Model against model
Ifor Williams HB610 vs Ifor Williams TT3621
Two models people put on the same shortlist. Every figure below is sourced, and where one side has a specification the other does not publish, the row is left out rather than filled with a guess.
Last reviewed 13 September 2026
| Ifor Williams HB610 | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 1450kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | 2050kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal length | 4.25m | 3.62m / 11'9" |
| Internal width | 2.07m | 1.95m / 6'5" |
Only specifications published for both models appear here. Full Ifor Williams HB610 figures and full Ifor Williams TT3621 figures.
Choose the HB610 if...
Bought by owners with two large horses, up to 17.2hh, who need the widest and roomiest trailer Ifor Williams builds at 3500kg, rather than stepping up to a horsebox lorry.
Full specifications →Choose the TT3621 if...
The largest Ifor Williams tipper. A 3.6m by 1.95m body is chosen for bulky, lighter loads - green waste, clearance and bark - where volume runs out before weight does, and it is a staple of plant and tool hire fleets. Formerly sold as the TT126.
Full specifications →Common questions
What is the difference between the Ifor Williams HB610 and the Ifor Williams TT3621?
Ifor Williams HB610: Bought by owners with two large horses, up to 17.2hh, who need the widest and roomiest trailer Ifor Williams builds at 3500kg, rather than stepping up to a horsebox lorry. Ifor Williams TT3621: The largest Ifor Williams tipper. A 3.6m by 1.95m body is chosen for bulky, lighter loads - green waste, clearance and bark - where volume runs out before weight does, and it is a staple of plant and tool hire fleets. Formerly sold as the TT126.
Are these figures reliable?
Every figure on this page was read off a manufacturer or established dealer page and is linked to its source. Anything we could not verify is left out rather than estimated. Specifications change by model year and configuration, so confirm with the supplier before relying on them.
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