Farmers are being warned of a rise in theft of tractor GPS kit.

Rural insurer NFU Mutual has joined forces with police and agricultural machinery manufacturers to tackle the surge in thefts of these expensive guidance systems.

Many of the stolen systems are John Deere StarFire receivers and cab display units – but other systems are increasingly being stolen.

Thefts have spread from East Anglia, where they first became commonplace, and police and insurers are now dealing with thefts all across the UK.

In recent weeks, NaVCIS, the police agricultural vehicle theft co-ordination organisation funded by NFU Mutual, is being alerted to multiple GPS thefts from farms and machinery dealers almost every day.

To help stamp out the crime wave, farmers are being urged to rigorously check that any GPS kit offered for sale outside dealer networks has not been stolen.

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Bob Henderson, NFU Mutual national technical engineering manager, said: “Having tractor GPS kit stolen during harvest is hugely disruptive.

"Not only do replacement units – which can cost £8,000 and more – have to be sourced, fitted and programmed, but modern farms can’t work effectively during the vital harvesting period without them.

To help the checking process, John Deere has a system enabling farmers to call their local dealership to check the serial number of its popular StarFire GPS system.

The company’s database includes a marker for stolen equipment – but stresses that not all John Deere thefts are reported to it, and that the system cannot provide proof that equipment offered for sale online is legitimate.

If you are unfortunate to have John Deere stolen, the theft can be reported to local John Deere dealers so it can be logged in the system.

To make it more difficult for criminals to sell-on stolen StarFire GPS systems, John Deere included a PIN security feature in its StarFire 6000 series, launched in February 2019.

Superintendent Andy Huddleston, national police lead for agricultural machinery and vehicle thefts, said: “Making careful checks on the provenance of any GPS kit offered for sale outside the dealer network can stop criminals making money from these crimes and halt the surge.

“The service introduced by John Deere dealers makes these checks easier by enabling farmers to quickly check if a StarFire serial number is on their database of stolen systems.”

He also urged farmers to be very wary of buying GPS kits which have had serial number stickers removed.

NFU Mutual GPS security checklist:

• Activate PIN security on GPS kit with your own unique number

• Keep tractors and combines with GPS fitted stored out of sight when possible

• Check serial numbers of second-hand kit offered for sale

• Remove GPS kit from tractors and other machinery and store it securely when not in use