Head to head
Ifor Williams GP126 vs Lider 39920
The Ifor Williams GP126 is rated 2,750kg heavier gross and is 1.36m (4.5ft) longer inside. The Lider 39920 is 410kg lighter empty.
Last reviewed 13 September 2026

Key differences
- Gross weight: the Ifor Williams GP126 is rated 2,750kg heavier gross.
- Unladen weight: the Ifor Williams GP126 weighs 410kg more empty.
- Internal length: the Ifor Williams GP126 is 1.36m (4.5ft) longer inside.
- Internal width: the Ifor Williams GP126 is 43cm (1.5ft) wider inside.
Specifications side by side
| Ifor Williams GP126 | Lider 39920 | |
|---|---|---|
| Gross weight | 3500kg | 750kg |
| Unladen weight | 780kg (skids) or 795kg (ramp) | 370kg |
| Internal length | 3.66m/12' | 230cm |
| Internal width | 1.78m/5'10" | 135cm |
| Internal height | - | 157cm |
| Axles | - | 1 |
| Brakes | - | Unbraked |
Sources: Ifor Williams GP126, Lider 39920. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GP126 if...
- you want one that is rated 2,750kg heavier gross
- you want one that is 1.36m (4.5ft) longer inside
- you want one that is 43cm (1.5ft) wider inside
A twin-axle general purpose trailer from Ifor Williams's plant range, used to carry mini diggers, dumpers and other small plant, or general building materials. Available with loading ramps or skids.
Listed by
- East Midlands Trailers - Leicester, Thrussington
Buy or hire the 39920 if...
- you want one that is 410kg lighter empty
The smallest box van in the range, for buyers who want lockable, weatherproof storage on the move without moving up to a braked twin-axle trailer.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams GP126 and the Lider 39920?
The Ifor Williams GP126 is rated 2,750kg heavier gross and is 1.36m (4.5ft) longer inside. The Lider 39920 is 410kg lighter empty. The Ifor Williams GP126 is a general purpose plant trailer; the Lider 39920 is a an unbraked single-axle enclosed box van trailer rated at 750kg gross weight..
Which is lighter, the Ifor Williams GP126 or the Lider 39920?
The Lider 39920. It is 410kg lighter empty than the Ifor Williams GP126.
Can I tow the Ifor Williams GP126 or the Lider 39920 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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