 (64 tonnes/70 tons) in 4 passes. Equipped with a high lift linkage the 990K is capable of loading a 777 (91 tonnes/100 tons) in 6 passes.
Protect your investment.
BENEFITS AND FEATURES
Enhance the productivity of your loader and protect your investment in buckets with our Ground Engaging Tools (GET). Your knowledgeable Cat dealer will work with you to understand your application and needs for the GET that is best for you.
Performance Series Buckets Performance Series Buckets feature an optimized profile maximizing material retention and minimizing dig time, translating into significant productivity and fuel efficiency improvements. All 990K buckets are manufactured with the Performance Series design.
Rock Bucket Applications: Face loading tightly compacted pit materials.
General Purpose Bucket Applications: Loading loose, stockpiled material.
GET Options Multiple GET options are available to customize your 990K to your application, such as:
- Sidebar protectors.
- General duty and penetration tips.
- Standard and half arrow segments.
Save Time and Money by Working Smart.
BENEFITS AND FEATURES
Data from customer machines show Cat wheel loaders are among the most fuel efficient machines in the industry.
Several features contribute to this excellent fuel efficiency:
- Performance Series Buckets – Deliver faster fill times and better material retention, ultimately reducing cycle times while improving productivity and fuel efficiency.
- Positive Flow Control Hydraulics – Provides only the hydraulic flow required by the implement systems for improved fuel efficiency and greater rimpull.
- ACERT Engine – Advanced engine controls maximizes power and efficiency.
- Economy Mode – Featuring On Demand Throttle, Economy Mode optimizes power for maximum fuel savings with minimal impact on production.
- Engine Idle Shutdown – Automatic engine and electrical system shutdown conserves fuel.
- Lock up Torque Converter – Transfers more power to the ground and optimizes fuel efficiency in all applications.
Machine configuration, operator technique, and job site layout can impact fuel consumption.
- Machine Configuration – Select the correct work tool and tire type based on machine application. Ensure proper inflation pressures. Utilize the Economy Mode setting for maximum efficiency.
- Job Site Layout – Spot loading targets in the right position. Avoid traveling more than 1.5 tire revolutions during truck loading cycles. Reduce transport distance for load and carry cycles by optimizing job site layout.
- Loading Bucket – Load in first gear. Raise and tilt bucket quickly and do not use a “pumping” motion. Avoid lift lever detent and use impeller clutch.
- Loading Truck or Hopper – Do not raise the work tool any higher than necessary. Keep engine rpm low and unload in controlled manner.
- Idle – Set the parking brake to engage Engine Idle Management System.