Specification sheet Wheel Loader Ref caterpillar-988k-steel-mill-arrangement-wheel-loader
Caterpillar 988K Steel Mill Arrangement
The Caterpillar 988K Steel Mill Arrangement is a wheel loader with an operating weight of 112,574 lb (51,062.72 kg), and a 541 hp engine.
✓ QA-verified — every figure checked for unit consistency, physical possibility, and class plausibility; failures withheld → Operating weight
112,574lb
51,062.72kg
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 Steel Mill Arrangement sits above the median for its class:
- Operating weight 112,570 lb heavier than 64% (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 | 1,500 rpm | |
| Peak Power Speed - 1,500 Rpm - Gross - Iso 14396 | 580hp | 432.6kw |
| Peak Power Speed - 1,500 Rpm - Gross - Sae J1995 | 588hp | 438.5kw |
| Peak Power Speed - 1,500 Rpm - Net Power - Sae J1349 | 541hp | 403.5kw |
02 Operational Specification
| Operating Weight | 112574lb | 51062.8kg |
|---|
03 Transmission Specification
| Transmission Type | Cat planetary power shift | |
|---|---|---|
| Forward - 1 | 4mph | 6.5km/h |
| Forward - 2 | 7.2mph | 11.6km/h |
| Forward - 3 | 12.7mph | 20.5km/h |
| Forward - 4 | 21.6mph | 34.8km/h |
| Reverse - 1 | 4.7mph | 7.6km/h |
| Reverse - 2 | 8.3mph | 13.4km/h |
| Direct Drive - Forward 3 | 13.9mph | 22.4km/h |
| Direct Drive - Reverse 3 | 15.8mph | 25.5km/h |
| Direct Drive - Forward 4 | 24.4mph | 39.3km/h |
| Direct Drive - Forward 2 | 7.8mph | 12.6km/h |
| Direct Drive - Reverse 2 | 8.9mph | 14.4km/h |
| Direct Drive - Forward 1 | Lock-up disabled | |
| Direct Drive - Reverse 1 | 5mph | 8.1km/h |
| Reverse - 3 | 14.4mph | 23.2km/h |
04 Buckets Specification
| Bucket Capacities | 5.4-6.3 m3 (7.0-8.3 yd3) |
|---|
05 Axles Specification
| Front | Fixed | |
|---|---|---|
| Rear | Trunnion | |
| Oscillation Angle | 6 degrees |
06 Brakes Specification
| Brakes | SAE J1473 OCT90, ISO 3450:1992 |
|---|
07 Operating Specifications Specification
| Bucket Capacity Range | 6.4-7.6 m3 (8.3-10 yd3) | |
|---|---|---|
| Cat Truck Match - Standard | 770-772 | |
| Cat Truck Match - High Lift | 773-775 | |
| Rated Payload | 27557.8lb | 12500kg |
| Rated Payload - Standard | 27557.8lb | 12500kg |
| Rated Payload - High Lift | 27557.8lb | 12500kg |
08 Service Refill Capacities Specification
| Cooling System | 31.7gal | 120L |
|---|---|---|
| Fuel Tank | 181gal | 685.2L |
| Crankcase | 15.9gal | 60.2L |
| 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 |
| Diesel Exhaust Fluid Tank (Tier 4) | 8.7gal | 33L |
09 Hydraulic System - Lift/Tilt Specification
| Lift/Tilt System - Circuit | EH- Positive Flow Control, Flow Sharing | |
|---|---|---|
| Relief Valve Setting - Lift/Tilt | 4757 psi | |
| Cylinders, Double Acting - Lift, Bore And Stroke | 210 mm 1050 mm (8.3 in 41.3 in) | |
| Cylinders, Double Acting - Tilt, Bore And Stroke | 267 mm 685 mm (10.5 in 27.0 in) | |
| Pilot System | Variable displacement piston | |
| Lift/Tilt System | Variable displacement piston | |
| Relief Valve Setting | 551 psi | |
| Maximum Flow | 13.7 gal/min | |
| Maximum Flow At 1,400-1,860 Rpm | 153 gal/min |
10 Hydraulic System - Steering Specification
| Steering System - Circuit | Pilot, load sensing | |
|---|---|---|
| Steering System - Pump | Piston, variable displacement | |
| Total Steering Angle | 80degrees | |
| Relief Valve Setting - Steering | 4351 psi | |
| Steering Cycle Times - Low Idle | 5.6 s | |
| Steering Cycle Times - High Idle | 3.4 s | |
| Maximum Flow | 71.3 gal/min |
11 Sound Performance - Standard Specification
| Operator Sound Level (Iso 6396) | 71 dB(A) | |
|---|---|---|
| Machine Sound Level (Iso 6395) | 111 dB(A) |
12 Sound Performance - Suppression Specification
| Operator Sound Level (Iso 6396) | 70 dB(A) | |
|---|---|---|
| Machine Sound Level (Iso 6395) | 109 dB(A) |
13 Hydraulic Cycle Time (1,400-1,860 Rpm) Specification
| Rack Back | 4.5 s | |
|---|---|---|
| Raise | 8 s | |
| Dump | 2.2 s | |
| Lower Float Down | 3.5 s | |
| Total Hydraulic Cycle Time - Empty Bucket | 18.2 s |
?Questions & answersfrom this machine's data
- How much does a Caterpillar 988K Steel Mill Arrangement wheel loader weigh?
- A Caterpillar 988K Steel Mill Arrangement wheel loader has an operating weight of 112,574 lb (51,062.7 kg).
- What engine does a Caterpillar 988K Steel Mill Arrangement wheel loader have?
- A Caterpillar 988K Steel Mill Arrangement wheel loader is powered by a Cat C18 ACERT engine producing 541 hp (403.5 kW).
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.