Head to head
Equi-Trek Evolution vs Ifor Williams TT3621
The Ifor Williams TT3621 is 3,510kg lighter empty. The Equi-Trek Evolution is rated 3.7 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Evolution weighs 3,510kg more empty.
- Gross weight: the Equi-Trek Evolution is rated 3.7 tonnes heavier gross.
Specifications side by side
| Equi-Trek Evolution | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 7200kg | 3500kg |
| Unladen weight | 4500kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Overall length | 8.354m | - |
| Overall width | 2.375m | - |
| Overall height | 3.185m | - |
| Payload | - | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Equi-Trek Evolution, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Evolution if...
- you want one that is rated 3.7 tonnes heavier gross
A large motorised horsebox on an Iveco chassis for yards or professionals moving up to three horses or four ponies, requiring a 7.5 tonne category licence to drive. It sits toward the top of Equi-Trek's motorised range alongside the Endeavour.
Full Evolution specifications →Buy or hire the TT3621 if...
- you want one that is 3,510kg lighter empty
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 TT3621 specifications →Common questions
What is the difference between the Equi-Trek Evolution and the Ifor Williams TT3621?
The Ifor Williams TT3621 is 3,510kg lighter empty. The Equi-Trek Evolution is rated 3.7 tonnes heavier gross. The Equi-Trek Evolution is a 7.2 tonne motorised horsebox for up to three horses; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Equi-Trek Evolution or the Ifor Williams TT3621?
The Ifor Williams TT3621. It is 3,510kg lighter empty than the Equi-Trek Evolution.
Can I tow the Equi-Trek Evolution or the Ifor Williams TT3621 on a car licence?
Equi-Trek Evolution is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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