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 | 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 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 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 |
| 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 |
| Rack Back | 3.8s |
| Raise | 7.5s |
| Dump | 3s |
| Lower Float Down | 4.6s |
| Total Hydraulic Cycle Time - Empty Bucket | 18.9s |
| 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 | 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 |
| ROPS/FOPS | ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards |
| 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 |
| 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. |
| 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. |
| Bucket Capacities | 6.4-7.6 m3 (8.3-10 yd3) |
| Recyclability | 96% |
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988 GC Wheel Loader