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Head to head

Ifor Williams CT136HD vs Ifor Williams TT3621

The Ifor Williams CT136HD is 480kg lighter empty and is 38cm (1ft) longer inside. The Ifor Williams TT3621 is rated 900kg heavier gross and is 11cm wider inside.

Last reviewed 13 September 2026

CT136HD
Ifor Williams CT136HD
Ifor Williams TT3621
Ifor Williams TT3621 - image: Norfolk Trailers

Key differences

Specifications side by side

Ifor Williams CT136HDIfor Williams TT3621
Gross weight2,600kg3500kg
Unladen weight510kg990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres)
Internal length4.0m3.62m / 11'9"
Internal width1.84m1.95m / 6'5"
Payload-2510kg (195/60R12C) or 2500kg (185/70R13C)

Sources: Ifor Williams CT136HD, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the CT136HD if...

  • you want one that is 480kg lighter empty
  • you want one that is 38cm (1ft) longer inside

The CT136HD suits recovery operators, racers and dealers who need a tougher car transporter than the standard CT136, thanks to its heavy-duty beam axles and multi-leaf suspension. Its 4.0m bed and 2.6 tonne gross weight cover most road cars without the cost of a beavertail trailer.

Listed by

Full CT136HD specifications →

Buy or hire the TT3621 if...

  • you want one that is rated 900kg heavier gross
  • you want one that is 11cm wider 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

Full TT3621 specifications →

Common questions

What is the difference between the Ifor Williams CT136HD and the Ifor Williams TT3621?

The Ifor Williams CT136HD is 480kg lighter empty and is 38cm (1ft) longer inside. The Ifor Williams TT3621 is rated 900kg heavier gross and is 11cm wider inside. The Ifor Williams CT136HD is a ifor Williams' heavy-duty twin-axle car transporter trailer in the CT136 range, built for moving a single vehicle.; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.

Which is lighter, the Ifor Williams CT136HD or the Ifor Williams TT3621?

The Ifor Williams CT136HD. It is 480kg lighter empty than the Ifor Williams TT3621.

Can I tow the Ifor Williams CT136HD 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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