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988 GC Wheel Loader

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.

Engine Model
Cat® C15
Rated Speed
2000
Peak Power Speed
1600
Engine Power - ISO 14396
449 HP

Engine

Engine Model
Cat® C15
Rated Speed
2000
Peak Power Speed
1600
Engine Power - ISO 14396
449HP
Gross Power - SAE J1995
456HP
Net Power - SAE J1349
373HP
Emissions
U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014
Bore
5.4in
Stroke
6.75in
Displacement
927in³
Peak Torque - 1,200 rpm - SAE J1995
1778ft·lbf
Torque Rise
16%

Operating Specifications

Operating Weight
116858lb
Rated Payload - Quarry Face
12.5ton (US)
Bucket Capacity Range
6.4-7.6 m3 (8.3-10 yd3)
Cat Truck Match - High Lift
772/773/775

Transmission

Transmission Type
Cat planetary power shift
Forward - 1
5mile/h
Forward - 2
8mile/h
Reverse - 1
5mile/h
Reverse - 2
8mile/h
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

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit
EH - Load Sense
Lift/Tilt System
2X x 145 cc Variable displacement piston
Maximum Flow at 2,165 rpm
159gal/min
Relief Valve Setting - Lift/Tilt
4598psi
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)
Pilot System
Variable displacement piston
Tilt Cylinder - Stroke
27in

Hydraulic Cycle Times

Rack Back
3.8s
Raise
7.5s
Dump
3s
Lower Float Down
4.6s
Total Hydraulic Cycle Time - Empty Bucket
18.9s

Hydraulic System - Steering

Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Maximum Flow
52gal (US)
Relief Valve Setting - Steering
4000psi
Total Steering Angle
70°
Steering Cycle Times - High Idle
3s
Steering Cycle Times - Low Idle
5.2s

Air Conditioning System

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.

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
+/-12.5°

Brakes

Brakes
ISO 3450:2011

Operator's Cab

ROPS/FOPS
ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Service Refill Capacities

Fuel Tank
141gal (US)
Cooling System
27gal (US)
Engine Crankcase
9gal (US)
Diesel Exhaust Fluid Tank
5.5gal (US)
Transmission
20gal (US)
Differential - Final Drives - Front
49gal (US)
Differential - Final Drives - Rear
45gal (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

Sound Performance - Tier 4 Final/EU Stage V - Standard

Operator Sound Level (ISO 6396)
72dB(A)
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.

Dimensions (Approximate) - High Lift

Ground to Top of ROPS
13.5ft
Ground to Top of Exhaust Stacks
13.3ft
Ground to Top of Hood
10.7ft
Rear Axle - Centerline to Bumper
10.3ft
Front Axle Centerline to Bucket Tip
15.7ft
Wheel Base
12.5ft
Maximum Overall Length
39.5ft
Ground to Lower Hitch Clearance
1.5ft
Clearance at Maximum Lift
12ft
B-Pin Height - Maximum Lift
18.7ft
Maximum Overall Height - Bucket Raised
25ft
Reach - Maximum Lift
7.7ft
Note
Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.

Buckets

Bucket Capacities
6.4-7.6 m3 (8.3-10 yd3)

Sustainability

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
    • High ambient cooling – software
    • Optional Cat Production Measurement
    • Optional Engine brake
    • Crankcase guard
  • Operator Environment
    • Cab precleaner
    • Cat Detect, object detection system
    • AM/FM radio
  • Additional Equipment
    • Front and rear roading fenders
    • Cold Weather Starting
    • Autolube

Specifications

Standard/Optional Features