Short answer: divide your van's gross vehicle weight by four and that is the minimum load rating each wheel must carry. A VW Transporter T6.1 plated at 3,200kg needs 800kg per wheel. A typical car alloy is rated 650 to 690kg. Fit those and every wheel on the van is over its limit before you load a single tool. Look for JWL-T stamped on the back, not plain JWL — the T means light truck.
This is the single most common dangerous mistake we see in van fitment, and it is almost always innocent. Someone finds a set of 20 inch wheels in 5x120, the bolt pattern matches a Transporter, the bore is right, they bolt them on and they fit perfectly. Nothing rubs. It drives fine. And the wheels are not rated to carry the van.
Bolt pattern and centre bore tell you whether a wheel will attach. Load rating tells you whether it should.
What load rating does my van actually need?
Take the gross vehicle weight from the VIN plate — the plated maximum, not the kerb weight — and divide by four. Never work from kerb weight, because a van spends its life loaded and a camper spends its life loaded permanently.
| Vehicle | Typical plated GVW | Minimum per wheel |
|---|---|---|
| Average family car | 1,900 – 2,200kg | 475 – 550kg |
| VW Transporter T5 / T6 / T6.1 | 2,800 – 3,200kg | 700 – 800kg |
| Ford Transit Custom | 2,600 – 3,400kg | 650 – 850kg |
| Converted T6 camper | 3,000 – 3,200kg, usually at the limit | 750 – 800kg |
| Full size Transit Mk8 | 3,100 – 4,700kg | 775 – 1,175kg |
Put those numbers beside a standard car alloy rated at 690kg and the problem is obvious. The gap is not marginal. On a plated 3,200kg Transporter you are roughly 110kg per corner short, which is a 16% overload on all four wheels, permanently.
Where is the load rating stamped?
On the back of the spokes or around the inside of the hub face, cast or stamped into the metal. You are looking for one of these:
- MAX LOAD 800KG or 800KG — the clearest form. Sometimes given in pounds as MAX LOAD 1764LBS.
- JWL-T — the Japanese Light Alloy Wheel standard for light trucks and vans. This is the marking that matters.
- JWL on its own — the passenger car standard. Not a van marking.
- VIA — means an independent body verified the JWL or JWL-T claim by testing. VIA alongside JWL-T is the strongest assurance you will get on an aftermarket wheel.
That JWL versus JWL-T distinction catches almost everybody. They look nearly identical cast into a spoke and they certify completely different duty cycles. JWL-T wheels are tested to higher rotary bending and radial fatigue loads specifically because vans run at their plated weight routinely rather than occasionally. If the wheel says JWL and your vehicle is a van, it is the wrong wheel no matter how well it bolts on.
If you want the full tour of every marking on the back of a wheel, we wrote that up separately in what the stamps on the back of your alloy wheel actually mean.
The tyre has a load rating too, and it is the one the MOT checks
A correctly rated wheel with an under-rated tyre is still an overloaded corner. Van tyres carry a C suffix for Commercial — written as 205/65 R16C — and two load indices rather than one, like 107/105T. The first figure is for single-wheel fitment, the second for twin rear wheels.
| Load index | Capacity per tyre | Where you see it |
|---|---|---|
| 95 | 690kg | Typical car tyre — not enough for a van |
| 102 | 850kg | Light van minimum |
| 104 | 900kg | Transporter, Transit Custom |
| 107 | 975kg | Heavier vans and campers |
| 109 | 1,030kg | Full size Transit |
This is where it becomes a legal matter rather than a judgement call. A tyre with a load index below the vehicle manufacturer's specification is an MOT failure, and it gives an insurer a straightforward reason to decline a claim after an incident. Fitting car tyres to a van because they were cheaper and the size matched is one of the few wheel-related decisions that can genuinely cost you a payout.
What fits a Transporter or a Transit?
The T5, T6 and T6.1 Transporter, Caravelle and Multivan all run 5x120 with a 65.1mm centre bore. The same bolt pattern appears on Range Rover and Discovery, which is why a Range Rover wheel will physically bolt to a Transporter — and in that particular case the load rating usually is adequate, because Range Rover wheels are rated for a heavy vehicle. Our 22x9.5" Autobiography Turbine in black machined is a 5x120 wheel carrying a high load rating for exactly that reason, and it is a popular fit on T6 conversions.
The Transit Custom and Transit Mk8 use 5x160 and 6x120 fitments — a different pattern entirely, with nothing from the car world crossing over. The Transit range and the wider van wheel range only list wheels with ratings appropriate to those vehicles. If you would rather browse by bolt pattern, the 5x120 collection covers the Transporter side.
Do wheel spacers affect the load rating?
The spacer does not change what the wheel can carry, but it does change the leverage on the hub, the bearing and the studs. On a van carrying 800kg per corner that matters more than it does on a car.
Two rules we would not bend on a van. Use hub-centric spacers, so the spacer locates on the hub and carries the load through metal-to-metal contact rather than through the bolts. And keep them modest — 15 to 20mm is sensible, beyond 25mm you should be using a wheel with the correct offset instead of correcting a wrong one. A 20mm hub-centric pair for the T5, T6 and T7 in 5x120 is the right specification for a Transporter; the full spacer range covers the other fitments.
Longer bolts are not optional with a spacer. You need the same thread engagement you started with — roughly the bolt diameter and a half, so about 21mm of thread for an M14.
What about going bigger on a camper?
A converted van sits at or near its plated weight all the time, and a 20 inch wheel on a 35 profile tyre gives you very little sidewall to absorb anything. Campers also tend to be driven loaded on poor rural roads, which is the worst possible combination for rim damage. If the conversion is for touring rather than for shows, an 18 is the wheel we would fit, with a high load index tyre.
There is also a payload consideration people forget. A bigger wheel and tyre package is heavier, and on a van already close to its plated weight, every kilogram of wheel is a kilogram you cannot carry. Four 20 inch wheels and tyres can easily weigh 20kg more than four 18s.
Questions we get asked
What does JWL-T mean on an alloy wheel?
It is the Japanese Light Alloy Wheel standard for light trucks and vans. JWL-T wheels are fatigue-tested to higher loads than plain JWL passenger car wheels because vans routinely operate at their maximum plated weight. If your vehicle is a van, JWL-T is the marking you want.
Can I fit car alloy wheels to a VW Transporter?
Only if the load rating is adequate. The 5x120 bolt pattern is shared with Range Rover and Discovery, so plenty of car wheels will physically fit, but a typical car wheel rated 650 to 690kg is below the 700 to 800kg per corner a plated Transporter needs. Check for a MAX LOAD figure or a JWL-T stamp before fitting.
How do I work out the load rating my van needs?
Divide the gross vehicle weight on the VIN plate by four. Use the plated maximum, not the kerb weight, because vans and campers operate loaded. A 3,200kg van needs a minimum of 800kg per wheel.
Is an under-rated tyre an MOT failure on a van?
Yes. A tyre with a load index below the vehicle manufacturer's specification is an MOT failure, and it also gives an insurer grounds to decline a claim. Van tyres are marked with a C for commercial and carry two load indices, such as 107/105T.
What centre bore does a VW Transporter use?
65.1mm, with a 5x120 bolt pattern, across the T5, T6 and T6.1 including Caravelle and Multivan. Any wheel with a larger bore needs spigot rings to centre it properly, and we include those free with every set.
Fitting wheels to a van or a camper? Send the make, model, year and the plated weight from the VIN plate to sales@omiwheels.com or WhatsApp +44 7753 828059, and we will confirm the load rating is right before you order. We ship from Northern Ireland, so there are no EU import charges into Ireland or mainland Europe.