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Overview

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 990 brings all new levels of performance, safety, operator comfort and efficiency.

Key Features

More Comfort. More Performance. More Versatility.

UP TO 54% BETTER FUEL EFFICIENCY

Move more material with less fuel using economy mode

UP TO 10% LOWER MAINTENANCE COST

Make regular maintenance more convenient with grouped service points

UP TO 10% MORE PRODUCTIVITY

Deliver more productivity in most truck loading applications while using performance series buckets with increased capacities

Specifications

Engine Model C27 Cat®
Rated Speed 1,800/min
Engine Power - ISO 14396 752 hp
Gross Power - SAE J1995:2014 766 hp
Net Power - SAE J1349 - Standard Ambient 699 hp
Net Power - SAE J1349 - High Ambient 648 hp
Bore 5.4 in
Stroke 6 in
Displacement 1649.5 in³
Peak Torque - 1,200 rpm 2624 lb/ft
Torque Rise 18 %
Emissions U.S. EPA TIer 4 Final and EU Stage V emission standards or U.S. EPA Tier 2 and EU Stage II equivalent
Transmission Type Cat planetary power shift
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.
Operating Weight 178517 lb
Rated Payload - Standard 17.5 ton (US)
Rated Payload - High Lift 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
Lift/Tilt System - Circuit Positive flow control
Lift/Tilt System Variable displacement piston
Maximum Flow at 1,800 rpm (1) 240 gal/min
Cylinders, Double Acting - Lift, Bore and Stroke 235 mm × 1287 mm (9.3 in × 50.7 in)
Cylinders, Double Acting - Tilt, Bore and Stroke 292.1 mm × 820 mm (11.5 in × 32.3 in)
Pilot System Open loop and pressure reducing
Relief Valve Setting - Main 507 psi
Relief Valve Setting - Lift/Tilt 4786 psi
Rack Back 4.3 s
Raise 8.2 s
Dump 2.9 s
Lower 3.7 s
Lower Float Down 3.6 s
Total Hydraulic Cycle Time - Empty Bucket 13.8 s
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement
Maximum Flow at 1,400 rpm 96.2 gal/min
Relief Valve Setting - Steering 5004 psi
Total Steering Angle 70°
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.7 kg of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons).
Front Fixed
Rear Trunnion
Oscillation Angle 8.5°
Brakes ISO 3450: 2011
Fuel Tank 294.3 gal (US)
Cooling System 54.9 gal (US)
Engine Crankcase 20 gal (US)
Transmission 29.1 gal (US)
Differential - Final Drives - Front 71.6 gal (US)
Differential - Final Drives - Rear 68.9 gal (US)
Hydraulic System Factory Fill 210 gal (US)
Hydraulic Tank - Implement and Hydraulic Fan 68.9 gal (US)
Hydraulic Tank - Steering and Braking 34.9 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.
Operator Sound Level (ISO 6396:2008) 65.5 dB(A)
Machine Sound Level (ISO 6395:2008) 115 dB(A)
Operator Sound Level (ISO 6396:2008) 65.5 dB(A)
Machine Sound Level (ISO 6395:2008) 113 dB(A)
Bucket Capacities 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³)

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