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Anssems GT500-151 vs Stewart GX 18-23 S

The Stewart GX 18-23 S is rated 19.5 tonnes heavier gross.

Last reviewed 13 September 2026

Anssems GT500-151
Anssems GT500-151 - image: gttowing.co.uk
GX 18-23 S
Stewart GX 18-23 S

Key differences

Specifications side by side

Anssems GT500-151Stewart GX 18-23 S
Gross weight500kg20,000kg
Internal dimensions151cm x 101cm x 48cm-
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: Anssems GT500-151, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the GT500-151 if...

A light trailer for camping gear, luggage and small DIY loads, towable behind almost any car. The hard-top version is the one most buyers want, because weatherproof and lockable is the whole reason to choose this over a builders trailer.

Full GT500-151 specifications →

Buy or hire the GX 18-23 S if...

  • you want one that is rated 19.5 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

Full GX 18-23 S specifications →

Common questions

What is the difference between the Anssems GT500-151 and the Stewart GX 18-23 S?

The Stewart GX 18-23 S is rated 19.5 tonnes heavier gross. The Anssems GT500-151 is a small single-axle luggage and general purpose 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 Anssems GT500-151 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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