Terex T790
Series: Terex Hydraulic Truck Crane
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Terex truck cranes T and TC – the heritage of Lorain, P&H, Demag and PPM: T340 to T790, TC40 and TC60, AT and MAC 25, 81 to 326 kW
In the 1990s and 2000s Terex collected crane makers the way other groups collect patents: Koehring/Lorain of Waverly, Iowa (1995), PPM of France (1995), Demag Mobile Cranes of Zweibrücken (2002) and several smaller ones, and from that puzzle came the crane programme that sits under Terex in the register. The T range – T230, T300, T340, T500, T775, T790 – are the American truck cranes from Waverly, whose number roughly gives the capacity in US tons (T340 about 40 t, T775 about 75 t), XL the long-boom version; the four-digit 2857, 3063, 3470 and 70100 follow the Lorain pattern with boom and capacity in feet and tons. TC40 and TC60 are telescopic truck cranes of the European line, AT15 and AT20 small all-terrain cranes, MAC 25 a mini crane of the Demag era and UC15 a compact crane. Terex sold Demag to Tadano in 2019 and its American crane manufacturing in 2022; the machines keep working.
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The register lists 20 versions with 80.5 to 325.9 kW from engines of 6,001 to 12,702 cm³, torque from 394 to 2,101 Nm at 1,600 to 2,800 rpm and service weights from 21,098 to 42,200 kg.
For operators the origin is decisive: a T340 is technically a Lorain successor with parts from Iowa, an AT20 a PPM descendant, a MAC 25 a Demag – manuals, parts and workshop knowledge run through the respective line.
On used cranes, operating hours separated into travel and crane duty, the condition of telescopic boom, slew ring, outriggers and ropes, the chassis with brakes and suspension and the inspection history are what count.
Sources: SpecCodex register, model data: Terex Autokrane, Terex Cranes (manufacturer)
Technical data
Engine
| Power | 506.9 hp (325.9 kW)correct |
|---|---|
| Rated speed | 1,600 rpmcorrect |
| Torque | 1,966.1 Nmcorrect |
| Speed at max. torque | 1,800 rpmcorrect |
| Displacement | 12,701.6 cm³correct |
Drivetrain and chassis
| Gearbox type | Heavy duty Allison 4070 automatic gearboxcorrect |
|---|---|
| Forward gears | 7correct |
| Reverse gears | 1correct |
| Tyre size | Front - 445/65R22.5-20 PR / Rear 315/80R22.5-20 PRcorrect |
Other data
| System voltage | 12 Vcorrect |
|---|
Frequently asked questions
How much power does the Terex T790 have?
The Terex T790 delivers 507 hp.
What engine does the Terex T790 have?
12,702 cm³ displacement.
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.
- 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.
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This page carries 11 individual figures for this model. They come from 1 recorded source; 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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Other models in this series
Sources: RitchieSpecs equipment specifications (retrieved August 2026) · How we check the data
Mobile crane in 3D section
Turn the model, look inside and click an assembly — each one is explained.
