Head to head
Ifor Williams BV126 vs Stewart GX 18-23 S
The Stewart GX 18-23 S is rated 16.5 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Stewart GX 18-23 S is rated 16.5 tonnes heavier gross.
Specifications side by side
| Ifor Williams BV126 | Stewart GX 18-23 S | |
|---|---|---|
| Gross weight | 3500kg | 20,000kg |
| Axles | Twin (dual) | 125mm dia., 10-stud, 420x180mm brakes |
| Unladen weight | 980kg | - |
| Payload | 2520kg | - |
| Internal length | 3.60m | - |
| Internal width | 1.73m | - |
| Body size | - | 6,700 x 2,450 x 1,500mm |
| Cubic capacity | - | 23m3 grain, 39m3 silage |
| Tare weight | - | 5,900kg |
Sources: Ifor Williams BV126, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the BV126 if...
Aimed at businesses moving bulkier equipment or several machines that need to travel enclosed and secure, where the BV105 is too narrow or too light. Its 3500kg rating means a car-derived van or 4x4 with a suitable tow rating can still pull it.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Universal Trailers - Billingshurst
Buy or hire the GX 18-23 S if...
- you want one that is rated 16.5 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 Ifor Williams BV126 and the Stewart GX 18-23 S?
The Stewart GX 18-23 S is rated 16.5 tonnes heavier gross. The Ifor Williams BV126 is a a wider, higher-capacity enclosed box van trailer; 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 Ifor Williams BV126 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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