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.
Net Power | — |
Operating Weight | — |
Bucket Capacities | 4.7-13 m3 (6.2-17 yd3) |
Net Power | — |
Engine Model | Cat® C18 ™ |
Bore | — |
Stroke | — |
Displacement | — |
Torque Rise | — |
Rated Speed | 1700/min |
Peak Torque - 1,200 rpm | — |
Net Power - SAE J1349:2011 | — |
Peak Power Speed | 1500/min |
Peak Power Speed - 1,500 rpm - Gross - ISO 14396 | — |
Gross - ISO 14396 | — |
Peak Power Speed - 1,500 rpm - Gross - SAE J1995 | — |
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 | — |
Operating Weight | — |
Bucket Capacity Range | 4.7-13 m3 (6.2-17 yd3) |
Rated Payload - Quarry Face | — |
Cat Truck Match - High Lift | 773~775 |
Rated Payload - Loose Material | — |
Cat Truck Match - Standard | 770~772 |
Transmission Type | Cat-Planetenlastschaltgetriebe |
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 | Lock-up disabled |
Direct Drive - Forward 3 | — |
Direct Drive - Forward 4 | — |
Maximum Flow | — |
Maximum Flow at 1,400-1,860 rpm | — |
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 | — |
Relief Valve Setting - Lift/Tilt | — |
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 |
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 | — |
Bucket Capacities | 4.7-13 m3 (6.2-17 yd3) |
Front | Fixed |
Rear | Trunnion |
Oscillation Angle | 13 ° |
Brakes | SAE J1473 OKT90, ISO 3450:1992 |
Steering System - Pump | Piston, variable displacement |
Total Steering Angle | 86 ° |
Maximum Flow | — |
Relief Valve Setting - Steering | — |
Steering Cycle Times - High Idle | — |
Steering System - Circuit | Pilot, load sensing |
Steering Cycle Times - Low Idle | — |
Total Hydraulic Cycle Time - Empty Bucket | — |
Lower Float Down | — |
Rack Back | — |
Raise | — |
Dump | — |
Operator Sound Level (ISO 6396) | — |
Machine Sound Level (ISO 6395) | — |
Machine Sound Level (ISO 6395) | — |
Operator Sound Level (ISO 6396) | — |
Operator Sound Level (ISO 6396) | — |
Machine Sound Level (ISO 6395) | — |
Machine Sound Level (ISO 6395) | — |
Operator Sound Level ( ISO 6396) | — |
Featuring all new Advanced Productivity Electronic Control Shifting (APECS) transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.
To ensure long life and reliability, the linkage pin joints feature a greased pin design with an auto lube system attachment available from the factory.
Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.
Integrated electronics provide flexible levels of information to both the site and the operator. This integration creates a smart machine and more informed operator, maximizing the productivity of both.
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.
For full truck payloads with minimum loading time, an efficient loading/hauling system starts with a perfect match. Cat wheel loaders are matched with Cat off-highway trucks to maximize volume of material moved at the lowest operating cost per ton. The 988K equipped with the standard linkage will pass match the 770 (36 tonnes/40 tons) in 3 passes and the 772 (45 tonnes/50 tons) in 4 passes. Equipped with a high lift linkage the 988K is capable of loading a 773 (56 tonnes/61.7 tons) in 5 passes and the 775 (64 tonnes/70 tons) in 6 passes.
Enhance the productivity of your loader and protect your investment in buckets with our Ground Engaging Tools (GET). Your knowledgeable Cat dealer will work with you to understand your application and needs for the GET that is best for you.
Performance Series Buckets feature an optimized profile maximizing material retention and minimizing dig time, translating into significant productivity and fuel efficiency improvements. All 988K buckets are manufactured with the Performance Series design.
Applications: Face loading tightly compacted pit materials.
Applications: Loading loose, stockpiled material.
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