Head to head
Brian James A4 Transporter vs Ifor Williams TT3621
The Brian James A4 Transporter is 220kg lighter empty. The Ifor Williams TT3621 is rated 500kg heavier gross and carries 280kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 220kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 500kg heavier gross.
- Payload: the Ifor Williams TT3621 carries 280kg more.
Specifications side by side
| Brian James A4 Transporter | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 3000kg | 3500kg |
| Unladen weight | 770kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | 2230kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal bed | 4.5m x 2.0m | - |
| Axles | Twin axle | - |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Brian James A4 Transporter, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the A4 Transporter if...
- you want one that is 220kg lighter empty
The A4 Transporter suits driving schools, small dealers and enthusiasts who need to move one car at a time behind a car-derived tow vehicle, offering a simple twin-axle bed without the cost of a beavertail or enclosed body. Its compact size makes it easier to store and manoeuvre than the longer trailers in the A Transporter range.
Listed by
- Compass Trailers - Lewes, Ringmer
- Saxons Trailers - Westerham, Biggin Hill
- R M Trailer Centre - Middlesbrough, North Ormesby
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Buy or hire the TT3621 if...
- you want one that is rated 500kg heavier gross
- you want one that carries 280kg 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 Brian James A4 Transporter and the Ifor Williams TT3621?
The Brian James A4 Transporter is 220kg lighter empty. The Ifor Williams TT3621 is rated 500kg heavier gross and carries 280kg more. The Brian James A4 Transporter is a twin-axle open car transporter trailer from Brian James' A Transporter range, built for towing one car on a 4.5m bed.; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Brian James A4 Transporter or the Ifor Williams TT3621?
The Brian James A4 Transporter. It is 220kg lighter empty than the Ifor Williams TT3621.
Which carries more, the Brian James A4 Transporter or the Ifor Williams TT3621?
The Ifor Williams TT3621, by 280kg.
Can I tow the Brian James A4 Transporter 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.
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.