Piscataway Campus
732-885-5555
Bensalem Campus
877-726-7663

Large Wheel Loaders

988K Wheel Loader

  • Net Power
    541.0 hp
  • Net Power
    541 HP
  • Engine Model
    Cat® C18 ACERT™
  • Engine Model
    Cat® C18 ™
Engine
Net Power
541.0 hp
Net Power
541 HP
Engine Model
Cat® C18 ACERT™
Engine Model
Cat® C18 ™
Bore
5.7 in
Bore
5.7 in
Stroke
7.2 in
Stroke
7.2 in
Displacement
1105.0 in3
Displacement
1105 in³
Torque Rise
58.0 %
Torque Rise
58 %
Rated Speed
1,700 rpm
Rated Speed
1700/min
Net Power
541.0 hp
Emissions
U.S. EPA Tier 4 Final/EU Stage IV OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
Gross
580 HP
Peak Power Speed
1500/min
Peak Power Speed
580 HP
Peak Power Speed
588 HP
Peak Power Speed
541 HP
Peak Torque
2104 lb/ft
Emissions
U.S. EPA Tier 4 Final/EU Stage V OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
Net Power
541 HP
Operating Specifications
Operating Weight
112574.0 lb
Operating Weight
112574 lb
Bucket Capacity Range
4.7-13 m3 (6.2-17 yd3)
Rated Payload
12.5 tons
Rated Payload
12.5 tons
Rated Payload
16 tons
Cat Truck Match
770~772
Cat Truck Match
773~775
Rated Payload
16 t
Rated Payload
12.5 t
Transmission
Transmission Type
Cat planetary power shift
Transmission Type
Cat-Planetenlastschaltgetriebe
Forward 1
4.0 mph
Forward
4 mile/h
Forward 2
7.2 mph
Forward
7.2 mile/h
Forward 3
12.7 mph
Forward
12.7 mile/h
Forward 4
21.6 mph
Forward
21.6 mile/h
Reverse 1
4.7 mph
Reverse
4.7 mile/h
Reverse 2
8.3 mph
Reverse
8.3 mile/h
Reverse 3
14.4 mph
Reverse
14.4 mile/h
Direct Drive Forward 2
7.8 mph
Direct Drive Reverse 1
5.0 mph
Direct Drive Reverse 2
8.9 mph
Direct Drive
Lock-up disabled
Direct Drive
13.9 mile/h
Direct Drive
24.4 mile/h
Direct Drive
15.8 mile/h
Direct Drive
7.8 mile/h
Direct Drive
5 mile/h
Direct Drive
8.9 mile/h
Hydraulic System – Lift/Tilt
Cylinders
210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders
269 mm × 685 mm (8.7 in × 27 in)
Maximum Flow at 1
153.0 gal/min
Pilot System
Variable displacement piston
Relief Valve Setting
4757 psi
Hydraulic System - Lift/Tilt
Lift
Variable displacement piston
Maximum Flow
13.7 gal/min
Relief Valve Setting
551 psi
Cylinders
210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders
269 mm × 685 mm (8.7 in × 27 in)
Lift
EH- Positive Flow Control, Flow Sharing
Maximum Flow at 1
153 gal/min
Pilot System
Variable displacement piston
Relief Valve Setting
4757 psi
Service Refill Capacities
Fuel Tank
188.0 gal
Fuel Tank
188 gal (US)
Cooling System
31.7 gal
Cooling System
31.7 gal (US)
Crankcase
15.9 gal
Crankcase
15.9 gal (US)
Transmission
31.7 gal
Transmission
31.7 gal (US)
Hydraulic System
63.4 gal
Hydraulic System
63.4 gal (US)
Differentials and Final Drives
49.1 gal
Differentials and Final Drives
49.1 gal
Diesel Exhaust Fluid Tank
8.7 gal
Hydraulic System Factory Fill
125.5 gal (US)
Diesel Exhaust Fluid Tank
8.7 gal (US)
Differential
49.1 gal (US)
Differential
49.1 gal (US)
Coolant
33 gal (US)
Transmission
29 gal (US)
Buckets
Bucket Capacities
4.7-13 m3 (6.2-17 yd3)
Bucket Capacities
4.7-13 m3 (6.2-17 yd3)
Axles
Front
Fixed
Front
Fixed
Rear
Trunnion
Rear
Trunnion
Oscillation Angle
13°
Oscillation Angle
13 °
Brakes
Brakes
SAE J1473 OCT90, ISO 3450:1992
Brakes
SAE J1473 OKT90, ISO 3450:1992
Hydraulic System – Steering
Steering System
Pilot, load sensing
Steering System
Piston, variable displacement
Maximum Flow
71.3 gal/min
Steering Cycle Time
3.4 sec
Steering Cycle Time
5.6 sec
Total Steering Angle
86°
Hydraulic System - Steering
Relief Valve Setting
4351 psi
Maximum Flow
71.3 gal/min
Steering Cycle Times
3.4 s
Steering Cycle Times
5.6 s
Steering System
Pilot, load sensing
Steering System
Piston, variable displacement
Total Steering Angle
86 °
Hydraulic Cycle Time (1,400-1,860 rpm)
Dump
2.2 s
Lower Float Down
3.5 s
Rack Back
4.5 s
Raise
8 s
Total Hydraulic Cycle Time
18.2 s
Sound Performance – Tier 4 Final/Stage IV: Standard
Machine Sound Level
111 dB(A)
Operator Sound Level
72 dB(A)
Sound Performance - Tier 4 Final/Stage IV - Standard
Machine Sound Level
