Specification sheet Wheel Loader Ref caterpillar-988k-millyard-arrangement-wheel-loader
Caterpillar 988K Millyard Arrangement
The Caterpillar 988K Millyard Arrangement is a wheel loader with an operating weight of 139,920 lb (63,466.65 kg), and a 541 hp engine.
✓ QA-verified — every figure checked for unit consistency, physical possibility, and class plausibility; failures withheld → Operating weight
139,920lb
63,466.65kg
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 Millyard Arrangement sits at the heavy end of its class:
- Operating weight 139,920 lb heavier than 95% (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 Technology or 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 | 139920lb | 63466.7kg |
|---|
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 Axles Specification
| Front | Fixed | |
|---|---|---|
| Rear | Trunnion | |
| Oscillation Angle | 13 degrees |
05 Brakes Specification
| Brakes | SAE J1473 OCT90, ISO 3450:1992 |
|---|
06 Operating Specifications Specification
| Tipping Load - Straight | 78115lb | 35432.4kg |
|---|---|---|
| Tipping Load - Articulated 37 Degrees | 68005lb | 30846.6kg |
07 Service Refill Capacities Specification
| Cooling System | 31.7gal | 120L |
|---|---|---|
| Fuel Tank | 188gal | 711.7L |
| 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 |
08 Hydraulic System - Lift/Tilt Specification
| Lift/Tilt System - Circuit | EH- Positive Flow Control, Flow Sharing | |
|---|---|---|
| Relief Valve Setting - Lift/Tilt | 4641 psi | |
| Cylinders, Double Acting - Lift, Bore And Stroke | 235 mm 976 mm (9.25 in 38.4 in) | |
| Cylinders, Double Acting - Tilt, Bore And Stroke | 292 mm 671 mm (11.5 in 26.4 in) | |
| Pilot System | Variable displacement piston | |
| Lift/Tilt System | Variable displacement piston | |
| Relief Valve Setting | 580 psi | |
| Maximum Flow | 13.7 gal/min | |
| Maximum Flow At 1,400-1,860 Rpm | 153 gal/min |
09 Hydraulic System - Steering Specification
| Steering System - Circuit | Pilot, load sensing | |
|---|---|---|
| Steering System - Pump | Piston, variable displacement | |
| Total Steering Angle | 74degrees | |
| 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 |
10 Sound Performance - Standard Specification
| Operator Sound Level (Iso 6396) | 71 dB(A) | |
|---|---|---|
| Machine Sound Level (Iso 6395) | 111 dB(A) |
11 Sound Performance - Suppression Specification
| Operator Sound Level (Iso 6396) | 70 dB(A) | |
|---|---|---|
| Machine Sound Level (Iso 6395) | 109 dB(A) |
12 Forks Specification
| Fork End Area | 69ft2 | 6.5m2 |
|---|
13 Dimensions - Millyard Linkage Specification
| Ground To Top Of Rops | 13.8ft in | 4.3m |
|---|---|---|
| Ground To Top Of Exhaust Stacks | 13.8ft in | 4.3m |
| Ground To Top Of Hood | 10.9ft in | 3.4m |
| Ground To Bumper Clearance | 3.1ft in | 1m |
| Rear Axle - Centerline To Bumper | 10.5ft in | 3.3m |
| Front Axle Centerline To Fork Tip | 15.6ft in | 4.8m |
| Wheel Base | 14.9ft in | 4.6m |
| Maximum Overall Length | 41ft in | 12.5m |
| Ground To Lower Hitch Clearance | 1.9ft in | 0.6m |
| Ground To Center Of Front Axle | 3.2ft in | 1m |
| Fork Height With Level Arms | 8.1ft in | 2.5m |
| Fork Top Clamp Opening | 12.3ft in | 3.8m |
| Fork Height At Maximum Lift | 15.3ft in | 4.7m |
| Hinge Pin Height At Maximum Lift | 16.1ft in | 5m |
| Dump Angle At Maximum Lift | 39.4degrees |
?Questions & answersfrom this machine's data
- How much does a Caterpillar 988K Millyard Arrangement wheel loader weigh?
- A Caterpillar 988K Millyard Arrangement wheel loader has an operating weight of 139,920 lb (63,466.7 kg).
- What engine does a Caterpillar 988K Millyard Arrangement wheel loader have?
- A Caterpillar 988K Millyard 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.