Chat with us, powered by LiveChat

Starting Small... Building Big! With Alban CAT Construction Equipment...

Learn More
988K Wheel Loader Specifications
Net Power 541.0 hp
Net Power 541 HP
Engine Model Cat® C18 ACERT™
Engine Model Cat® C18 ACERT™

Engine

Net Power
541.0 hp
Net Power
541 HP
Engine Model
Cat® C18 ACERT™
Engine Model
Cat® C18 ACERT™
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
1,700 rpm
Net Power – SAE J1349
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 - ISO 14396
580 HP
Peak Power Speed
1,500 rpm
Peak Power Speed - 1,500 rpm - Gross - ISO 14396
580 HP
Peak Power Speed - 1,500 rpm - Gross - SAE J1995
588 HP
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349
541 HP
Peak Torque - 1,200 rpm
2104 lb/ft
Emissions
U.S. EPA Tier 4 Final/EU Stage IV OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
Net Power - SAE J1349
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 - High Lift
12.5 tons
Rated Payload – Quarry Face
12.5 tons
Rated Payload – Loose Material
16 tons
Cat Truck Match - Standard
770-772
Cat Truck Match - High Lift
773-775
Rated Payload - Loose Material
16 t
Rated Payload - Quarry Face
12.5 t

Transmission

Transmission Type
Cat planetary power shift
Transmission Type
Cat planetary power shift
Forward 1
4.0 mph
Forward - 1
4 mile/h
Forward 2
7.2 mph
Forward - 2
7.2 mile/h
Forward 3
12.7 mph
Forward - 3
12.7 mile/h
Forward 4
21.6 mph
Forward - 4
21.6 mile/h
Reverse 1
4.7 mph
Reverse - 1
4.7 mile/h
Reverse 2
8.3 mph
Reverse - 2
8.3 mile/h
Reverse 3
14.4 mph
Reverse - 3
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 - Forward 1
Lock-up disabled
Direct Drive - Forward 3
13.9 mile/h
Direct Drive - Forward 4
24.4 mile/h
Direct Drive - Reverse 3
15.8 mile/h
Direct Drive - Forward 2
7.8 mile/h
Direct Drive - Reverse 1
5 mile/h
Direct Drive - Reverse 2
8.9 mile/h

Hydraulic System – Lift/Tilt

Cylinders, Double Acting: Lift, Bore and Stroke
210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting: Tilt, Bore and Stroke
269 mm × 685 mm (8.7 in × 27 in)
Maximum Flow at 1,400-1,860 rpm
153.0 gal/min
Pilot System
Variable displacement piston
Relief Valve Setting – Lift/Tilt
4757 psi

Hydraulic System - Lift/Tilt

Lift/Tilt System
Variable displacement piston
Maximum Flow
13.7 gal/min
Relief Valve Setting
551 psi
Cylinders, Double Acting - Lift, Bore and Stroke
210 mm × 1050 mm (8.7 in × 41.3 in)
Lift/Tilt System - Circuit
EH- Positive Flow Control, Flow Sharing
Maximum Flow at 1,400-1,860 rpm
153 gal/min
Cylinders, Double Acting - Tilt, Bore and Stroke
269 mm × 685 mm (8.7 in × 27 in)
Pilot System
Variable displacement piston
Relief Valve Setting - Lift/Tilt
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 (tank only)
63.4 gal
Hydraulic System - Tank Only
63.4 gal (US)
Differentials and Final Drives – Front
49.1 gal
Differentials and Final Drives – Rear
49.1 gal
Diesel Exhaust Fluid Tank (for Tier 4 Final/Stage IV only)
8.7 gal
Hydraulic System Factory Fill
125.5 gal (US)
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only)
8.7 gal (US)
Differential - Final Drives - Front
49.1 gal (US)
Differential - Final Drives - Rear
49.1 gal (US)
Coolant (Validated by Test Cell Fill Quantities)
33 gal (US)
Transmission - Validated by Test Cell Fill Quantities
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 OCT90, ISO 3450:1992

Hydraulic System – Steering

Steering System – Circuit
Pilot, load sensing
Steering System – Pump
Piston, variable displacement
Maximum Flow
71.3 gal/min
Steering Cycle Time (high idle)
3.4 sec
Steering Cycle Time (low idle)
5.6 sec
Total Steering Angle
86°

Hydraulic System - Steering

Relief Valve Setting - Steering
4351 psi
Steering Cycle Times - High Idle
3.4 s
Maximum Flow
71.3 gal/min
Steering Cycle Times - Low Idle
5.6 s
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
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 - Empty Bucket
18.2 s

Sound Performance – Tier 4 Final/Stage IV: Standard

Machine Sound Level (ISO 6395)
111 dB(A)
Operator Sound Level (ISO 6396)
72 dB(A)

Sound Performance - Tier 4 Final/Stage IV - Standard

Machine Sound Level (ISO 6395)
111 dB(A)
Operator Sound Level (ISO 6396)
72 dB(A)

Sound Performance – Tier 4 Final/Stage IV: Suppression

Machine Sound Level (ISO 6395)
109 dB(A)
Operator Sound Level (ISO 6396)
72 dB(A)

Sound Performance - Tier 4 Final/Stage IV: Suppression

Machine Sound Level (ISO 6395)
109 dB(A)
Operator Sound Level (ISO 6396)
72 dB(A)

Sound Performance – Tier 2 Equivalent/Stage II: Standard

Operator Sound Level (ISO 6396)
73 dB(A)

Sound Performance - Tier 2 Equivalent/Stage II: Standard

Machine Sound Level (ISO 6395)
112 dB(A)
Operator Sound Level ( ISO 6396)
73 dB(A)

Sound Performance - Tier 2 Equivalent/Stage II: Suppression

Operator Sound Level (ISO 6396)
72 dB(A)
Machine Sound Level (ISO 6395)
110 dB(A)
  • 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 ACERT 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
  • 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