Specification sheet Wheel Loader Ref caterpillar-988k-block-handler-arrangement-wheel-loader
Caterpillar 988K Block Handler Arrangement
The Caterpillar 988K Block Handler Arrangement is a wheel loader with an operating weight of 135,602 lb (61,508.04 kg), and a 541 hp engine.
✓ QA-verified — every figure checked for unit consistency, physical possibility, and class plausibility; failures withheld → Operating weight
135,602lb
61,508.04kg
Engine power
541hp
403.5kW
Net Power ◆Where it sits in its classpercentile · large wheel loaders
Among 39 large wheel loaders (90,000–150,000 lb), the Caterpillar 988K Block Handler Arrangement sits at the heavy end of its class:
- Operating weight 135,600 lb heavier than 92% (n=39)
- Engine power 541 hp more powerful than 84% (n=37)
01 Engine Specification
| Net Power | 541hp | 403.5kw |
|---|---|---|
| Rated Speed | 1700rpm | |
| Displacement | 1105cu in | 18.2L |
| Torque Rise | 58% | |
| Bore | 5.7in | 144.8mm |
| Stroke | 7.2in | 182.9mm |
| Emissions | U.S. EPA Tier 4 Final/EU Stage IV, Tier 2 Equivalent | |
| Net Power - Sae J1349 | 541hp | 403.5kw |
| Engine Model | Cat C18 ACERT | |
| Peak Torque - 1,200 Rpm | 2104lb ft | 2852.7Nm |
| Gross - Iso 14396 | 580hp | 432.6kw |
| Peak Power Speed | 1500 r/min | |
| Peak Power Speed - Gross - Iso 14396 | 580hp | 432.6kw |
| Peak Power Speed - Gross - Sae J1995 | 588hp | 438.5kw |
| Peak Power Speed - Net Power - Sae J1349 | 541hp | 403.5kw |
02 Operational Specification
| Operating Weight | 135602lb | 61508.1kg |
|---|
03 Transmission Specification
| Transmission Type | Cat planetary power shift | |
|---|---|---|
| Forward - 1 | 3.6mph | 5.8km/h |
| Forward - 2 | 4.5mph | 7.3km/h |
| Forward - 3 | 11.4mph | 18.4km/h |
| Forward - 4 | 19mph | 30.6km/h |
| Reverse - 1 | 4.1mph | 6.6km/h |
| Reverse - 2 | 7.3mph | 11.8km/h |
| Direct Drive - Forward 3 | 11.9mph | 19.2km/h |
| Direct Drive - Reverse 3 | 13.7mph | 22.1km/h |
| Direct Drive - Forward 4 | 21mph | 33.8km/h |
| Direct Drive - Forward 2 | 6.7mph | 10.8km/h |
| Direct Drive - Reverse 2 | 7.7mph | 12.4km/h |
| Direct Drive - Forward 1 | Lock-up disabled | |
| Direct Drive - Reverse 1 | 4.3mph | 7km/h |
| Reverse - 3 | 13mph | 21km/h |
04 Axles Specification
| Front | Fixed | |
|---|---|---|
| Rear | Trunnion | |
| Oscillation Angle | 13 degrees |
05 Brakes Specification
| Brakes | SAE J1473 OCT90, ISO 3450:1992 |
|---|
06 Service Refill Capacities Specification
| Cooling System | 31.7gal | 120L |
|---|---|---|
| Fuel Tank | 188.1gal | 712.1L |
| Crankcase | 15.9gal | 60.2L |
| Diesel Exhaust Fluid Tank | 8.7gal | 33L |
| Transmission | 31.7gal | 120L |
| Differential - Final Drives - Front | 49.1gal | 185.9L |
| Differential - Final Drives - Rear | 49.1gal | 185.9L |
| Hydraulic System Factory Fill | 125.5gal | 475.1L |
| Hydraulic System - Tank Only | 63.4gal | 240L |
07 Hydraulic Cycle Times Specification
| Raise | 8 s | |
|---|---|---|
| Dump | 2.2 s | |
| Lower Float Down | 3.5 s | |
| Rack Back | 4.5 s | |
| Total Hydraulic Cycle Time - Empty Bucket | 18.2 s |
08 Hydraulic System - Lift/Tilt Specification
| Lift/Tilt System - Circuit | Pilot operated - EH control, flow sharing | |
|---|---|---|
| Relief Valve Setting - Lift/Tilt | 4757 psi | |
| Cylinders, Double Acting - Lift, Bore And Stroke | 235 mm 976 mm (9.3 in 38.4 in) | |
| Cylinders, Double Acting - Tilt, Bore And Stroke | 291 mm 671 mm (11.5 in 26.4 in) | |
| Pilot System | Variable displacement piston | |
| Lift/Tilt System | Variable displacement piston | |
| Relief Valve Setting | 551 psi | |
| Maximum Flow At 1,400-1,860 Rpm | 153 gal/min | |
| Maximum Flow At 1,700 Rpm | 13.7 gal/min |
09 Hydraulic System - Steering Specification
| Steering System - Circuit | Pilot, load sensing | |
|---|---|---|
| Steering System - Pump | Piston, variable displacement | |
| Total Steering Angle | 86degrees | |
| Relief Valve Setting - Steering | 4641 psi | |
| Steering Cycle Times - Low Idle | 5.6 s | |
| Steering Cycle Times - High Idle | 3.4 s | |
| Maximum Flow | 74 gal/min |
10 Sound Performance - Standard Specification
| Interior Sound Level | 71 dB(A) | |
|---|---|---|
| Exterior Sound Level | 111 dB(A) |
11 Sound Performance - Suppression Specification
| Interior Sound Level | 70 dB(A) | |
|---|---|---|
| Exterior Sound Level | 109 dB(A) |
Method. Figures are manufacturer reference specifications, not measurements. Every value is checked for unit consistency, physically possible magnitude, and plausibility for its equipment class before publication; figures that fail any check are withheld rather than shown, and figures reconstructed from related data are marked above. Imperial and metric figures are reproduced as published, except where a note states otherwise.