988K

988K 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. Introduced in 1963, the 988 has been the industry leader for 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 988K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.

Category:
Add to Quote

POWERFUL EFFICIENCY

LONG TERM VALUE AND DURABILITY

PROVEN RELIABILITY

PERFORMANCE AND PRODUCTIVITY

OPERATOR COMFORT AND CONTROL

PRODUCTIVITY WITH TECHNOLOGY

SAVE ON SERVICE AND MAINTENANCE

TOP-TIER SERVICE AND SUPPORT

SAFETY FIRST

REDUCE ENVIRONMENTAL IMPACT

EFFICIENT EQUIPMENT MATCH

ATTACHMENTS TO MEET YOUR NEEDS

PERFORMANCE WITH LESS FUEL

Videos

Virtual Tours

Documents & Brochures

Standard Equipment

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

Additional information

Engine - Net Power

403.0 kW ( 541.0 HP )
Engine Model

Cat® C18 ™
Engine - Bore

145.0 mm ( 5.7 in )
Engine - Stroke

183.0 mm ( 7.2 in )
Engine - Displacement

18.1 l ( 1105.0 in³ )
Engine - Torque Rise

58.0 % ( 58.0 % )
Engine - Rated Speed

1700/min
Engine - Peak Torque - 1,200 rpm

2852.0 N·m ( 2104.0 lb/ft )
Engine - Net Power - SAE J1349

403.0 kW ( 541.0 HP )
Engine - Peak Power Speed

1500/min
Engine - Peak Power Speed - 1,500 rpm - Gross - ISO 14396

432.0 kW ( 580.0 HP )
Engine - Gross - ISO 14396

432.0 kW ( 580.0 HP )
Engine - Peak Power Speed - 1,500 rpm - Gross - SAE J1995

439.0 kW ( 588.0 HP )
Engine - Emissions

U.S. EPA Tier 4 Final/EU Stage V OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
Engine - Peak Power Speed - 1,500 rpm - Net Power - SAE J1349

403.0 kW ( 541.0 HP )
Operating Specifications - Operating Weight

51062.0 kg ( 112574.0 lb )
Operating Specifications - Bucket Capacity Range

4.7-13 m3 (6.2-17 yd3)
Operating Specifications - Rated Payload - Quarry Face

11.3 t ( 12.5 t )
Operating Specifications - Cat Truck Match - High Lift

773～775
Operating Specifications - Rated Payload - Loose Material

14.5 t ( 16 t )
Operating Specifications - Cat Truck Match - Standard

770～772
Transmission Type

Cat-Planetenlastschaltgetriebe
Transmission - Forward - 1

6.5 km/h ( 4.0 mile/h )
Transmission - Forward - 2

11.6 km/h ( 7.2 mile/h )
Transmission - Forward - 3

20.4 km/h ( 12.7 mile/h )
Transmission - Forward - 4

34.7 km/h ( 21.6 mile/h )
Transmission - Reverse - 1

7.5 km/h ( 4.7 mile/h )
Transmission - Reverse - 2

13.3 km/h ( 8.3 mile/h )
Transmission - Reverse - 3

23.2 km/h ( 14.4 mile/h )
Transmission - Direct Drive - Reverse 2

14.3 km/h ( 8.9 mile/h )
Transmission - Direct Drive - Reverse 3

25.5 km/h ( 15.8 mile/h )
Transmission - Direct Drive - Forward 2

12.5 km/h ( 7.8 mile/h )
Transmission - Direct Drive - Reverse 1

8.0 km/h ( 5.0 mile/h )
Transmission - Direct Drive - Forward 1

Lock-up disabled
Transmission - Direct Drive - Forward 3

22.3 km/h ( 13.9 mile/h )
Transmission - Direct Drive - Forward 4

39.3 km/h ( 24.4 mile/h )
Hydraulic System - Lift/Tilt - Maximum Flow

52.0 l/min ( 13.7 gal/min )
Hydraulic System - Lift/Tilt - Maximum Flow at 1,400-1,860 rpm

580.0 l/min ( 153.0 gal/min )
Hydraulic System - Lift/Tilt - Lift/Tilt System

Variable displacement piston
Hydraulic System - Lift/Tilt - Cylinders, Double Acting - Tilt, Bore and Stroke

269 mm × 685 mm (8.7 in × 27 in)
Hydraulic System - Lift/Tilt - Relief Valve Setting - Main

3800 kPa ( 551 psi )
Hydraulic System - Lift/Tilt - Relief Valve Setting - Lift/Tilt

32800 kPa ( 4757 psi )
Hydraulic System - Lift/Tilt - Pilot System

Variable displacement piston
Hydraulic System - Lift/Tilt - Cylinders, Double Acting - Lift, Bore and Stroke

