Investigations are ongoing into an apparent crime spree along the Laois-Offaly border in the early hours of Sunday 16 May.
It is understood that the thefts of a Jeep in Borris in Ossory, a trailer in Clonaslee and a John Deere Gator in Cadamstown may be linked to a single individual or crime group.
A quantity of diesel is also missing from a separate farm in Clonaslee.
In a seemingly connected incident, another farmer from the Coolagh area of Clonaslee took to social media to show a locked field gate which had been "burst in by a vehicle".
The vehicle "drove around in circles before leaving".
Croghan trailer theft
Meanwhile, gardaí are investigating the reported theft of a Murphy cattle trailer, along with an electricity generator, from a shed in Croghan, Tullamore.
The incident is thought to have occurred late Saturday night or early Sunday morning.
The trailer has appeared on multiple CCTV cameras being towed by a dark-coloured Ssyangyong SUV.
No arrests have been made in relation to any of the thefts.
Investigations are ongoing and An Garda Síochána has appealed for information.