Head to head
Ifor Williams CT136 vs Ifor Williams TT3621
The Ifor Williams TT3621 is rated 2.1 tonnes heavier gross. The Ifor Williams CT136 is 590kg lighter empty.
Last reviewed 13 September 2026

Key differences
- Gross weight: the Ifor Williams TT3621 is rated 2.1 tonnes heavier gross.
- Unladen weight: the Ifor Williams TT3621 weighs 590kg more empty.
Specifications side by side
| Ifor Williams CT136 | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 1,400kg single axle / 2,000kg twin axle / 2,600kg CT136HD | 3500kg |
| Unladen weight | 400kg single axle / 495kg twin axle | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Bed | 4.00m x 1.84m | - |
| Payload | - | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Ifor Williams CT136, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the CT136 if...
- you want one that is 590kg lighter empty
The accessible end of car transport, for towing a road car, a track-day car or a small classic. Motorsport and classic-car owners tend toward the twin-axle and HD versions for the higher gross weight and the tie-down provision.
Full CT136 specifications →Buy or hire the TT3621 if...
- you want one that is rated 2.1 tonnes 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.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams CT136 and the Ifor Williams TT3621?
The Ifor Williams TT3621 is rated 2.1 tonnes heavier gross. The Ifor Williams CT136 is 590kg lighter empty. The Ifor Williams CT136 is a flatbed car transporter, single or twin axle; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Ifor Williams CT136 or the Ifor Williams TT3621?
The Ifor Williams CT136. It is 590kg lighter empty than the Ifor Williams TT3621.
Can I tow the Ifor Williams CT136 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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