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Brian James Box Van 600 vs Ifor Williams TT3621

The Ifor Williams TT3621 carries 681kg more and is rated 800kg heavier gross.

Last reviewed 13 September 2026

Brian James Box Van 600
Brian James Box Van 600 - image: Ayrshire Trailers
Ifor Williams TT3621
Ifor Williams TT3621 - image: Norfolk Trailers

Key differences

Specifications side by side

Brian James Box Van 600Ifor Williams TT3621
Gross weight2700kg3500kg
Payload1829kg2510kg (195/60R12C) or 2500kg (185/70R13C)
Internal bed3.0m x 1.6m-
AxlesTwin (12in wheels)-
Unladen weight-990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres)
Internal length-3.62m / 11'9"
Internal width-1.95m / 6'5"

Sources: Brian James Box Van 600, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Box Van 600 if...

Bought by tradespeople and small delivery operators who need goods kept dry and out of sight rather than carried on an open flatbed. Its 2700kg rating keeps it inside the range towable by many car-derived vans.

Full Box Van 600 specifications →

Buy or hire the TT3621 if...

  • you want one that carries 681kg more
  • you want one that is rated 800kg 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 →

Common questions

What is the difference between the Brian James Box Van 600 and the Ifor Williams TT3621?

The Ifor Williams TT3621 carries 681kg more and is rated 800kg heavier gross. The Brian James Box Van 600 is a a small enclosed twin-axle box van trailer; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.

Which carries more, the Brian James Box Van 600 or the Ifor Williams TT3621?

The Ifor Williams TT3621, by 681kg.

Can I tow the Brian James Box Van 600 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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