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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 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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Specs
Engine
- Net Power
- 541hp
- Engine Model
- Cat® C18 ACERT™
- Net Power – SAE J1349
- 541hp
- Bore
- 5.7in
- Stroke
- 7.2in
- Displacement
- 1105in3
- Torque Rise
- 58%
- Rated Speed
- 1,700 rpm
- Emissions
- U.S. EPA Tier 4 Final/EU Stage IV
- Gross Power – ISO 14396
- 580hp
- Peak Torque @ (speed) – SAE J1995
- 2104lbf-ft
- 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
- Net Power
- 541HP
- Engine Model
- Cat® C18 ™
- Bore
- 5.7in
- Stroke
- 7.2in
- Displacement
- 1105in³
- Rated Speed
- 1,700 rpm
- Emissions
- U.S. EPA Tier 4 Final/EU Stage IV
- Gross Power - ISO 14396
- 580HP
- Net Power - SAE J1349
- 541HP
- Peak Torque @ (speed) - SAE J1995
- 2104ft·lbf
- Torque Rise
- 58%
Operating Specifications
- Operating Weight
- 116362lb
- Rated Payload – Standard (face material)
- 12.5tons
- Rated Payload – Standard (loose material)
- 16tons
- Rated Payload – High Lift (face material)
- 12.5tons
- Rated Payload – High Lift (loose material)
- 16tons
- Bucket Capacity Range
- 4.7-13 m3 (6.2-17 yd3)
- Operating Weight – Standard
- 116362lb
- Operating Weight – High Lift
- 119618lb
- Operating Weight
- 116362lb
- Rated Payload - High Lift (Moderate to High Digging Resistance)
- 12.5t
- Rated Payload - High Lift (Low to Moderate Digging Resistance)
- 16t
- Rated Payload - Standard Lift (Moderate to High Digging Resistance)
- 12.5t
- Rated Payload - Standard Lift (Low to Moderate Digging Resistance)
- 16t
- Operating Weight - High Lift
- 119618lb
- Operating Weight - Standard
- 116362lb
- Rated Payload - Standard (Quarry Face)
- 12.5ton (US)
- Rated Payload - Loose Material (Standard)
- 16ton (US)
Buckets
- Bucket Capacities
- 4.7-13 m3 (6.2-17 yd3)
- 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
- Transmission Type
- Cat switched reluctance electric drive
Axles
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 13°
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 13°
Hydraulic System – Steering
- Steering System – Circuit
- Pilot, load sensing
- Steering System – Pump
- Piston, variable displacement
- Steering Cut Off Pressure
- 4351psi
- Total Steering Angle
- 86°
- Steering Cycle Time (high idle)
- 3.4sec
- Steering Cycle Time (low idle)
- 5.6sec
Service Refill Capacities
- Fuel Tank
- 147gal
- Cooling System (jacket water)
- 30gal
- Cooling Systems (power train)
- 8gal
- Engine Crankcase
- 16gal
- Diesel Exhaust Fluid Tank
- 8.7gal
- Transmission
- 16gal
- Differentials and final drives – front
- 49gal
- Differentials and final drives – rear
- 49gal
- Hydraulic System – implement/steering
- 126gal
- 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
- Fuel Tank
- 147gal (US)
- Transmission
- 16gal (US)
- Cooling System - Jacket Water
- 30gal (US)
- Cooling Systems - Power Train
- 8gal (US)
- Diesel Exhaust Fluid Tank
- 8.7gal (US)
- Differential - Final Drives - Front
- 49gal (US)
- Differential - Final Drives - Rear
- 49gal (US)
- Engine Crankcase
- 16gal (US)
- Hydraulic System - Implement/Steering
- 126gal (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
- Lift/Tilt System Pumps
- Variable displacement piston
- Lift Cylinder – Bore
- 8.7in
- Lift Cylinder – Stroke
- 41.3in
- Tilt Cylinder – Bore
- 8.7in
- Tilt Cylinder – Stroke
- 27in
- Lift/Tilt System – Circuit
- EH-Positive Flow Control, Flow Sharing
- Relief Valve Setting – Lift/Tilt
- 4757psi
Hydraulic Cycle Time
- Rackback
- 4.5Seconds
- Raise
- 8Seconds
- Dump
- 2.2Seconds
- Lower Float Down
- 3.5Seconds
- Total Hydraulic Cycle Time
- 18.2Seconds
Brakes
- Brakes
- ISO 3450:2011
- Brakes
- ISO 3450:2011
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.
