Model against model
Ifor Williams GX126 vs Ifor Williams TT3621
Two models people put on the same shortlist. Every figure below is sourced, and where one side has a specification the other does not publish, the row is left out rather than filled with a guess.
Last reviewed 13 September 2026
| Ifor Williams GX126 | Ifor Williams TT3621 | |
|---|---|---|
| Internal length | 3.66m / 12'0" | 3.62m / 11'9" |
| Internal width | 1.84m / 6'0" | 1.95m / 6'5" |
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 765kg (Skids); 795kg (Ramp) | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | 2735kg (Skids); 2705kg (Ramp) | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
Only specifications published for both models appear here. Full Ifor Williams GX126 figures and full Ifor Williams TT3621 figures.
Choose the GX126 if...
The GX126 is Ifor Williams' mainstream plant trailer for mini diggers, dumpers and similar machinery on a single-axle-per-side, 3500kg braked chassis. Hirers usually pick the Ramp version for self-loading and the Skids version where a separate loading ramp or forklift is already available.
Full specifications →Choose the TT3621 if...
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 specifications →Common questions
What is the difference between the Ifor Williams GX126 and the Ifor Williams TT3621?
Ifor Williams GX126: The GX126 is Ifor Williams' mainstream plant trailer for mini diggers, dumpers and similar machinery on a single-axle-per-side, 3500kg braked chassis. Hirers usually pick the Ramp version for self-loading and the Skids version where a separate loading ramp or forklift is already available. Ifor Williams TT3621: 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.
Are these figures reliable?
Every figure on this page was read off a manufacturer or established dealer page and is linked to its source. Anything we could not verify is left out rather than estimated. Specifications change by model year and configuration, so confirm with the supplier before relying on them.
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