210 mm × 1050 mm (8.7 in × 41.3 in)
Hydraulic System - Lift/Tilt - Lift/Tilt System - Circuit

EH- Positive Flow Control, Flow Sharing
Service Refill Capacities - Fuel Tank

712.0 l ( 188.0 gal (US) )
Service Refill Capacities - Cooling System

120.0 l ( 31.7 gal (US) )
Service Refill Capacities - Crankcase

60.0 l ( 15.9 gal (US) )
Service Refill Capacities - Transmission

120.0 l ( 31.7 gal (US) )
Service Refill Capacities - Hydraulic System - Tank Only

240.0 l ( 63.4 gal (US) )
Service Refill Capacities - Differential - Final Drives - Rear

186.0 l ( 49.1 gal (US) )
Service Refill Capacities - Hydraulic System Factory Fill

475.0 l ( 125.5 gal (US) )
Service Refill Capacities - Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only)

33.0 l ( 8.7 gal (US) )
Service Refill Capacities - Differential - Final Drives - Front

186.0 l ( 49.1 gal (US) )
Buckets - Bucket Capacities

4.7-13 m3 (6.2-17 yd3)
Axles - Front

Fixed
Axles - Rear

Trunnion
Axles - Oscillation Angle

13 °
Brakes

SAE J1473 OKT90, ISO 3450:1992
Hydraulic System - Steering - Steering System - Pump

Piston, variable displacement
Hydraulic System - Steering - Total Steering Angle

86 °
Hydraulic System - Steering - Maximum Flow

270.0 l/min ( 71.3 gal/min )
Hydraulic System - Steering - Relief Valve Setting - Steering

30000.0 kPa ( 4351.0 psi )
Hydraulic System - Steering - Steering Cycle Times - High Idle

3.4 s ( 3.4 s )
Hydraulic System - Steering - Steering System - Circuit

Pilot, load sensing
Hydraulic System - Steering - Steering Cycle Times - Low Idle

5.6 s ( 5.6 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Total Hydraulic Cycle Time - Empty Bucket

18.2 s ( 18.2 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Lower Float Down

3.5 s ( 3.5 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Rack Back

4.5 s ( 4.5 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Raise

8.0 s ( 8.0 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Dump

2.2 s ( 2.2 s )
Sound Performance - Tier 4 Final/Stage IV - Standard - Operator Sound Level (ISO 6396)

72 dB(A) ( 72 dB(A) )
Sound Performance - Tier 4 Final/Stage IV - Standard - Machine Sound Level (ISO 6395)

111 dB(A) ( 111 dB(A) )
Sound Performance - Tier 4 Final/Stage IV: Suppression - Machine Sound Level (ISO 6395)

109 dB(A) ( 109 dB(A) )
Sound Performance - Tier 4 Final/Stage IV: Suppression - Operator Sound Level (ISO 6396)

72 dB(A) ( 72 dB(A) )
Sound Performance - Tier 2 Equivalent/Stage II: Suppression - Operator Sound Level (ISO 6396)

72 dB(A) ( 72 dB(A) )
Sound Performance - Tier 2 Equivalent/Stage II: Standard - Machine Sound Level (ISO 6395)

112 dB(A) ( 112 dB(A) )
Sound Performance - Tier 2 Equivalent/Stage II: Suppression - Machine Sound Level (ISO 6395)

110 dB(A) ( 110 dB(A) )
Service Refill Capacities - Coolant (Validated by Test Cell Fill Quantities)

125 l ( 33 gal (US) )
Service Refill Capacities - Transmission - Validated by Test Cell Fill Quantities

110 l ( 29 gal (US) )
Sound Performance - Tier 2 Equivalent/Stage II: Standard - Operator Sound Level ( ISO 6396)

73 dB(A) ( 73 dB(A) )

  • Coal - Performance Series

    11.5m³ (15yd³)

    View Details

  • Coal - Performance Series

    11.5m³ (15yd³)

    View Details

  • Coal - Performance Series

    13m³ (17yd³)

    View Details

  • Logging Forks

    2479mm (98in)

    View Details

  • High Abrasion Rock

    4.4m³ (5.75yd³) Iron Ore

    View Details

  • High Abrasion Rock

    4.7m³ (6.2yd³) Iron Ore

    View Details

  • Heavy Duty Granite

    6.4m³ (8.33yd³)

    View Details

  • Heavy Duty Granite

    6.4m³ (8.3yd³) Performance Series

    View Details

  • Block Handling

    988K

    View Details

  • Technology Kits

    Cat® Detect with Smart Camera

    View Details

  • Technology Kits

    Cat® Detect with Surround Cameras

    View Details

Related products

  • Equipment
  • Power Systems
  • Attachments
  • Material Handling
Select Up To 3 Models To Compare
Compare