988K Wheel Loader
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 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 988K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.
Engine
Net Power
Engine Model
Bore
Stroke
Displacement
Torque Rise
Rated Speed
Peak Torque - 1,200 rpm
Net Power - SAE J1349
Peak Power Speed
Peak Power Speed - 1,500 rpm - Gross - ISO 14396
Gross - ISO 14396
Peak Power Speed - 1,500 rpm - Gross - SAE J1995
Emissions
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349
Operating Specifications
Operating Weight
Bucket Capacity Range
Rated Payload - Quarry Face
Cat Truck Match - High Lift
Rated Payload - Loose Material
Cat Truck Match - Standard
Buckets
Bucket Capacities
Transmission
Transmission Type
Forward - 1
Forward - 2
Forward - 3
Forward - 4
Reverse - 1
Reverse - 2
Reverse - 3
Direct Drive - Reverse 2
Direct Drive - Reverse 3
Direct Drive - Forward 2
Direct Drive - Reverse 1
Direct Drive - Forward 1
Direct Drive - Forward 3
Direct Drive - Forward 4
Axles
Front
Rear
Oscillation Angle
Service Refill Capacities
Fuel Tank
Cooling System
Crankcase
Transmission
Hydraulic System - Tank Only
Differential - Final Drives - Rear
Hydraulic System Factory Fill
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only)
Differential - Final Drives - Front
Coolant (Validated by Test Cell Fill Quantities)
Transmission - Validated by Test Cell Fill Quantities
Hydraulic System - Lift/Tilt
Maximum Flow
Maximum Flow at 1,400-1,860 rpm
Lift/Tilt System
Cylinders, Double Acting - Tilt, Bore and Stroke
Relief Valve Setting - Main
Relief Valve Setting - Lift/Tilt
Pilot System
Cylinders, Double Acting - Lift, Bore and Stroke
Lift/Tilt System - Circuit
Hydraulic System - Steering
Steering System - Pump
Total Steering Angle
Maximum Flow
Relief Valve Setting - Steering
Steering Cycle Times - High Idle
Steering System - Circuit
Steering Cycle Times - Low Idle
Hydraulic Cycle Time (1,400-1,860 rpm)
Total Hydraulic Cycle Time - Empty Bucket
Lower Float Down
Rack Back
Raise
Dump
Sound Performance - Tier 4 Final/Stage IV - Standard
Operator Sound Level (ISO 6396)
Machine Sound Level (ISO 6395)
Sound Performance - Tier 4 Final/Stage IV: Suppression
Machine Sound Level (ISO 6395)
Operator Sound Level (ISO 6396)
Sound Performance - Tier 2 Equivalent/Stage II: Suppression
Operator Sound Level (ISO 6396)
Machine Sound Level (ISO 6395)
Sound Performance - Tier 2 Equivalent/Stage II: Standard
Machine Sound Level (ISO 6395)
Operator Sound Level ( ISO 6396)
Brakes
Brakes
Standard Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Electrical
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- 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
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- Operator Environment
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- 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
- Mirrors, rearview (externally mounted)
- Rimpull Control System
- Seat, Cat Comfort (cloth), air suspension, six-way adjustable
- Seat belt minder
- Seat belt, retractable, 76 mm (3 in) wide
- STIC Control System
- UV glass
- Transmission 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
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- Power Train
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- Brakes, oil-cooled, multi-disc, service/secondary
- Case drain screens
- Crankcase guard
- 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
- Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
- Transmission, planetary powershift, 4F/3R electronic control
- Manual switch and automatic fuel priming
- Cat Production Measurement ready
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- Other
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- 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, 731 L (188 gal)
- Hitch, drawbar with pin
- Hoses, Cat XT™
- Hydraulic, steering and brake filtration/screening system
- Cat Clean Emission Module
- Oil sampling valves
- Premixed 50% 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.
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- Power Train
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- –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
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- Operator Environment
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- Cab precleaner
- AM/FM/CD/MP3 radio
- Satellite Sirius radio with bluetooth
- LED warning strobe
- CB radio ready
- Window pull down visor
- Handrail mounted mirrors
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- Miscellaneous Attachments
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- Front and rear roading fenders
- Fast fill fuel system (Shaw-Aero)
- Cold Weather Starting (extra starter plus two batteries)
- Aggregate Handler
Contact Us
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