The Cat® 988 GC Wheel Loader helps you move more material at a low cost per hour for a fast return on your investment. This machine offers significant fuel savings and up to 10% lower owning and operating cost than the 988K.
| Operating Weight | 112426 lb |
| Bucket Capacity Range | 6.4-7.6 m3 (8.3-10 yd3) |
| Engine Model | Cat® C15 |
| Operating Weight | 112426 lb |
| Bucket Capacity Range | 6.4-7.6 m3 (8.3-10 yd3) |
| Rated Payload – Quarry Face | 12.5 ton (US) |
| Cat Truck Match – High Lift | 772/773/775 |
| Engine Model | Cat® C15 |
| Rated Speed | 2000 rpm |
| Peak Power Speed | 1600 rpm |
| Gross Power – SAE J1995:2014 | 456 hp |
| Net Power – SAE J1349:2011 | 448 hp |
| Bore | 5.4 in |
| Stroke | 6.75 in |
| Displacement | 927 in³ |
| Peak Torque (1,200 rpm) – SAE J1995:2014 | 1778 lbf·ft |
| Torque Rise | 16% |
| Note (1) | Two engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. |
| Note (2) | Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator. |
| Note (3) | Net power at the flywheel when the fan is at maximum speed is 304 kW / 408 hp per SAE reference conditions. |
| 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 1 | Lock-up disabled |
| Direct Drive – Reverse 2 | 9 mile/h |
| Direct Drive – Reverse 3 | 16 mile/h |
| Direct Drive – Reverse 4 | 25.4 mile/h |
| Note | Travel speeds based on 35/65-R33 tires. |
| Lift/Tilt System – Circuit | EH – Load Sense |
| Lift/Tilt System – Pump | Variable displacement piston |
| Maximum Flow at 2,165 rpm | 159 gpm |
| 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 |
| Relief Valve Setting | 500 psi |
| 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 |
| Steering System – Circuit | Pilot, load sensing |
| Steering System – Pump | Piston, variable displacement |
| Maximum Flow at 2,165 rpm | 52 gpm |
| 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 | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. – If equipped with R134a (Global Warming Potential = 1430), the system co |
| Front | Fixed |
| Rear | Trunnion |
| Oscillation Angle | +/-12.5° |
| Brakes | ISO 3450:2011 |
| ROPS/FOPS | Rollover Protective Structure/Falling Objects Protective Structure (ROPS/FOPS) meet ISO 3471:2008 and ISO 3449:2005 Level II standards |
| Operator Sound Pressure Level (ISO 6396:2008) | 73 dB(A) |
| Machine Sound Power Level (ISO 6395:2008) | 113 dB(A) |
| Operator Sound Pressure Level (ISO 6396:2008)* | 72 dB(A) |
| Machine Sound Power Level (ISO 6395:2008)** | 110 dB(A) |
| Note (1) | * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.” |
| Note (2) | ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701. |
| Note (3) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed. |
| Note (4) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed. |
| Note (5) | 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. |
| Operator Sound Pressure Level (ISO 6396:2008) | 74 dB(A) |
| Machine Sound Power Level (ISO 6395:2008) | 113 dB(A) |
| Operator Sound Pressure Level (ISO 6396:2008)* | 73 dB(A) |
| Machine Sound Power Level (ISO 6395:2008)** | 110 dB(A) |
| Note (1) | * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.” |
| Note (2) | ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701. |
| Note (3) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed. |
| Note (4) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed. |
| Note (5) | 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. |
| 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) |
| Hydraulic System Factory Fill | 94 gal (US) |
| Note | Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: – 20% biodiesel FAME (fatty acid methyl ester) *** – 10 |
| 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 |
| Ground to Fuel Tank Clearance | 2.2 ft |
| Rear Axle – Centerline to Bumper | 10.3 ft |
| Front Axle Centerline to Bucket Tip | 16.7 ft |
| Wheel Base | 12.5 ft |
| Maximum Overall Length | 39.5 ft |
| Ground to Lower Hitch Clearance | 1.5 ft |
| Ground to Center of Front Axle | 3.2 ft |
| Clearance at Maximum Lift (45° Dump) | 12 ft |
| B-Pin Height – Maximum Lift | 18.7 ft |
| Maximum Overall Height – Bucket Raised | 25 ft |
| Reach at Maximum Lift (45° Dump) | 7.7 ft |
| Note | Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires. |
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
| Alarm, back-up |
| Alternator, single 145 amp |
| Batteries, maintenance free |
| Converter, 10/15 amp, 24V to 12V |
| Lighting system (LED, work lights, access and service platform lighting) |
| Starting and charging system, 24V |
| Auxiliary jump start receptacle |
| Cab precleaner |
| Lights, LED |
| AM/FM radio |
| 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/falling objects 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– Powertrain oil temperature |
| Light, cab, dome |
| Lunchbox, beverage holders |
| Mirrors, rearview (externally mounted) |
| Seat, Cat Comfort Cloth, air suspension, six-way adjustable |
| Seat belt minder |
| Seat belt, retractable, 76 mm (3 in) wide |
| Steering and Transmission Integrated Control (STIC™) system |
| UV glass |
| Transmission gear indicator |
| Wet-Arm wipers/washers (front and rear)– Intermittent front and rear wipers |
| Lights, directional |
| Cat Production Measurement ready |
| Brakes, oil-cooled, multi-disc, service/secondary |
| Case drain screens |
| Electro hydraulic parking brake |
| Engine, C15 MEUI™ diesel, turbocharged/aftercooled |
| Ground level emergency engine shutdown switch |
| Turbine precleaner, engine air intake |
| Manual switch and automatic fuel priming |
| Torque converter, neutralizer |
| Transmission, planetary power shift, 4F/4R electronic control |
| Cat Integrated Powered Electronics |
| Automatic retarding controls |
| Crankcase guard |
| 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 |
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
| High ambient cooling – software |
| Starting aid, ether, automatic |
| Antifreeze -50°C (-58°F) |
| Cat Production Measurement |
| CB radio-ready |
| Cat Detect, object detection system |
| Front and rear roading fenders |
