Head to head
Ifor Williams TT3621 vs Lider 39770
The Lider 39770 is 560kg lighter empty. The Ifor Williams TT3621 is rated 1.9 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 560kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 1.9 tonnes heavier gross.
Specifications side by side
| Ifor Williams TT3621 | Lider 39770 | |
|---|---|---|
| Gross weight | 3500kg | 1600kg |
| Unladen weight | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) | 430kg |
| Payload | 2510kg (195/60R12C) or 2500kg (185/70R13C) | - |
| Internal length | 3.62m / 11'9" | - |
| Internal width | 1.95m / 6'5" | - |
| Internal bed | - | 361 x 185 x 11cm |
| Axles | - | 1 |
| Brakes | - | Braked |
Sources: Ifor Williams TT3621, Lider 39770. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the TT3621 if...
- you want one that is rated 1.9 tonnes heavier gross
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 →Buy or hire the 39770 if...
- you want one that is 560kg lighter empty
A lighter single-axle car transporter for owners of small cars, motorhomes-with-tow-cars or similar, sized to be towed by a mid-range family car.
Full 39770 specifications →Common questions
What is the difference between the Ifor Williams TT3621 and the Lider 39770?
The Lider 39770 is 560kg lighter empty. The Ifor Williams TT3621 is rated 1.9 tonnes heavier gross. The Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping; the Lider 39770 is a a braked single-axle car transporter trailer rated at 1600kg gross weight..
Which is lighter, the Ifor Williams TT3621 or the Lider 39770?
The Lider 39770. It is 560kg lighter empty than the Ifor Williams TT3621.
Can I tow the Ifor Williams TT3621 or the Lider 39770 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.
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.