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988K

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 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.

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Net Power 403 kW
Engine Model Cat® C18 ™
Bore 145 mm
Stroke 183 mm
Availability Please Call Admin
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988K
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OVERVIEW

The industry leader—made better

FEATURES & BENEFITS

POWERFUL EFFICIENCY

Cat C18 EngineThe Cat C18 engine is built and tested to meet your most demanding applications while meeting Tier 4 Final/Stage IV OR Tier 3/Stage IIIA Equivalent OR Tier... Read more

LONG TERM VALUE AND DURABILITY

Robust StructuresYour bottom line is improved by highly durable structures that achieve multiple life cycles and withstand the toughest loading conditions.Full box-sectio... Read more

PROVEN RELIABILITY

Steering and Transmission Integrated Control System (STIC™)Experience maximum responsiveness and control with STIC that combines directional selection, gear selection and... Read more

PERFORMANCE AND PRODUCTIVITY

Positive Flow Control HydraulicsIncrease efficiency through our Positive Flow Control (PFC) Hydraulic System. PFC has concurrent pump and valve control. By optimizing pum... Read more

OPERATOR COMFORT AND CONTROL

Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.Entry and ExitEnter and exit the cab easily and safely with these ne... Read more

PRODUCTIVITY WITH TECHNOLOGY

Integrated electronics provide flexible levels of information to both the site and the operator. This integration creates a smart machine and more informed operator, maxi... Read more

SAVE ON SERVICE AND MAINTENANCE

We can help you succeed by ensuring your 988K has design features to reduce your downtime.Safe and convenient service with ground level or platform access and grouped ser... Read more

TOP-TIER SERVICE AND SUPPORT

Legendary Cat Dealer SupportA valued partner, your Cat dealer is available whenever you need them.Preventive maintenance programs and guaranteed maintenance contracts.Bes... Read more

SAFETY FIRST

We are constantly improving our products in an effort to provide a safe work environment for the operator and those who work on your job site.Machine AccessLeft and right... Read more

