Move more material in less time at a low cost per ton with the Cat® 988 XE wheel loader. The electric-drive 988 XE is faster and more efficient than the powershift 988 in applications that demand high performance and production. Get a fast return on your investment with great overall fuel efficiency and designed-in durability for multiple life cycles.
Engine | |
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Net Power - SAE J1349:2011 | 538 hp / 401 kW |
Engine Model | Cat® C18 ™ |
Engine Power - ISO 14396:2002 | 580 hp / 432 kW |
Gross Power - SAE J1995:2014 | 588 hp / 436 kW |
Rated Speed | 1,700 rpm |
Peak Power Speed | 1,500 rpm |
Emissions | U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 |
Bore | 5.7 in / 145 mm |
Stroke | 7.2 in / 183 mm |
Displacement | 1105 in³ / 18.1 l |
Peak Torque - 1,200 rpm - SAE J1995 | 2230 ft·lbf / 3023 N·m |
Torque Rise | 58% |
Operating Specifications | |
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Operating Weight | 116362 lb / 52781 kg |
Operating Weight - Standard | 116362 lb / 52781 kg |
Operating Weight - High Lift | 119618 lb / 54258 kg |
Rated Payload - Standard (Quarry Face) | 12.5 ton (US) / 11.3 t |
Rated Payload - Loose Material (Standard) | 16 ton (US) / 14.5 t |
Bucket Capacity Range | 4.7-13 m3 (6.2-17 yd3) |
Transmission | |
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Transmission Type | Cat switched reluctance electric drive |
Forward 1 (virtual) | 4.3 mile/h / 7 km/h |
Forward 2 (virtual) | 7 mile/h / 11.3 km/h |
Forward 3 (virtual) | 13.8 mile/h / 22.2 km/h |
Forward 4 (virtual) | 20 mile/h / 32.1 km/h |
Reverse 1 (virtual) | 4.3 mile/h / 7 km/h |
Reverse 2 (virtual) | 7 mile/h / 11.3 km/h |
Reverse 3 (virtual) | 17.5 mile/h / 28.2 km/h |
Hydraulic System - Lift/Tilt | |
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Lift/Tilt System - Circuit | EH-Positive Flow Control, Flow Sharing |
Lift/Tilt System - Pump | Variable displacement piston |
Maximum Flow at 1,400-1,600 rpm | 153 gal/min / 580 l/min |
Relief Valve Setting - Lift/Tilt | 4757 psi / 32800 kPa |
Lift Cylinder - Bore | 8.7 in / 210 mm |
Lift Cylinder - Stroke | 41.3 in / 1050 mm |
Tilt Cylinder - Bore | 8.7 in / 269 mm |
Tilt Cylinder - Stroke | 27 in / 685 mm |
Hydraulic Cycle Times | |
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Rack Back | 4.5 s |
Raise | 8 s |
Dump | 2.2 s |
Lower Float Down | 3.5 s |
Total Hydraulic Cycle Time | 18.2 s |
Hydraulic System - Steering | |
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Steering System - Circuit | Pilot, load sensing |
Steering System - Pump | Piston, variable displacement |
Maximum Flow at 1,400-1,600 rpm | 71.3 gal/min / 270 l/min |
Steering Cut Off Pressure | 4351 psi / 30000 kPa |
Total Steering Angle | 86° |
Steering Cycle Times - High Idle | 3.4 s |
Steering Cycle Times - Low Idle | 5.6 s |
Air Conditioning System | |
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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 | |
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Front | Fixed |
Rear | Trunnion |
Oscillation Angle | 13° |
Brakes | |
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Brakes | ISO 3450:2011 |
Operator's Cab | |
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ROPS/FOPS | ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards |
Service Refill Capacities | |
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Fuel Tank | 147 gal (US) / 555 l |
Cooling System - Jacket Water | 30 gal (US) / 112 l |
Cooling Systems - Power Train | 8 gal (US) / 30 l |
Engine Crankcase | 16 gal (US) / 60 l |
Diesel Exhaust Fluid Tank | 8.7 gal (US) / 33 l |
Transmission | 16 gal (US) / 60 l |
Differential - Final Drives - Front | 49 gal (US) / 186 l |
