New CAT Equipment
988 GC Wheel Loader
Get a Quote
Learn more about the 988 GC Wheel Loader
Product Specs
- Engine
- Operating Specifications
- Transmission
- Hydraulic System - Lift/Tilt
- Hydraulic Cycle Times
- Hydraulic System - Steering
- Air Conditioning System
- Axles
- Brakes
- Operator's Cab
- Service Refill Capacities
- Sound Performance - Tier 4 Final/EU Stage V - Standard
- Dimensions (Approximate) - High Lift
- Buckets
- Sustainability
Engine
| 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
| 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. |
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 | 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. |
Buckets
| Bucket Capacities | 6.4-7.6 m3 (8.3-10 yd3) |
Sustainability
| Recyclability | 96% |