
Isuzu Additional Axle Conversion
The ISUZU NPR 3D, ISUZU NQR 3D and ISUZU TORA are the main vehicles on which we carry out additional axle conversions. We carry out the modification using the original components used by the vehicle manufacturer.
An additional axle for your Isuzu
By fitting an additional axle we increase the net payload of your Isuzu, and we carry out this modification using the original components used by the vehicle manufacturer.
With an additional axle, the Isuzu TORA and TORA Long reach a gross vehicle weight of 21 tonnes. On the Isuzu NPR 3D and NQR 3D, an additional axle with axle lift takes the vehicle from 12,500 kg to 16,000 kg.
We manufacture the additional axles we use ourselves: the bearings, hubs and calipers are the same as those on the drive axle of your ISUZU.
- Isuzu TORA: now 21 tonnes
- Isuzu NPR 3D / NQR 3D: now 16 tonnes
- Additional axle and axle lift
- Standard and Long chassis options

Isuzu TORA additional axle technical specifications
| Specification | TORA | TORA Long |
|---|---|---|
| Dimensions (mm) | ||
| Wheelbase | 3,900 | 4,660 |
| Length (excluding body) | 8,120 | 9,226 |
| Front overhang | 1,170 | 1,170 |
| Rear overhang (with body, max.) | 2,106 | 2,446 |
| Rear axle spacing | 1,350 | 1,350 |
| Start of body – end of bumper | 6,300 | 7,400 |
| Maximum length | 8,526 | 9,626 |
| Maximum width | 2,550 | 2,550 |
| Min. body length | 6,200 | 7,300 |
| Max. body length | 6,700 | 7,800 |
| Weights (kg) | ||
| Gross vehicle weight (GVW) | 21,000 | 21,000 |
| Kerb weight | 5,400 | 5,540 |
| Payload (carrying capacity) | 15,600 | 15,460 |
| Front axle capacity | 5,500 | 5,500 |
| 1st rear axle capacity | 10,900 | 10,900 |
| 2nd rear axle capacity | 9,000 | 9,000 |
Kerb weight: the weight including a 75 kg driver, with all fluids and a full fuel tank. The weighbridge tolerance permitted by the highways authority is not included. Figures are taken from our Isuzu catalogue.
Isuzu NPR 3D and NQR 3D additional axle technical specifications
ISUZU NPR 3D, NQR 3D: from 12,500 kg to 16,000 kg.
| Specification | NPR 3D | NPR 3D Long |
|---|---|---|
| Dimensions (mm) | ||
| Wheelbase | 3,385 | 3,815 |
| Front overhang | 1,128 | 1,128 |
| Rear overhang (with body, max.) | 1,826 | 2,335 |
| Rear axle spacing | 1,001 | 1,001 |
| Start of body – end of bumper | 5,100 | 6,000 |
| Maximum length | 7,340 | 8,250 |
| Maximum width | 2,550 | 2,550 |
| Min. body length | 5,200 | 6,250 |
| Max. body length | 5,450 | 6,400 |
| Weights (kg) | ||
| Gross vehicle weight (GVW) | 15,000 | 15,000 |
| Kerb weight | 3,600 | 3,800 |
| Payload (carrying capacity) | 11,400 | 11,200 |
| Front axle capacity | 3,400 | 3,400 |
| 1st rear axle capacity | 6,400 | 6,400 |
| 2nd rear axle capacity | 6,000 | 6,400 |
Kerb weight: the weight including a 75 kg driver, with all fluids and a full fuel tank. The weighbridge tolerance permitted by the highways authority is not included. Figures are taken from our Isuzu catalogue.
The Isuzu TORA 21-tonne additional axle and Isuzu NPR Tractor Unit 16T applications featured in our catalogues come with a warranty of 2 years or 100,000 km.
Our CataloguesThe Isuzu additional axle conversion process.
Our processes are designed to interlock with the vehicle manufacturer's, which means maximum transparency and minimum lead time.
Market and Needs Analysis
We analyse the need against technology, market, regulatory and price criteria and define a realistic solution.
3D CAD Design
Design down to the smallest detail. Using 3D CAD speeds up the transition to series production and minimises design errors.
Risk Analysis
Sustainability, maintenance and after-sales considerations are built into the design, and risks are assessed rigorously.
Prototype and Road Testing
Our dedicated prototype team prepares the vehicle; durability and long-distance road tests are carried out with our GPS-linked test equipment.
Homologation
Tests are carried out with authorised technical services, the engineering documentation (project file) is prepared and an application for certification is submitted to TSE.
Delivery
The new configuration is programmed into the vehicle's ECU using our diagnostic equipment, and the vehicle is handed over.
Isuzu additional axles: frequently asked questions
If you can't find the answer you're looking for here, write to us and our technical team will get back to you.
Ask usThe ISUZU NPR 3D, ISUZU NQR 3D and ISUZU TORA are the main vehicles on which we carry out additional axle conversions.
With an additional axle, the Isuzu TORA and TORA Long reach a gross vehicle weight of 21,000 kg. The payload is 15,600 kg on the TORA and 15,460 kg on the TORA Long.
With an additional axle and axle lift, the Isuzu NPR 3D and NQR 3D go from 12,500 kg to 16,000 kg.
The Isuzu TORA 21-tonne application featured in our catalogue comes with a warranty of 2 years or 100,000 km.
Get an additional axle quote for your Isuzu.
Tell us your model (NPR 3D, NQR 3D or TORA) and chassis type, and we'll identify the right solution for you.










