Thieves stole ride-on lawn mowers and generators worth $10,000 from a Hallam warehouse.
Police said the incident took place in Dansu Court in the early hours of Monday 8 May when the Briggs and Stratton equipment was stolen.
CCTV footage caught a vehicle and trailer in the area at the time.
Call Detective Senior Constable Jacobi at Casey CIU on 9705 3114 or Crime Stoppers on 1800 333 000 with any information.