Large Wheel Loaders

Cat 988K

Operating Weight
51t
Power
432kW (580hp)
Reach
2,074mm

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.

Specifications

Operating Weight
51t
Power
432kW (580hp)
Reach
2,074mm
Payload
12.5t
Bucket Capacity
13m³
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Specifications

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

How does the 988K Compare?

  • Cat 988K
    Wheel Loaders Cat 988K
    Operating Weight
    51t
    Power
    432kW (580hp)
    Reach
    2,074mm
    SELECTED MODEL

    Add to favourites Remove from favourites {1C83791D-AF20-422B-BE6C-E510589CC1DC}

  • Cat 986K
    Wheel Loaders Cat 986K
    Operating Weight
    44.8t
    Power
    335kW (449hp)
    Reach
    2,175mm

    Add to favourites Remove from favourites {1F9E7600-626B-4B74-8070-FDCF1214971A}

  • Cat 990K
    Wheel Loaders Cat 990K
    Operating Weight
    80.9t
    Power
    561kW (752hp)
    Reach
    2,194mm

    Add to favourites Remove from favourites {826FFFD1-404C-4ADB-8887-91C4DE95BED8}

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