988K XE Wheel Loader

988K XE Wheel Loader

360° Exterior View

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 ...
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Engine

Net Power
541HP
Engine Model
Cat® C18 ACERT™
Bore
5.7in
Stroke
7.2in
Displacement
1105in³
Rated Speed
1,700 rpm
Torque Rise
58%
Peak Torque @ (speed) - SAE J1995
2104ft·lbf
Net Power - SAE J1349
541HP
Gross Power - ISO 14396
580HP
Emissions
U.S. EPA Tier 4 Final/EU Stage IV
Peak Power Speed
1,500 rpm
Peak Power Speed - 1,500 rpm - Gross - ISO 14396
580HP
Peak Power Speed - 1,500 rpm - Gross - SAE J1995
588HP
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349
541HP

Operating Specifications

Operating Weight
116362lb
Bucket Capacity Range
4.7-13 m3 (6.2-17 yd3)
Rated Payload - Standard (Loose Material)
16t
Rated Payload - Standard (Face Material)
12.5t
Rated Payload - High Lift (Loose Material)
16t
Rated Payload - High Lift (Face Material)
12.5t
Operating Weight - High Lift
119618lb
Operating Weight - Standard
116362lb

Buckets

Bucket Capacities
4.7-13 m3 (6.2-17 yd3)

Transmission

Transmission Type
Cat switched reluctance electric drive
Forward 1 (virtual)
4.3mile/h
Forward 2 (virtual)
7mile/h
Forward 3 (virtual)
13.8mile/h
Forward 4 (virtual)
20mile/h
Reverse 1 (virtual)
4.3mile/h
Reverse 2 (virtual)
7mile/h
Reverse 3 (virtual)
17.5mile/h

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
13°

Service Refill Capacities

Fuel Tank
147gal (US)
Transmission
16gal (US)
Hydraulic System - Implement/Steering
126gal (US)
Engine Crankcase
16gal (US)
Differential - Final Drives - Rear
49gal (US)
Differential - Final Drives - Front
49gal (US)
Diesel Exhaust Fluid Tank
8.7gal (US)
Cooling Systems - Power Train
8gal (US)
Cooling System - Jacket Water
30gal (US)
Note
All non-road Tier 4 Final/Stage IV 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) or up to B20 biodiesel when feedstock meeting ASTM D7467 specificat

Hydraulic System - Lift/Tilt

Tilt Cylinder - Stroke
27in
Tilt Cylinder - Bore
8.7in
Relief Valve Setting - Lift/Tilt
4757psi
Lift/Tilt System - Pump
Variable displacement piston
Lift/Tilt System - Circuit
EH-Positive Flow Control, Flow Sharing
Lift Cylinder - Stroke
41.3in
Lift Cylinder - Bore
8.7in
Maximum Flow at 1,400-1,600 rpm
153gal/min

Hydraulic System - Steering

Maximum Flow at 1,400-1,600 rpm
71.3gal/min
Steering
ISO 5010:2007
Steering Cut Off Pressure
4351psi
Steering Cycle Times - High Idle
3.4s
Steering Cycle Times - Low Idle
5.6s
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Total Steering Angle
86°

Sound Performance - Tier 4 Final/Stage IV

Operator Sound Level (ISO 6396)
72dB(A)
Machine Sound Level (ISO 6395)
109dB(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
13.7ft
Ground to Top of Exhaust Stacks
14.8ft
Ground to Top of Hood
10.9ft
Ground to Bumper Clearance
3.1ft
Rear Axle - Centerline to Bumper
10.5ft
Front Axle Centerline to Bucket Tip
14.7ft
Wheel Base
14.9ft
Maximum Overall Length
40ft
Ground to Lower Hitch Clearance
1.9ft
Ground to Center of Axles
3.2ft
Clearance at Maximum Lift
11.3ft
B-Pin Height - Maximum Lift
18ft
Maximum Overall Height - Bucket Raised
24.5ft
Reach - Maximum Lift
6.8ft
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
13.7ft
Ground to Top of Exhaust Stacks
14.8ft
Ground to Top of Hood
10.9ft
Ground to Bumper Clearance
3.1ft
Rear Axle - Centerline to Bumper
10.5ft
Front Axle Centerline to Bucket Tip
15.9ft
Maximum Overall Length
41.3ft
Ground to Lower Hitch Clearance
1.9ft
Ground to Center of Axles
3.2ft
Clearance at Maximum Lift
12.7ft
B-Pin Height - Maximum Lift
19.3ft
Maximum Overall Height - Bucket Raised
25.8ft
Reach - Maximum Lift
7ft
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.
Wheel Base
14.9ft

Hydraulic Cycle Times

Dump
2.2s
Lower Float Down
3.5s
Rack Back
4.5s
Raise
8s
Total Hydraulic Cycle Time
18.2s

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.

Operator's Cab

ROPS/FOPS
ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Brakes

Brakes
ISO 3450:2011

Standard Equipment:

Optional Equipment:

    Power Train
    • –50° C (–58° F) antifreeze
    • Engine oil change system, high speed, Wiggins
    • Engine block heater 120V or 240V
    • High ambient cooling – software
    • Cat Production Measurement
    • Crankcase guard
    Operator Environment
    • Cab precleaner
    • AM/FM/CD/MP3 radio
    • Satellite Sirius radio with Bluetooth®
    • LED warning strobe
    • Window pull down visor
    • Handrail mounted mirrors
    Miscellaneous Attachments
    • Front and rear roading fenders
    • Fast fill fuel system (Shaw-Aero)
    • Cold Weather Starting (extra starter plus two batteries)
    • Aggregate Handler
    • Tire Pressure Monitoring System