Differential - Final Drives - Rear | 49 gal (US) / 186 l |
Hydraulic System - Implement/Steering | 126 gal (US) / 475 l |
Note | All nonroad Tier 4 Final/Stage V diesel engines are required to use: – The machine has the flexibility to run on either ultra-low-sulfur diesel fuel (ULSD with 15 ppm of sulfur or less). – Cat engines are compatible with the following renewable, alternative, and biodiesel* fuels that reduce greenhouse gases: Up to B20 biodiesel (FAME) ** Up to 100% HVO and GTL renewable fuels * Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required. – Only use DEF that meets ISO 22241-1 standards. |
Sound Performance - Tier 4 Final / Stage V - Standard | |
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Operator Sound Pressure Level (ISO 6396:2008) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 109 dB(A) |
Sound Performance - Tier 3 / Stage III - Standard | |
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Operator Sound Pressure Level (ISO 6396:2008) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 110 dB(A) |
Dimensions (Approximate) - Standard Lift | |
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Ground to Top of ROPS | 13.8 ft / 4202 mm |
Ground to Top of Exhaust Stacks | 14.8 ft / 4498 mm |
Ground to Top of Hood | 10.9 ft / 3334 mm |
Ground to Bumper Clearance | 3.1 ft / 933 mm |
Rear Axle - Centerline to Bumper | 10.5 ft / 3187 mm |
Front Axle Centerline to Bucket Tip | 14 ft / 14 mm |
Wheel Base | 14.9 ft / 4550 mm |
Maximum Overall Length | 39.3 ft / 11991 mm |
Ground to Lower Hitch Clearance | 1.9 ft / 568 mm |
Ground to Center of Axles | 3.2 ft / 978 mm |
Clearance at Maximum Lift | 11.9 ft / 3641 mm |
B-Pin Height - Maximum Lift | 18 ft / 5479 mm |
Maximum Overall Height - Bucket Raised | 24.5 ft / 7455 mm |
Reach - Maximum Lift | 6.5 ft / 1981 mm |
Note | Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height. |
Dimensions (Approximate) - High Lift | |
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Ground to Top of ROPS | 13.8 ft / 4202 mm |
Ground to Top of Exhaust Stacks | 14.8 ft / 4498 mm |
Ground to Top of Hood | 10.9 ft / 3334 mm |
Ground to Bumper Clearance | 3.1 ft / 933 mm |
Rear Axle - Centerline to Bumper | 10.5 ft / 3187 mm |
Front Axle Centerline to Bucket Tip | 15.3 ft / 4661 mm |
Wheel Base | 14.9 ft / 4550 mm |
Maximum Overall Length | 40.7 ft / 12398 mm |
Ground to Lower Hitch Clearance | 1.9 ft / 568 mm |
Ground to Center of Axles | 3.2 ft / 978 mm |
Clearance at Maximum Lift | 13.3 ft / 4043 mm |
B-Pin Height - Maximum Lift | 19.3 ft / 5881 mm |
Maximum Overall Height - Bucket Raised | 25.8 ft / 7849 mm |
Reach - Maximum Lift | 6.8 ft / 2062 mm |
Note | Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height. |
Dimensions - Millyard Linkage | |
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Ground to Top of ROPS | 13.8 ft / 4221 mm |
Ground to Top of Exhaust Stacks | 13.8 ft / 4214 mm |
Ground to Top of Hood | 10.9 ft / 3334 mm |
Ground to Bumper Clearance | 3.1 ft / 933 mm |
Rear Axle - Centerline to Bumper | 10.5 ft / 3187 mm |
Front Axle Centerline to Fork Tip | 16.5 ft / 5023 mm |
Wheel Base | 14.9 ft / 4550 mm |
Maximum Overall Length | 41.9 ft / 12761 mm |
Ground to Lower Hitch Clearance | 1.9 ft / 568 mm |
Ground to Center of Front Axle | 3.2 ft / 978 mm |
Fork Height with Level Arms | 8.1 ft / 2474 mm |
Fork Top Clamp Opening | 13.1 ft / 4006 mm |
Fork Height at Maximum Lift | 17.2 ft / 5242 mm |
Hinge Pin Height at Maximum Lift | 16.1 ft / 4918 mm |
Dump Angle at Maximum Lift | -39.4 ° |
Buckets | |
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Bucket Capacities | 4.7-13 m3 (6.2-17 yd3) |
Sustainability | |
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Recyclability | 96% |
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