According to the Garda twitter page, the vehicle and trailer were worth in the region of €30,000.
It is believed that the name was registered as fake to avoid prosecution.
The vehicle was seized after 10:30 on Saturday morning.
'A brush with the law' 4X4 & trailer worth 30K forfeited to State. Registered in false name to avoid prosecution. Using green diesel too pic.twitter.com/6s8neP1nYa— An Garda Síochána (@GardaTraffic) July 29, 2017