Head to head
Equi-Trek Evolution vs Stewart GX 18-23 S
The Stewart GX 18-23 S is rated 12.8 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Stewart GX 18-23 S is rated 12.8 tonnes heavier gross.
Specifications side by side
| Equi-Trek Evolution | Stewart GX 18-23 S | |
|---|---|---|
| Gross weight | 7200kg | 20,000kg |
| Unladen weight | 4500kg | - |
| Overall length | 8.354m | - |
| Overall width | 2.375m | - |
| Overall height | 3.185m | - |
| Body size | - | 6,700 x 2,450 x 1,500mm |
| Cubic capacity | - | 23m3 grain, 39m3 silage |
| Tare weight | - | 5,900kg |
| Axles | - | 125mm dia., 10-stud, 420x180mm brakes |
Sources: Equi-Trek Evolution, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Evolution if...
A large motorised horsebox on an Iveco chassis for yards or professionals moving up to three horses or four ponies, requiring a 7.5 tonne category licence to drive. It sits toward the top of Equi-Trek's motorised range alongside the Endeavour.
Listed by
- Trek-Trailers Three Counties - Hereford
- Trek-Trailers Lincolnshire - Doncaster, Belton
Buy or hire the GX 18-23 S if...
- you want one that is rated 12.8 tonnes heavier gross
An 18-23 tonne tipping trailer built for grain and silage haulage, with an easy-sheet system so one person can cover a loaded trailer without climbing on top. Its monocoque steel body gives it the extra capacity over Stewart's standard flat trailers.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Equi-Trek Evolution and the Stewart GX 18-23 S?
The Stewart GX 18-23 S is rated 12.8 tonnes heavier gross. The Equi-Trek Evolution is a 7.2 tonne motorised horsebox for up to three horses; the Stewart GX 18-23 S is a twin-axle tipping grain and silage trailer with an easy-sheet cover system.
Can I tow the Equi-Trek Evolution or the Stewart GX 18-23 S on a car licence?
Equi-Trek Evolution and Stewart GX 18-23 S are rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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