111 dB(A)
Operator Sound Level
72 dB(A)
Sound Performance – Tier 4 Final/Stage IV: Suppression
Machine Sound Level
109 dB(A)
Operator Sound Level
72 dB(A)
Sound Performance - Tier 4 Final/Stage IV: Suppression
Machine Sound Level
109 dB(A)
Operator Sound Level
72 dB(A)
Sound Performance – Tier 2 Equivalent/Stage II: Standard
Operator Sound Level
73 dB(A)
Sound Performance - Tier 2 Equivalent/Stage II: Standard
Machine Sound Level
112 dB(A)
Operator Sound Level
73 dB(A)
Sound Performance - Tier 2 Equivalent/Stage II: Suppression
Operator Sound Level
72 dB(A)
Machine Sound Level
110 dB(A)
  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • ELECTRICAL
    • Alarm, back-up
    • Alternator, single 150 amp
    • Batteries, dry
    • Converter, 10/15 amp, 24V to 12V
    • Lighting system (halogen, work lights, access and service platform lighting)
    • Starting and charging system, 24V
    • Starter emergency start receptacle
    • Starter lockout in bumper
    • Transmission lockout in bumper
  • OPERATOR ENVIRONMENT
    • Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
    • Air conditioner
    • Cat Detect Vision, rear vision camera system
    • Cab, sound suppressed and pressurized, integrated rollover protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12-volt 5-amp) and power port
    • Controls, lift and tilt function
    • Heater, defroster
    • Horn, electric
    • Instrumentation, gauges: – Coolant temperature – Engine hour meter – Hydraulic oil temperature – Power train oil temperature
    • Light, cab, dome
    • Lunchbox, beverage holders
    • Mirrors, rearview (externally mounted)
    • Rimpull Control System
    • Seat, Cat Comfort (cloth), air suspension, six-way adjustable
    • Seat belt minder
    • Seat belt, retractable, 76 mm (3 in) wide
    • STIC Control System
    • UV glass
    • Transmission gear indicator
    • Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
    • Wet-Arm wipers/washers (front and rear): – Intermittent front and rear wipers
    • Lights, directional
  • POWER TRAIN
    • Brakes, oil-cooled, multi-disc, service/secondary
    • Case drain screens
    • Crankcase guard
    • Electro hydraulic parking brake
    • Engine, C18 MEUI diesel, turbocharged/aftercooled
    • Ground level engine shutoff
    • Turbine precleaner, engine air intake
    • Radiator, Aluminum Modular Radiator (AMR)
    • Starting aid, ether, automatic
    • Throttle lock, electronic
    • Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
    • Transmission, planetary powershift, 4F/3R electronic control
    • Manual switch and automatic fuel priming
    • Cat Production Measurement ready
  • OTHER
    • Automatic bucket lift kickout/positioner
    • Base machine price includes a rim allowance
    • Hydraulically driven demand fan
    • Couplings, Cat O-ring face seals
    • Doors, service access (locking)
    • Ecology drains for engine, radiator, hydraulic tank
    • Fuel tank, 731 L (188 gal)
    • Hitch, drawbar with pin
    • Hoses, Cat XT
    • Hydraulic, steering and brake filtration/screening system
    • Cat Clean Emission Module
    • Oil sampling valves
    • Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
    • Rear access to cab and service platform
    • Steering, load sensing
    • Toe kicks
    • Vandalism protection caplocks
  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • POWER TRAIN
    • –50° C (–58° F) antifreeze
    • Engine oil change system, high speed, Wiggins
    • Engine block heater 120V or 240V
    • High ambient cooling – software
    • Cat Production Measurement
  • OPERATOR ENVIRONMENT
    • Cab precleaner
    • AM/FM/CD/MP3 radio
    • Satellite Sirius radio with bluetooth
    • LED warning strobe
    • CB radio ready
    • Window pull down visor
    • Handrail mounted mirrors
  • MISCELLANEOUS ATTACHMENTS
    • Front and rear roading fenders
    • Fast fill fuel system (Shaw-Aero)
    • Cold Weather Starting (extra starter plus two batteries)
    • Aggregate Handler