Head to head
Ifor Williams GH94BT vs Ifor Williams LM166
The Ifor Williams LM166 has a bed 1.98m (6.5ft) longer and is rated 800kg heavier gross. The Ifor Williams GH94BT is 265kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Internal bed: the Ifor Williams LM166 has a bed 1.98m (6.5ft) longer.
- Unladen weight: the Ifor Williams LM166 weighs 265kg more empty.
- Gross weight: the Ifor Williams LM166 is rated 800kg heavier gross.
- Payload: the Ifor Williams LM166 carries 535kg more.
Specifications side by side
| Ifor Williams GH94BT | Ifor Williams LM166 | |
|---|---|---|
| Gross weight | 2700kg | 3500kg |
| Unladen weight | 530kg | 795kg |
| Payload | 2170kg | 2705kg |
| Internal bed | 2.79m x 1.31m | 4.77m x 1.98m |
Sources: Ifor Williams GH94BT, Ifor Williams LM166. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GH94BT if...
- you want one that is 265kg lighter empty
Chosen over the standard GH94 by operators who want the heavier-duty BT chassis and tyres for regular loaded towing rather than occasional use, at the cost of a little unladen weight and payload.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Buy or hire the LM166 if...
- you want one that has a bed 1.98m (6.5ft) longer
- you want one that is rated 800kg heavier gross
- you want one that carries 535kg more
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
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Ifor Williams GH94BT and the Ifor Williams LM166?
The Ifor Williams LM166 has a bed 1.98m (6.5ft) longer and is rated 800kg heavier gross. The Ifor Williams GH94BT is 265kg lighter empty. The Ifor Williams GH94BT is a a braked-tandem version of the GH94 plant trailer; the Ifor Williams LM166 is a a long-bed flatbed trailer.
Which is lighter, the Ifor Williams GH94BT or the Ifor Williams LM166?
The Ifor Williams GH94BT. It is 265kg lighter empty than the Ifor Williams LM166.
Which carries more, the Ifor Williams GH94BT or the Ifor Williams LM166?
The Ifor Williams LM166, by 535kg.
Can I tow the Ifor Williams GH94BT or the Ifor Williams LM166 on a car licence?
Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.
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