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988K XE

Large Wheel Loaders

Cat® Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely at a lower cost per ton.Introduced in 1963, the 988 has been the industry leader for over 50 years, built on a legacy of reliability, performance, safety, operator comfort, serviceability, and productivity. The 988K XE brings improved sustainability and maximum efficiency to this machine platform.

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Net Power - SAE J1349 401 kW

Engine Model Cat® C18 ™

Engine Power - ISO 14396 432 kW

Gross Power - SAE J1995 439 kW

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988K XE

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OVERVIEW

MOVE MORE MATERIAL EFFICIENTLY AND AT A LOWER COST

FEATURES & BENEFITS

PROVEN RELIABILITY

Proven ReliabilityWith 15+ years of electric-drive experience, the 988K XE combines the simple and robust switched reluctance technology with proven machine design.More t... Read more

LONG TERM VALUE AND DURABILITY

DurabilityAchieves longer engine life and improved fuel efficiency with reduced rated speed.Automatic retarder controls maintain speed on grade.One-piece castings provide... Read more

ACHIEVE GREATER PRODUCTIVITY

Achieve Greater ProductivityUp to 10 percent increase in productivity in load and carry applications.Electric-drive system eliminates shifting and simplifies operator con... Read more

POWERFUL EFFICIENCY

Superior Fuel EfficiencyUp to 25 percent better fuel efficiency overall.Up to 49 percent more fuel efficiency in truck loading applications.Greenhouse gas reductions up t... Read more

PRODUCTIVITY WITH TECHNOLOGY

Increase Productivity and Efficiency with Integrated TechnologiesCat Technologies developed to monitor, manage, and enhance your jobsite operations.Cat Payload provides a... Read more

SAFETY FIRST

Safety FeaturesHazardous voltage lamp assures electric drive system is de-energized and machine is safe to work on.Achieve precise positioning for easy loading in tight a... Read more

SAVE ON SERVICE AND MAINTENANCE

Reduced Maintenance Time and CostsElectric-drive system maximizes consumable life, reducing oil and filter waste. Enables two times the life for power train oil and four... Read more

OPERATOR COMFORT AND CONTROL

Easy, Comfortable OperatorEnvironmentBest-in-class operator comfort and ergonomics.Comfort Series III seats with extra thick, contoured cushions provide total comfort thr... Read more

PURPOSE-BUILT SPECIALTY MODELS

Purpose-Built Specialty ArrangementsMillyardUnload a typical full-length log truck in a single pass with the larger lift and tilt cylinders and a unique tilt lever to max... Read more

SPECIFICATIONS FOR 988K XE

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Engine

Net Power - SAE J1349	401 kW
Engine Model	Cat® C18 ™
Engine Power - ISO 14396	432 kW
Gross Power - SAE J1995	439 kW
Rated Speed	1,700 rpm
Emissions	U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014
Peak Power Speed	1,500 rpm
Bore	145 mm
Stroke	183 mm
Displacement	18.1 l
Peak Torque - 1,200 rpm - SAE J1995	3023 N·m
Torque Rise	58%

Operating Specifications

Operating Weight	52781 kg
Operating Weight - Standard	52781 kg
Operating Weight - High Lift	54258 kg
Rated Payload - Standard (Quarry Face)	11.3 t
Rated Payload - Loose Material (Standard)	14.5 t
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)

Transmission

Transmission Type	Cat switched reluctance electric drive
Forward 1 (virtual)	7 km/h
Forward 2 (virtual)	11.3 km/h
Forward 3 (virtual)	22.2 km/h
Forward 4 (virtual)	32.1 km/h
Reverse 1 (virtual)	7 km/h
Reverse 2 (virtual)	11.3 km/h
Reverse 3 (virtual)	28.2 km/h

Hydraulic System - Lift/Tilt

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	580 l/min
Relief Valve Setting - Lift/Tilt	32800 kPa
Lift Cylinder - Bore	210 mm
Lift Cylinder - Stroke	1050 mm
Tilt Cylinder - Bore	269 mm
Tilt Cylinder - Stroke	685 mm

Hydraulic Cycle Times

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

Steering System - Circuit	Pilot, load sensing
Steering System - Pump	Piston, variable displacement
Maximum Flow at 1,400-1,600 rpm	270 l/min
Steering Cut Off Pressure	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

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	13°

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	555 l
Cooling System - Jacket Water	112 l
Cooling Systems - Power Train	30 l
Engine Crankcase	60 l
Diesel Exhaust Fluid Tank	33 l
Transmission	60 l
Differential - Final Drives - Front	186 l
Differential - Final Drives - Rear	186 l
Hydraulic System - Implement/Steering	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/EU Stage V - Standard

Operator Sound Level (ISO 6396)	72 dB(A)
Machine Sound Level (ISO 6395)	109 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) - Standard Lift

Ground to Top of ROPS	4202 mm
Ground to Top of Exhaust Stacks	4498 mm
Ground to Top of Hood	3334 mm
Ground to Bumper Clearance	933 mm
Rear Axle - Centerline to Bumper	3187 mm
Front Axle Centerline to Bucket Tip	14 mm
Wheel Base	4550 mm
Maximum Overall Length	11991 mm
Ground to Lower Hitch Clearance	568 mm
Ground to Center of Axles	978 mm
Clearance at Maximum Lift	3641 mm
B-Pin Height - Maximum Lift	5479 mm
Maximum Overall Height - Bucket Raised	7455 mm
Reach - Maximum Lift	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

Ground to Top of ROPS	4202 mm
Ground to Top of Exhaust Stacks	4498 mm
Ground to Top of Hood	3334 mm
Ground to Bumper Clearance	933 mm
Rear Axle - Centerline to Bumper	3187 mm
Front Axle Centerline to Bucket Tip	4661 mm
Wheel Base	4550 mm
Maximum Overall Length	12398 mm
Ground to Lower Hitch Clearance	568 mm
Ground to Center of Axles	978 mm
Clearance at Maximum Lift	4043 mm
B-Pin Height - Maximum Lift	5881 mm
Maximum Overall Height - Bucket Raised	7849 mm
Reach - Maximum Lift	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.

Buckets

Bucket Capacities

4.7-13 m3 (6.2-17 yd3)

Sustainability

Daya Bersih - ISO 9249 305 kW

Diameter 137 mm

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988K XE

Large Wheel Loaders

988K XE

OVERVIEW

MOVE MORE MATERIAL EFFICIENTLY AND AT A LOWER COST

FEATURES & BENEFITS

SPECIFICATIONS FOR 988K XE

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) - Standard Lift

Dimensions (Approximate) - High Lift

Buckets

Sustainability

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SEND REQUEST

GET A QUOTE

DELIVERY & PAYMENT

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FEATURES & BENEFITS

PROVEN RELIABILITY

FEATURES & BENEFITS

LONG TERM VALUE AND DURABILITY

FEATURES & BENEFITS

ACHIEVE GREATER PRODUCTIVITY

FEATURES & BENEFITS

POWERFUL EFFICIENCY

FEATURES & BENEFITS

PRODUCTIVITY WITH TECHNOLOGY

FEATURES & BENEFITS

SAFETY FIRST

FEATURES & BENEFITS

SAVE ON SERVICE AND MAINTENANCE

FEATURES & BENEFITS

OPERATOR COMFORT AND CONTROL

FEATURES & BENEFITS

PURPOSE-BUILT SPECIALTY MODELS

Select Up to
3 Models to Compare