Hydraulic System - Lift/Tilt
- Maximum Flow at 1,400-1,600 rpm
- 153gal/min
- Lift Cylinder - Bore
- 8.7in
- Lift Cylinder - Stroke
- 41.3in
- Lift/Tilt System - Circuit
- EH-Positive Flow Control, Flow Sharing
- Lift/Tilt System - Pump
- Variable displacement piston
- Relief Valve Setting - Lift/Tilt
- 4757psi
- Tilt Cylinder - Bore
- 8.7in
- Tilt Cylinder - Stroke
- 27in
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.
- 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 Cab
- ROPS/FOPS
- ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
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
Dimensions (Approximate) – High Lift
- 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
Operator's Cab
- ROPS/FOPS
- ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Features
POWERFUL EFFICIENCY
PROVEN RELIABILITY
LONG TERM VALUE AND DURABILITY
PERFORMANCE AND PRODUCTIVITY
OPERATOR COMFORT AND CONTROL
PRODUCTIVITY WITH TECHNOLOGY
SAVE ON SERVICE AND MAINTENANCE
TOP-TIER SERVICE AND SUPPORT
SAFETY FIRST
REDUCE ENVIRONMENTAL IMPACT
EFFICIENT EQUIPMENT MATCH
ATTACHMENTS TO MEET YOUR NEEDS
Standard Equipment
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- Electrical
-
- Alarm, back-up
- Alternator, single 150 amp
- Batteries, dry
- Converter, 10/15 amp, 24V to 12V
- Lighting system (halogen, work lights, access and service platform lighting)
- Starting and charging system, 24V
- Starter emergency start receptacle
- Starter lockout in bumper
- Transmission lockout in bumper
- Hazardous voltage lamp
-
- Operator Environment
-
- Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
- Air conditioner
- Cat Detect Vision, rear vision camera system
- Cab, sound suppressed and pressurized, integrated rollover protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12‑volt 5-amp) and power port
- Controls, lift and tilt function
- Heater, defroster
- Horn, electric
- Instrumentation, gauges
– Coolant temperature
– Engine hour meter
– Hydraulic oil temperature
– Power train oil temperature - Light, cab, dome
- Lunchbox, beverage holders
- CB radio-ready
- Mirrors, rearview (externally mounted)
- Rimpull Control System
- Seat, Cat Comfort Series III, heated and ventilated, air suspension, six-way adjustable
- Seat belt minder
- Seat belt, retractable, 76 mm (3 in) wide
- STIC Control System
- UV glass
- Virtual gear indicator
- Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
- Wet-Arm wipers/washers (front and rear)
– Intermittent front and rear wipers - Lights, directional
-
- Power Train
-
- Brakes, oil-cooled, multi-disc, service/secondary
- Case drain screens
- Electro hydraulic parking brake
- Engine, C18 MEUI diesel, turbocharged/aftercooled
- Ground level engine shutoff
- Turbine precleaner, engine air intake
- Radiator, Aluminum Modular Radiator (AMR)
- Starting aid, ether, automatic
- Throttle lock, electronic
- Manual switch and automatic fuel priming
- Cat Production Measurement ready
- Cat SR Generator/Pump Drive
- Cat SR Drive Motor
- Cat Integrated Powered Electronics
- Automatic retarding controls
-
- Other
-
- Automatic bucket lift kickout/positioner
- Base machine price includes a rim allowance
- Hydraulically driven demand fan
- Couplings, Cat O-ring face seals
- Doors, service access (locking)
- Ecology drains for engine, radiator, hydraulic tank
- Fuel tank, 555 L (147 gal)
- Hitch, drawbar with pin
- Hoses, Cat XT™
- Hydraulic, steering and brake filtration/screening system
- Cat Clean Emission Module
- Oil sampling valves
- Premixed 50 percent concentration of extended life coolant with freeze protection to –34° C (–29° F)
- Rear access to cab and service platform
- Steering, load sensing
- Toe kicks
- Vandalism protection caplocks
Optional Equipment
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- 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
