New CAT Equipment

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.

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    Learn more about the 988 GC Wheel Loader


    Product Specs


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

    Operating Specifications

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


    Transmission Type Cat planetary power shift
    Forward - 1 5 mile/h
    Forward - 2 8 mile/h
    Reverse - 1 5 mile/h
    Reverse - 2 8 mile/h
    Direct Drive - Forward 1 Lock-up disabled
    Direct Drive - Forward 2 8 mile/h
    Direct Drive - Forward 3 14 mile/h
    Direct Drive - Forward 4 24 mile/h
    Direct Drive - Reverse 2 9 mile/h
    Direct Drive - Reverse 3 16 mile/h
    Direct Drive - Reverse 4 25.4 mile/h
    Direct Drive - Reverse 1 Lock-up disabled

    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 159 gal/min
    Relief Valve Setting - Lift/Tilt 4598 psi
    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 27 in

    Hydraulic Cycle Times

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

    Hydraulic System - Steering

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

    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.


    Front Fixed
    Rear Trunnion
    Oscillation Angle +/-12.5°


    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 141 gal (US)
    Cooling System 27 gal (US)
    Engine Crankcase 9 gal (US)
    Diesel Exhaust Fluid Tank 5.5 gal (US)
    Transmission 20 gal (US)
    Differential - Final Drives - Front 49 gal (US)
    Differential - Final Drives - Rear 45 gal (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 acid methyl ester)* - 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. **For use of blends higher than 20% biodiesel, consult your Cat dealer

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

    Operator Sound Level (ISO 6396) 72 dB(A)
    Machine Sound Level (ISO 6395) 110 dB(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 13.5 ft
    Ground to Top of Exhaust Stacks 13.3 ft
    Ground to Top of Hood 10.7 ft
    Rear Axle - Centerline to Bumper 10.3 ft
    Front Axle Centerline to Bucket Tip 15.7 ft
    Wheel Base 12.5 ft
    Maximum Overall Length 39.5 ft
    Ground to Lower Hitch Clearance 1.5 ft
    Clearance at Maximum Lift 12 ft
    B-Pin Height - Maximum Lift 18.7 ft
    Maximum Overall Height - Bucket Raised 25 ft
    Reach - Maximum Lift 7.7 ft
    Note Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.


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


    Recyclability 96%