GetBrent

Head to head

Ifor Williams LM166 vs Stewart GX14-19 S

The Ifor Williams LM166 is 4,155kg lighter empty.

Last reviewed 13 September 2026

Ifor Williams LM166
Ifor Williams LM166 - image: blains.co.uk
Stewart GX14-19 S
Stewart GX14-19 S - image: Rising Sun Trailer Hire

Key differences

Specifications side by side

Ifor Williams LM166Stewart GX14-19 S
Unladen weight795kg4950kg
Gross weight3500kg-
Payload2705kg-
Internal bed4.77m x 1.98m-
Carrying capacity-14,000kg
Cubic capacity-grain 19m3, silage 33 m3
Body-6100 x 2450 x 1370mm (GX 14 19 S)
Tipped height-6300mm

Sources: Ifor Williams LM166, Stewart GX14-19 S. 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 4,155kg 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

Full LM166 specifications →

Buy or hire the GX14-19 S if...

A large tipping trailer in Stewart's GX range, sized for muck-away and aggregate work in the 14-19 tonne bracket, fitted with an easy sheet system to cover loads without climbing on the trailer.

Listed by

Full GX14-19 S specifications →

Common questions

What is the difference between the Ifor Williams LM166 and the Stewart GX14-19 S?

The Ifor Williams LM166 is 4,155kg lighter empty. The Ifor Williams LM166 is a a long-bed flatbed trailer; the Stewart GX14-19 S is a 14 to 19 tonne tipping trailer with easy sheet.

Which is lighter, the Ifor Williams LM166 or the Stewart GX14-19 S?

The Ifor Williams LM166. It is 4,155kg lighter empty than the Stewart GX14-19 S.

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.