Caterpillar M520 Goer
Series: Other models
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Caterpillar M520 Goer – military transport vehicle weighing 12,000 kg for off-road cargo and bulk-liquid transport for the US armed forces
Caterpillar is a US manufacturer of construction and earthmoving machinery. The M520 Goer grew out of this construction-machinery programme as a military transport vehicle for the US armed forces, moving cargo, fuel or other bulk liquids across unpaved terrain where an ordinary truck would fail on gradients or loose ground.
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The vehicle weighs 12,000 kg. A weight of this order calls for large-volume tyres, a sturdy axle design and a frame able to withstand the twisting loads of off-road travel without damaging the cargo or the body. Vehicles in this weight class rank among the medium-to-heavy off-road transporters of military logistics.
The M520 Goer belongs to the family of off-road transport and tanker vehicles that bring supplies to places where paved roads are absent or destroyed. Civilian truck classes, emissions stages and EU trailer rules do not apply to a US military vehicle of this kind, since it operates outside civilian road traffic and outside EU type approval.
When buying a used M520 Goer, the condition of the frame and any articulation points matters, since vehicles of this family are subjected to heavy twisting loads off-road, along with the condition of the large-volume tyres and rims, the tightness of the hydraulic cylinders where a tipping or pumping body is fitted, and frame corrosion after decades of outdoor storage. Spare parts for this military vehicle can practically only be obtained from dealers specialising in retired US military equipment.
Sources: SpecCodex-Register: Kennwerte des Modells M520 Goer, Caterpillar
Technical data
Engine
| Engine | 8, 603cc 6-cyl Diesel (192 hp)correct |
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Dimensions and weights
| Length | 9,650 mmcorrect |
|---|---|
| Length | 380 inch / 9, 65mcorrect |
| Width | 2,740 mmcorrect |
| Width | 108 inch / 2, 74mcorrect |
| Height | 2,440 mmcorrect |
| Height | 96 inch / 2, 44m (windshield down)correct |
| Wheelbase | 5,970 mm (235 inch / 5,97m)correct |
| Unladen weight | 12,000 kg (27,000 lbs / 12.000 kg)correct |
Drivetrain and chassis
| Gearbox | six-speedcorrect |
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Working data
| Fuel tank capacity | 105 gal / 420 lcorrect |
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Origin and approval
| Assembly plants | Marinette Marinecorrect |
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| Body | drop-side truckcorrect |
Other data
| Successor | Oshkosh HEMTT truck systemcorrect |
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Frequently asked questions
How much does the Caterpillar M520 Goer weigh?
The unladen weight is 12,000 kg.
What are the dimensions of the Caterpillar M520 Goer?
9,650 mm × 2,740 mm × 2,440 mm.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 20 individual figures for this model. They come from 2 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Sources: Wikipedia (retrieved August 2026) · Tractor & Construction Plant Wiki (retrieved August 2026) · How we check the data
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