Head to head
Equi-Trek Apollo vs Stewart GX 18-23 S
The Stewart GX 18-23 S is rated 18 tonnes heavier gross.
Last reviewed 13 September 2026

Key differences
- Gross weight: the Stewart GX 18-23 S is rated 18 tonnes heavier gross.
Specifications side by side
| Equi-Trek Apollo | Stewart GX 18-23 S | |
|---|---|---|
| Gross weight | 2000kg / 2600kg (depending on spec) | 20,000kg |
| Unladen weight | 845kg | - |
| 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 Apollo, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Apollo if...
Equi-Trek's smallest motorised horsebox, built to be driveable on a standard car licence in its lighter configuration. It suits owners moving up from a trailer who want a small horsebox without a 7.5 tonne licence requirement.
Listed by
- Trek-Trailers Suffolk - Bury Saint Edmunds
Buy or hire the GX 18-23 S if...
- you want one that is rated 18 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 Apollo and the Stewart GX 18-23 S?
The Stewart GX 18-23 S is rated 18 tonnes heavier gross. The Equi-Trek Apollo is a compact 2-horse motorised horsebox; 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 Apollo or the Stewart GX 18-23 S on a car licence?
Stewart GX 18-23 S is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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