Head to head
Ifor Williams P5 vs Ifor Williams TT3621
The Ifor Williams P5 is 849kg lighter empty. The Ifor Williams TT3621 is rated 3 tonnes heavier gross and carries 2,151kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 849kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 3 tonnes heavier gross.
- Payload: the Ifor Williams TT3621 carries 2,151kg more.
Specifications side by side
| Ifor Williams P5 | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 500kg | 3500kg |
| Unladen weight | 141kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | 359kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal bed | 1.53m x 1.02m | - |
| Brakes | Unbraked | - |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Ifor Williams P5, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the P5 if...
- you want one that is 849kg lighter empty
A light general-purpose trailer for domestic buyers moving garden waste, small loads or a mower, chosen for its low unladen weight so it can be towed by almost any car.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the TT3621 if...
- you want one that is rated 3 tonnes heavier gross
- you want one that carries 2,151kg more
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.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams P5 and the Ifor Williams TT3621?
The Ifor Williams P5 is 849kg lighter empty. The Ifor Williams TT3621 is rated 3 tonnes heavier gross and carries 2,151kg more. The Ifor Williams P5 is a the smallest unbraked domestic trailer Ifor Williams makes; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Ifor Williams P5 or the Ifor Williams TT3621?
The Ifor Williams P5. It is 849kg lighter empty than the Ifor Williams TT3621.
Which carries more, the Ifor Williams P5 or the Ifor Williams TT3621?
The Ifor Williams TT3621, by 2,151kg.
Can I tow the Ifor Williams P5 or the Ifor Williams TT3621 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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