990K Wheel Loader
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.

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Rated Payload - Loose Material (Standard) 20 ton (US)
Rated Payload - Loose Material (High Lift) 22 ton (US)
Rated Payload - Standard (Quarry Face) 17.5 ton (US)
Rated Payload - High Lift (Quarry Face) 17.5 ton (US)
Bucket Capacity Range 8,6 m³ – 10,0 m³ (11,25 yd³ – 13,0 yd³)
Cat Truck Match - Standard 773-775
Cat Truck Match - High Lift 775-777
Operating Weight 178517 lb
Net Power 699 HP
Engine Model C27 Cat®
Bore 5.4 in
Stroke 6 in
Displacement 1649.5 in³
Torque Rise 18 %
Rated Speed 1,800/min
Rated Speed - Net Power - SAE J1349 - Standard Ambient 699 HP
Rated Speed - Net Power - SAE J1349 - High Ambient 648 HP
Rated Speed - Gross - SAE J1995 766 HP
Net Power - SAE J1349 699 HP
Emissions U.S. EPA Tier 4 Final OR Tier 2 Equivalent
Rated Speed - Gross - ISO 14396 752 HP
Gross - ISO 14396 752 HP
Peak Torque - 1,200 rpm 2624 lb/ft
Bucket Capacities 7,4-14,9 m³ (9,7-19,5 yd³)
Transmission Type Cat-Planetenlastschaltgetriebe
Forward - 1 4.5 mile/h
Forward - 2 8.3 mile/h
Forward - 3 14.2 mile/h
Reverse - 1 4.9 mile/h
Reverse - 2 9.1 mile/h
Reverse - 3 15.5 mile/h
Direct Drive - Forward 1 Lock-up disabled
Direct Drive - Forward 2 8.5 mile/h
Direct Drive - Forward 3 15.2 mile/h
Direct Drive - Reverse 1 5.4 mile/h
Direct Drive - Reverse 2 9.6 mile/h
Direct Drive - Reverse 3 16.4 mile/h
Note Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.
Front Fixed
Rear Trunnion
Oscillation Angle 8.5°
Raise 8.2 s
Dump 2.9 s
Lower Float Down 3.6 s
Lower 3.7 s
Total Hydraulic Cycle Time - Empty Bucket 13.8 s
Rack Back 4.3 s
Fuel Tank 294.3 gal (US)
Cooling System 54.9 gal (US)
Transmission 29.1 gal (US)
Hydraulic Tank - Implement and Hydraulic Fan 68.9 gal (US)
Differential - Final Drives - Rear 68.9 gal (US)
Differential - Final Drives - Front 71.6 gal (US)
Hydraulic Tank - Steering and Braking 34.9 gal (US)
Engine Crankcase 20 gal (US)
Hydraulic System Factory Fill 210 gal (US)
Note All nonroad U.S. EPA Tier 4 diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg) sulfur or less ULSD. B20 should meet ASTM D7467 specification (biodiesel blend stock should meet Cat biodiesel spec, ASTM D6751 or EN 14214. Cat DEO‑ULS™ or oils that meet the Cat ECF-3, API CJ‑4, and ACEA E9 specification are required. For further fluid specifications and guidelines, visit: http://parts.cat.com/cda/files/3244668/7/SEBU6250-19.pdf.
Pilot System Open loop and pressure reducing
Maximum Flow at 1,800 rpm (1) 216 gal/min
Cylinders, Double Acting - Lift, Bore and Stroke 235 mm × 1287 mm (9.3 in × 50.7 in)
Relief Valve Setting - Lift/Tilt 4786 psi
Maximum Flow at 1,800 rpm (2) 22.2 gal/min
Relief Valve Setting - Main 507 psi
Lift/Tilt System - Circuit Positive flow control
Cylinders, Double Acting - Tilt, Bore and Stroke 292.1 mm × 820 mm (11.5 in × 32.3 in)
Lift/Tilt System Variable displacement piston
Operator Sound Level (ISO 6396:2008) 69 dB(A)
Machine Sound Level (ISO 6395:2008) 113 dB(A)
Machine Sound Level (ISO 6395:2008) 115 dB(A)
Operator Sound Level (ISO 6396:2008) 69 dB(A)
Total Steering Angle 70°
Steering System - Pump Piston, variable displacement
Steering System - Circuit Pilot, load sensing
Steering ISO 5010: 2007
Relief Valve Setting - Steering 4641 psi
Maximum Flow at 1,400 rpm 94.5 gal/min
ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Brakes ISO 3450: 2011

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.

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.

Durability and efficiency at the heart of your 990K comes from the Cat C27 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

  • 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.

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.

The Cat C27 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.

Maximize your uptime with the proven planetary power shift transmission. Improved shift quality, component life and operator comfort with our electronic transmission controls.

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.

  • Eliminates TC losses while lowering system heat
  • Improves travel speeds
  • Reduces cycle times in load and carry operations

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.

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.

With the Product Link telematics system, you no longer have to rely on guesswork when managing your machine.

  • Access information through the easy-to-use VisionLink® website.
  • Optimization of the machine availability through constant accessible information about machine systems and diagnostic codes.
  • Track machine health with overviews of productivity, fuel consumption and payload.
  • Up-to-date information on machine location, operating hours and geopolitical jurisdiction.

Connect directly to the machine and access a wide range of sensor information and advanced machine data.

  • Generate productivity reports with payload and duty cycle segmentation.
  • Identify driver training needs based on productivity data.
  • Detailed data logging of machine parameters and diagnostic codes.
  • Monitor machine health by tracking machine sensor information with trend analysis and histograms.

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.

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.

  • 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.

  • 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.

  • 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.
  • Conveniently 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.

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.

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.

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.

Einsätze: Laden von stark verdichtetem Grubenmaterial aus der Abbauwand.

Applications: Loading loose, stockpiled material.

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.