Head to head
Bockmann KT-PB-AL 3015/27 M F vs Ifor Williams TT3621
The Ifor Williams TT3621 is rated 800kg heavier gross and is 44cm (1.5ft) wider inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams TT3621 is rated 800kg heavier gross.
- Internal width: the Ifor Williams TT3621 is 44cm (1.5ft) wider inside.
- Payload: the Ifor Williams TT3621 carries 465kg more.
- Internal length: the Ifor Williams TT3621 is 37cm (1ft) longer inside.
Specifications side by side
| Bockmann KT-PB-AL 3015/27 M F | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 2700kg | 3500kg |
| Payload | 2045kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal length | 3255mm | 3.62m / 11'9" |
| Internal width | 1515mm | 1.95m / 6'5" |
| Internal height | 2093mm | - |
| Axles | 2 | - |
| Brakes | Braked (overrun) | - |
| Unladen weight | - | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
Sources: Bockmann KT-PB-AL 3015/27 M F, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the KT-PB-AL 3015/27 M F if...
A low-loading, fully enclosed box trailer aimed at tradespeople who need to carry tools, motorbikes or equipment securely and out of the weather. The low load height makes wheeling heavy items in and out easier than a high-sided box.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the TT3621 if...
- you want one that is rated 800kg heavier gross
- you want one that is 44cm (1.5ft) wider inside
- you want one that carries 465kg more
- you want one that is 37cm (1ft) 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.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Bockmann KT-PB-AL 3015/27 M F and the Ifor Williams TT3621?
The Ifor Williams TT3621 is rated 800kg heavier gross and is 44cm (1.5ft) wider inside. The Bockmann KT-PB-AL 3015/27 M F is a low-loader box trailer with aluminium body and polyester front; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which carries more, the Bockmann KT-PB-AL 3015/27 M F or the Ifor Williams TT3621?
The Ifor Williams TT3621, by 465kg.
Can I tow the Bockmann KT-PB-AL 3015/27 M F 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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