Head to head
Ifor Williams CT166 vs Ifor Williams HBE506
The Ifor Williams CT166 carries 1,390kg more and is rated 1.5 tonnes heavier gross. The Ifor Williams HBE506 is 110kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams CT166 carries 1,390kg more.
- Gross weight: the Ifor Williams CT166 is rated 1.5 tonnes heavier gross.
- Unladen weight: the Ifor Williams CT166 weighs 110kg more empty.
Specifications side by side
| Ifor Williams CT166 | Ifor Williams HBE506 | |
|---|---|---|
| Gross weight | 3500kg | 2000kg |
| Unladen weight | 885kg | 775kg |
| Payload | 2615kg | 1225kg |
| Internal bed | 4.87m x 1.90m | - |
| Internal length | - | 3.26m |
| Internal width | - | 1.67m |
Sources: Ifor Williams CT166, Ifor Williams HBE506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the CT166 if...
- you want one that carries 1,390kg more
- you want one that is rated 1.5 tonnes heavier gross
Bought by garages, recovery operators and plant hire firms who load low vehicles or compact machinery by tilting the deck to ground level instead of driving up loading ramps. The narrower CT166 bed suits standard cars and single machines.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the HBE506 if...
- you want one that is 110kg lighter empty
Aimed at owners who want HB506-sized space for two horses or ponies but need a lower gross weight to stay within a smaller car's towing limit.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams CT166 and the Ifor Williams HBE506?
The Ifor Williams CT166 carries 1,390kg more and is rated 1.5 tonnes heavier gross. The Ifor Williams HBE506 is 110kg lighter empty. The Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer; the Ifor Williams HBE506 is a a lighter-weight version of the HB506 double horsebox.
Which is lighter, the Ifor Williams CT166 or the Ifor Williams HBE506?
The Ifor Williams HBE506. It is 110kg lighter empty than the Ifor Williams CT166.
Which carries more, the Ifor Williams CT166 or the Ifor Williams HBE506?
The Ifor Williams CT166, by 1,390kg.
Can I tow the Ifor Williams CT166 or the Ifor Williams HBE506 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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