Construction
& Heavy
Power, Attachments
& Support
Utility, Lifting &
Material Handling
988
The Cat® 988 Wheel Loader helps you move more material in less time, at a low cost per ton, for a fast return on your investment. This machine offers significant fuel savings with durability to achieve multiple lifecycles.
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 low cost per ton. Introduced in 1963, the 988 has been an industry leader for 60 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 988 continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.
Brochures and Spec Sheets
Gallery
Specifications
| Specification | Value | Unit |
|---|---|---|
| Engine Power - ISO 14396:2002 | 580 | hp |
| Engine Model | ||
| Rated Speed | ||
| Peak Power Speed | ||
| Gross Power - SAE J1995:2014 | 588 | hp |
| Net Power - SAE J1349:2011 | 538 | hp |
| Bore | 5.7 | in |
| Stroke | 7.2 | in |
| Displacement | 1105 | in³ |
| Peak Torque - 1,200 rpm | 2104 | lbf·ft |
| Torque Rise | 58 | % |
| Note (1) | ||
| Note (2) | ||
| Operating Weight | 112,574 | lb |
| Bucket Capacity Range | ||
| Rated Payload - Quarry Face | 12.5 | t |
| Rated Payload - Loose Material | 16 | t |
| Cat Truck Match - Standard | ||
| Cat Truck Match - High Lift | ||
| Transmission Type | ||
| Forward - 1 | 4.0 | mile/h |
| Forward - 2 | 7.2 | mile/h |
| Forward - 3 | 12.7 | mile/h |
| Forward - 4 | 21.6 | mile/h |
| Reverse - 1 | 4.7 | mile/h |
| Reverse - 2 | 8.3 | mile/h |
| Reverse - 3 | 14.4 | mile/h |
| Direct Drive - Forward 1 | ||
| Direct Drive - Forward 2 | 7.8 | mile/h |
| Direct Drive - Forward 3 | 13.9 | mile/h |
| Direct Drive - Forward 4 | 24.4 | mile/h |
| Direct Drive - Reverse 1 | 5.0 | mile/h |
| Direct Drive - Reverse 2 | 8.9 | mile/h |
| Direct Drive - Reverse 3 | 15.8 | mile/h |
| Lift/Tilt System - Circuit | ||
| Lift/Tilt System - Pump | ||
| Maximum Flow at 1,400-1,860 rpm | 153 | gpm |
| Relief Valve Setting - Lift/Tilt | 4757 | psi |
| Cylinders, Double Acting - Lift, Bore and Stroke | ||
| Cylinders, Double Acting - Tilt, Bore and Stroke | ||
| Pilot System | ||
| Relief Valve Setting - Main | 551 | psi |
| Rack Back | 4.5 | s |
| Raise | 8.0 | s |
| Dump | 2.2 | s |
| Lower Float Down | 3.5 | s |
| Total Hydraulic Cycle Time - Empty Bucket | 18.2 | s |
| Steering System - Circuit | ||
| Steering System - Pump | ||
| Maximum Flow at 1,400-1,600 rpm | 71.3 | gpm |
| Relief Valve Setting - Steering | 4351 | psi |
| Total Steering Angle | ||
| Steering Cycle Times - High Idle | 3.4 | s |
| Steering Cycle Times - Low Idle | 5.6 | s |
| Air Conditioning | ||
| Front | ||
| Rear | ||
| Oscillation Angle | ||
| Brakes | ||
| ROPS/FOPS | ||
| Operator Sound Pressure Level (ISO 6396:2008) | 73 | dB(A) |
| Machine Sound Power Level (ISO 6395:2008) | 111 | dB(A) |
| Operator Sound Pressure Level (ISO 6396:2008)* | 72 | dB(A) |
| Machine Sound Power Level (ISO 6395:2008)** | 109 | dB(A) |
| Note (1) | ||
| Note (2) | ||
| Note (3) | ||
| Note (4) | ||
| Note (5) | ||
| Operator Sound Pressure Level (ISO 6396:2008) | 73 | dB(A) |
| Machine Sound Power Level (ISO 6395:2008) | 112 | dB(A) |
| Operator Sound Pressure Level (ISO 6396:2008)* | 72 | dB(A) |
| Machine Sound Power Level (ISO 6395:2008)** | 110 | dB(A) |
| Note (1) | ||
| Note (2) | ||
| Note (3) | ||
| Note (4) | ||
| Note (5) | ||
| Fuel Tank | 188 | gal (US) |
| Cooling System | 31.7 | gal (US) |
| Coolant (Validated by Test Cell Fill Quantities) | 33 | gal (US) |
| Crankcase | 15.9 | gal (US) |
| Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage V Only) | 8.7 | gal (US) |
| Transmission | 24.3 | gal (US) |
| Transmission - Validated by Test Cell Fill Quantities | 29 | gal (US) |
| Differential - Final Drives - Front | 49.1 | gal (US) |
| Differential - Final Drives - Rear | 49.1 | gal (US) |
| Hydraulic System Factory Fill | 125.5 | gal (US) |
| Hydraulic System - Tank Only | 63.4 | gal (US) |
| Note | ||
| Ground to Top of ROPS | 13.8 | ft |
| Ground to Top of Exhaust Stacks | 14.8 | ft |
| Ground to Top of Hood | 10.9 | ft |
| Rear Axle - Centerline to Bumper | 10.5 | ft |
| Front Axle Centerline to Bucket Tip | 14 | ft |
| Wheel Base | 14.9 | ft |
| Maximum Overall Length | 39.3 | ft |
| Ground to Lower Hitch Clearance | 1.9 | ft |
| Clearance at Maximum Lift | 11.9 | ft |
| B-Pin Height - Maximum Lift | 18.0 | ft |
| Maximum Overall Height - Bucket Raised | 24.5 | ft |
| Reach - Maximum Lift | 6.5 | ft |
| Ground to Top of ROPS | 13.8 | ft |
| Ground to Top of Exhaust Stacks | 14.8 | ft |
| Ground to Top of Hood | 10.9 | ft |
| Rear Axle - Centerline to Bumper | 10.5 | ft |
| Front Axle Centerline to Bucket Tip | 15.3 | ft |
| Wheel Base | 14.9 | ft |
| Maximum Overall Length | 40.7 | ft |
| Ground to Lower Hitch Clearance | 1.9 | ft |
| Clearance at Maximum Lift | 13.3 | ft |
| B-Pin Height - Maximum Lift | 19.3 | ft |
| Maximum Overall Height - Bucket Raised | 25.8 | ft |
| Reach - Maximum Lift | 6.8 | ft |
Standard Equipment
- NOTE
- ELECTRICAL
- OPERATOR ENVIRONMENT
- POWERTRAIN
- ADDITIONAL EQUIPMENT
Optional Equipment
- NOTE
- POWERTRAIN
- OPERATOR ENVIRONMENT
- ADDITIONAL EQUIPMENT
- OTHER OPTIONAL CONFIGURATIONS
