Head to head
Ifor Williams TT3621 vs Lider 38398
The Lider 38398 is 530kg lighter empty. The Ifor Williams TT3621 is rated 1 tonnes heavier gross and is 45cm (1.5ft) wider inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 530kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 1 tonnes heavier gross.
- Internal width: the Ifor Williams TT3621 is 45cm (1.5ft) wider inside.
- Internal length: the Ifor Williams TT3621 is 62cm (2ft) longer inside.
Specifications side by side
| Ifor Williams TT3621 | Lider 38398 | |
|---|---|---|
| Gross weight | 3500kg | 2500kg |
| Unladen weight | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) | 460kg |
| Internal length | 3.62m / 11'9" | 300cm |
| Internal width | 1.95m / 6'5" | 150cm |
| Payload | 2510kg (195/60R12C) or 2500kg (185/70R13C) | - |
| Internal height | - | 50cm |
| Axles | - | 2 |
| Brakes | - | Braked |
Sources: Ifor Williams TT3621, Lider 38398. 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 tonnes heavier gross
- you want one that is 45cm (1.5ft) wider inside
- you want one that is 62cm (2ft) longer inside
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 38398 if...
- you want one that is 530kg lighter empty
A high-sided twin-axle general purpose trailer for builders and landscapers clearing large volumes of light bulky waste, with over two tonnes of rated payload.
Full 38398 specifications →Common questions
What is the difference between the Ifor Williams TT3621 and the Lider 38398?
The Lider 38398 is 530kg lighter empty. The Ifor Williams TT3621 is rated 1 tonnes heavier gross and is 45cm (1.5ft) wider inside. The Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping; the Lider 38398 is a a braked twin-axle general purpose trailer rated at 2500kg gross weight..
Which is lighter, the Ifor Williams TT3621 or the Lider 38398?
The Lider 38398. It is 530kg lighter empty than the Ifor Williams TT3621.
Can I tow the Ifor Williams TT3621 or the Lider 38398 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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