The original tyre sealant

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.

  • Trusted in agriculture and construction for 48 years
  • Permanently seals multiple punctures up to 12mm
  • Designed for harsh off-road environments
  • Seals tread area punctures immediately
  • Lasts the life of the tube/tyre
Size
£19.99incl. VAT

How much do you need?

Any format works — e.g. 165/70R16 · 180/55 ZR17 · 30.00/65 R33 · 4-9 · 13x5.00-6

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Free UK delivery over £30 — 2–3 business days.

Outside the UK, OKO sells through local distributors.

Find a distributor

In the UK? You can buy direct from OKO —

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

1250ml bottle: Features a specially designed cap for clean, controlled application directly from the 1250ml bottle. Ideal for quick use in workshops or field repairs.

5L can: Apply quickly and mess-free using the 150ml OKO Tyre Sealant Injector (sold separately), ensuring precise and accurate dosage every time.

25L drum: Apply quickly and mess-free using the OKO Metallic Drum Application Pump (sold separately), ensuring efficient and accurate dosage every time.

SEALS PUNCTURES UP TO 12MM

Designed for extreme off-road conditions, this heavy-duty tyre sealant stops air loss as you drive, sealing tread punctures up to 12mm. Trusted by farmers, contractors, and fleet operators worldwide.

COMPATIBLE WITH TUBELESS & INNER TUBE TYRES

Perfect for tractors, harvesters, loaders, forklifts, and other slow-moving off-road vehicles in agriculture, mining, and construction.

Stays liquid for the life of the tyre

Inside the mostly sealed environment, the product remains liquid during the (extended) tyre life.

OKO Original Off-Road — Sealants
OKO Original

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.

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.