Head to head
Ifor Williams LM166 vs Stewart GX16-21 L
The Ifor Williams LM166 is 4,705kg lighter empty.
Last reviewed 13 September 2026

Key differences
- Unladen weight: the Stewart GX16-21 L weighs 4,705kg more empty.
Specifications side by side
| Ifor Williams LM166 | Stewart GX16-21 L | |
|---|---|---|
| Unladen weight | 795kg | 5,500kg |
| Gross weight | 3500kg | - |
| Payload | 2705kg | - |
| Internal bed | 4.77m x 1.98m | - |
| Carrying capacity | - | 16,000kg |
| Cubic capacity | - | grain 21m3, silage 37m3 |
| Body | - | 6700 x 2450 x 1370mm |
Sources: Ifor Williams LM166, Stewart GX16-21 L. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the LM166 if...
- you want one that is 4,705kg lighter empty
Bought by contractors and hauliers who regularly carry longer loads, such as fencing materials or several pallets, and need more deck length than the LM106 or LM126 provide.
Listed by
- East Midlands Trailers - Leicester, Thrussington
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the GX16-21 L if...
A large bulk trailer used to cart grain and root crops at harvest, with an easy sheet system to cover the load without climbing on top. Farmers hire extra units like this at harvest to move crop faster than their own trailers allow.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Ifor Williams LM166 and the Stewart GX16-21 L?
The Ifor Williams LM166 is 4,705kg lighter empty. The Ifor Williams LM166 is a a long-bed flatbed trailer; the Stewart GX16-21 L is a bulk agricultural trailer with easy sheet cover.
Which is lighter, the Ifor Williams LM166 or the Stewart GX16-21 L?
The Ifor Williams LM166. It is 4,705kg lighter empty than the Stewart GX16-21 L.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.