SPECIFICATIONS FOR 988K

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Engine
Net Power 403 kW
Engine Model Cat® C18 ™
Bore 145 mm
Stroke 183 mm
Displacement 18.1 l
Torque Rise 58 %
Rated Speed 1700/min
Peak Torque - 1,200 rpm 2852 N·m
Net Power - SAE J1349 403 kW
Peak Power Speed 1500/min
Peak Power Speed - 1,500 rpm - Gross - ISO 14396 432 kW
Gross - ISO 14396 432 kW
Peak Power Speed - 1,500 rpm - Gross - SAE J1995 439 kW
Emissions U.S. EPA Tier 4 Final/EU Stage V OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 403 kW
Operating Specifications
Operating Weight 51062 kg
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face 11.3 t
Cat Truck Match - High Lift 773～775
Rated Payload - Loose Material 14.5 t
Cat Truck Match - Standard 770～772
Transmission
Transmission Type Cat-Planetenlastschaltgetriebe
Forward - 1 6.5 km/h
Forward - 2 11.6 km/h
Forward - 3 20.4 km/h
Forward - 4 34.7 km/h
Reverse - 1 7.5 km/h
Reverse - 2 13.3 km/h
Reverse - 3 23.2 km/h
Direct Drive - Reverse 2 14.3 km/h
Direct Drive - Reverse 3 25.5 km/h
Direct Drive - Forward 2 12.5 km/h
Direct Drive - Reverse 1 8 km/h
Direct Drive - Forward 1 Lock-up disabled
Direct Drive - Forward 3 22.3 km/h
Direct Drive - Forward 4 39.3 km/h
Hydraulic System - Lift/Tilt
Maximum Flow 52 l/min
Maximum Flow at 1,400-1,860 rpm 580 l/min
Lift/Tilt System Variable displacement piston
Cylinders, Double Acting - Tilt, Bore and Stroke 269 mm × 685 mm (8.7 in × 27 in)
Relief Valve Setting - Main 3800 kPa
Relief Valve Setting - Lift/Tilt 32800 kPa
Pilot System Variable displacement piston
Cylinders, Double Acting - Lift, Bore and Stroke 210 mm × 1050 mm (8.7 in × 41.3 in)
Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing
Service Refill Capacities
Fuel Tank 712 l
Cooling System 120 l
Crankcase 60 l
Transmission 120 l
Hydraulic System - Tank Only 240 l
Differential - Final Drives - Rear 186 l
Hydraulic System Factory Fill 475 l
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only) 33 l
Differential - Final Drives - Front 186 l
Coolant (Validated by Test Cell Fill Quantities) 125 l
Transmission - Validated by Test Cell Fill Quantities 110 l
Buckets
Bucket Capacities 4.7-13 m3 (6.2-17 yd3)
Axles
Front Fixed
Rear Trunnion
Oscillation Angle 13 °
Brakes
Brakes SAE J1473 OKT90, ISO 3450:1992
Hydraulic System - Steering
Steering System - Pump Piston, variable displacement
Total Steering Angle 86 °
Maximum Flow 270 l/min
Relief Valve Setting - Steering 30000 kPa
Steering Cycle Times - High Idle 3.4 s
Steering System - Circuit Pilot, load sensing
Steering Cycle Times - Low Idle 5.6 s
Hydraulic Cycle Time (1,400-1,860 rpm)
Total Hydraulic Cycle Time - Empty Bucket 18.2 s
Lower Float Down 3.5 s
Rack Back 4.5 s
Raise 8 s
Dump 2.2 s
Sound Performance - Tier 4 Final/Stage IV - Standard
Operator Sound Level (ISO 6396) 72 dB(A)
Machine Sound Level (ISO 6395) 111 dB(A)
Sound Performance - Tier 4 Final/Stage IV: Suppression
Machine Sound Level (ISO 6395) 109 dB(A)
Operator Sound Level (ISO 6396) 72 dB(A)
Sound Performance - Tier 2 Equivalent/Stage II: Suppression
Operator Sound Level (ISO 6396) 72 dB(A)
Machine Sound Level (ISO 6395) 110 dB(A)
Sound Performance - Tier 2 Equivalent/Stage II: Standard
Machine Sound Level (ISO 6395) 112 dB(A)
Operator Sound Level ( ISO 6396) 73 dB(A)

SELECT MODELS TO COMPARE

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993

Engine Model Cat C32B
Bore 145 mm
Displacement 32.1 l
Emissions U.S. EPA Tier 4 Final, U.S. EPA Tier 2 Equivalent
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990K

Net Power 521 kW
Engine Model Cat® C27
Bore 137.2 mm
Stroke 152.4 mm
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Large Wheel Loaders

995

Engine Model Cat® 3516E
Emissions U.S. EPA Tier 4 Final/EU Stage V or U.S. EPA Tier 1 equivalent
Engine Power - ISO 14396 1377 kW
Gross Power - SAE J1995 1394 kW
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Large Wheel Loaders

993K

Net Power 726 kW
Operating Weight 133668 kg
Operating Weight - Tier 2 Equivalent* 133668 kg
Rated Payload - High Lift 24.9 t
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Large Wheel Loaders

990 Series II

Net Power 466 kW
Engine Model Cat® 3412E
Gross Power 503 kW
Net Power - Caterpillar 466 kW
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Large Wheel Loaders

994H

Net Power 1079 kW
Engine Model CAT 3516B HD
Operating Weight 196650 kg
Transmission Type STICコントロ－ル式パワ－シフト
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Large Wheel Loaders

990 Series II

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Large Wheel Loaders

994D

Gross Power 1027 kW
Net Power - Caterpillar 1027 kW
Net Power - ISO 9249 1027 kW
Net Power - SAE J1349 1015 kW
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