OKO Original Off-Road
OKO Off-Road tyre sealant seals punctures up to 12mm as you drive, keeping tractors, harvesters and loaders working instead of standing still.
How much do you need?
Any format works — e.g. 165/70R16 · 180/55 ZR17 · 30.00/65 R33 · 4-9 · 13x5.00-6
Free UK delivery over £30 — 2–3 business days.
Outside the UK, OKO sells through local distributors.
Find a distributorIn the UK? You can buy direct from OKO —
This size also needs the OKO Tyre Sealant Injector 150ml — ask your distributor.
This size also needs the Metallic Application Pump for 25L Drums — ask your distributor.
Specification
- Seals punctures to
- 12mm
- Suits
- Tubeless & inner tube
- Base
- Water-based
- Rims
- Non-corrosive, rim-friendly
- Tyre life
- Up to +20%
- Lasts
- Full life of the tyre
How to apply
SEALS PUNCTURES UP TO 12MM
COMPATIBLE WITH TUBELESS & INNER TUBE TYRES
Stays liquid for the life of the tyre
Off-Road
About this formula
Keep your off-road vehicles moving with OKO Off-Road Tyre Sealant, the heavy-duty puncture prevention trusted by farmers, contractors, and fleet operators worldwide. Specially engineered for extreme conditions, this industrial-strength sealant instantly seals tread punctures up to 12mm, preventing air loss and downtime while extending tyre life.
Suitable for both tubeless and inner tube tyres, it’s the perfect solution for tractors, harvesters, loaders, forklifts, and other slow-moving vehicles across agriculture, construction, mining, and industrial sectors.
The long-lasting water-based formula remains effective for the entire life of the tyre, sealing multiple punctures as they occur. Unlike traditional fixes, OKO doesn’t dry out, separate, or corrode rims. It’s completely non-hazardous, non-corrosive, and rim-friendly, giving you maximum protection without risk to your equipment.
With OKO Tyre Sealant, you reduce costly downtime, improve tyre performance, and add up to 20% extra tyre life.

The cap is the tool
This size comes with the OKO Cap - applicator, valve-core tool and closure in one piece. No injector to buy, nothing to lose.
- Rotate the cap 90 degrees to unlock it
- Grip and pull up - the straw releases from the bottle
- Remove the valve core with the built-in tool. Schrader and Presta both fit
- Fit the straw to the valve and squeeze in the dose
- Reinstall the valve core, reinflate and go
Questions
CAN I PUMP MY TYRE UP WITH THE SEALANT ALREADY IN IT?
Yes - but if the tyre is fully inflated then you must deflate it by removing the valve core, then immediately apply OKO from the bottle tube or OKO injector, before screwing the valve core back in place. If you use the 25 Litre Drum, the Drum Application Pump delivers OKO against air pressure of up to 60 psi/ 4.1 bar. This avoids having to jack up the wheel and deflate the tyre.
IS OKO COMPATIBLE WITH TPMS VEHICLES?
OKO Off Road is not designed for cars. Where TPMS is fitted to off road vehicles, this sealant is not compatible with valve-based systems. If a wheel rim-based TPMS sensor is used, then OKO Off Road can normally be used.
DOES OKO WORK WITH MULTIPLE PUNCTURES?
Yes, it will seal multiple punctures within the tread area of the tyre.
HOW LONG CAN I DRIVE WITH A PUNCTURED TYRE?
Within the limits of the tyre's thickness and the size of the puncture, OKO seals a puncture permanently.
HOW LONG DOES IT LAST IN MY TYRE?
OKO seals the tread area of the tyre, preventing air loss through the porous rubber. Inside the mostly sealed environment, the product remains liquid during the (extended) tyre life.
IS OKO SAFE FOR ME AND MY ENVIRONMENT?
All OKO products are classified 'Non-Hazardous'. They can be carried by any means of transport. Do not drink the OKO liquid.
HOW FAST DOES IT WORK AFTER APPLYING?
As soon as the tyre revolves, OKO is forced by the centrifugal force to cover the whole tread, and will work whenever the vehicle is moving.
HOW DO I USE IT?
Always apply OKO to new or fresh tyres. Use a valve core remover (included in our bottle cap and our injector) - then OKO can be applied through the stem of the valve.
Guides for this product
Can you use tyre sealant in tyres with inner tubes?OKO Off-Road works in inner tubes as well as tubeless tyres; the road formulas are tubeless only. Which formula suits tubes, and when to go tubeless.Read the guide
Does tyre sealant freeze? Using it in winterEvery OKO formula has its own freezing point, from -8 °C for Off-Road to -30 °C for Truck & Bus. Here is how to choose and store sealant for cold-weather...Read the guide
Preventive tyre sealant vs puncture repair: what's the difference?How preventive sealant differs from plugs, aerosols and vulcanised repairs, what the strength tests show, and where sealant reaches its limits.Read the guide