988 GC Wheel Loader

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The Cat® 988 GC Wheel Loader helps you move more material at a lower cost per hour for a faster return on your investment. This machine offers significant fuel savings and up to 10% lower owning and operating cost than the 988K.

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Bore 5.4in
Displacement 927in³
Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014
Engine Model Cat® C15
Engine Power - ISO 14396 449HP
Gross Power - SAE J1995 456HP
Net Power - SAE J1349 373HP
Peak Power Speed 1600
Peak Torque - 1,200 rpm - SAE J1995 1778ft·lbf
Rated Speed 2000
Stroke 6.75in
Torque Rise 16%
Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3)
Cat Truck Match - High Lift 772/773/775
Operating Weight 116858lb
Rated Payload - Quarry Face 12.5ton (US)
Direct Drive - Forward 1 Lock-up disabled
Direct Drive - Forward 2 8mile/h
Direct Drive - Forward 3 14mile/h
Direct Drive - Forward 4 24mile/h
Direct Drive - Reverse 1 Lock-up disabled
Direct Drive - Reverse 2 9mile/h
Direct Drive - Reverse 3 16mile/h
Direct Drive - Reverse 4 25.4mile/h
Forward - 1 5mile/h
Forward - 2 8mile/h
Reverse - 1 5mile/h
Reverse - 2 8mile/h
Transmission Type Cat planetary power shift
Cylinders, Double Acting - Lift, Bore and Stroke 190 mm x 1216 mm (7.5 in x 48 in)
Cylinders, Double Acting - Tilt, Bore and Stroke 170 mm x 722 mm (6.7 in x 28.4 in)
Lift/Tilt System 2X x 145 cc Variable displacement piston
Lift/Tilt System - Circuit EH - Load Sense
Maximum Flow at 2,165 rpm 159gal/min
Pilot System Variable displacement piston
Relief Valve Setting - Lift/Tilt 4598psi
Tilt Cylinder - Stroke 27in
Dump 3s
Lower Float Down 4.6s
Rack Back 3.8s
Raise 7.5s
Total Hydraulic Cycle Time - Empty Bucket 18.9s
Maximum Flow 52gal (US)
Relief Valve Setting - Steering 4000psi
Steering Cycle Times - High Idle 3s
Steering Cycle Times - Low Idle 5.2s
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement
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 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
Front Fixed
Oscillation Angle +/-12.5°
Rear Trunnion
Brakes ISO 3450:2011
ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Cooling System 27gal (US)
Diesel Exhaust Fluid Tank 5.5gal (US)
Differential - Final Drives - Front 49gal (US)
Differential - Final Drives - Rear 45gal (US)
Engine Crankcase 9gal (US)
Fuel Tank 141gal (US)
Note Cat U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: - 20% biodiesel FAME (fatty a
Transmission 20gal (US)
Machine Sound Level (ISO 6395) 110dB(A)
Note (1) The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (2) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Note (3) The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Operator Sound Level (ISO 6396) 72dB(A)
B-Pin Height - Maximum Lift 18.7ft
Clearance at Maximum Lift 12ft
Front Axle Centerline to Bucket Tip 15.7ft
Ground to Lower Hitch Clearance 1.5ft
Ground to Top of Exhaust Stacks 13.3ft
Ground to Top of Hood 10.7ft
Ground to Top of ROPS 13.5ft
Maximum Overall Height - Bucket Raised 25ft
Maximum Overall Length 39.5ft
Note Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.
Reach - Maximum Lift 7.7ft
Rear Axle - Centerline to Bumper 10.3ft
Wheel Base 12.5ft
Bucket Capacities 6.4-7.6 m3 (8.3-10 yd3)
Recyclability 96%

Standard Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Electrical
    • Alarm, back-up
    • Alternator, single 145 amp
    • Batteries, dry
    • Converter, 10/15 amp, 24V to 12V
    • Lighting system (LED, work lights, access and service platform lighting)
    • Starting and charging system, 24V
    • Starter emergency start receptacle
    • Transmission lockout in bumper
    • Hazardous voltage lamp
  • Operator Environment
    • Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
    • Air conditioner
    • Cat 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
    • CB radio-ready
    • Mirrors, rearview (externally mounted)
    • 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
    • Virtual gear indicator
    • 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
    • Electro hydraulic parking brake
    • Engine, C15 MEUI diesel, turbocharged/aftercooled
    • Ground level engine shutoff
    • Turbine precleaner, engine air intake
    • Starting aid, ether, automatic
    • Throttle lock, electronic
    • Manual switch and automatic fuel priming
    • Cat Production Measurement ready
    • Cat SR Generator/Pump Drive
    • Cat SR Drive Motor
    • Cat Integrated Powered Electronics
    • Automatic retarding controls
  • Additional Equipment
    • 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, 535 L (141 gal)
    • Hoses, Cat XT
    • Hydraulic, steering and brake filtration/screening system
    • Cat Clean Emission Module
    • Oil sampling valves
    • Premixed 50 percent 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

Optional Equipment:

  • 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
    • Engine brake, SEA
    • Crankcase guard
  • Other Optional Configurations
    • Load and Carry
    • Millyard
  • Operator Environment
    • Cab precleaner
    • Cat Detect, object detection system
    • AM/FM radio
    • Satellite Sirius radio with Bluetooth®
  • Additional Equipment
    • Front and rear roading fenders
    • Cold Weather Starting
    • Wheel Chocks
    • Autodig features, Auto Set Tires & Lift Stall Prevention
    • Autodig feature, Tire Slip Prevention
    • EZ Clean cooling system
    • Load and Carry Counterweight
    • Tire Pressure Monitoring System
    • Autolube with Auto shutoff