Thieves stole a road sweeper from a building site before stripping it of its engine and other parts.
The vehicle was taken from a building site in Priors Hall Road, Corby, at about 8am on Wednesday, May 27.
It was later found in Stamford Road, Weldon, having been stripped of its extra engine, hydraulic pump and tail-gate lifters.
The theft happened at a busy time in the morning and officers are appealing for anyone who may have seen anything suspicious in the area, or who has information about the stolen parts, to contact them.
Witnesses, or anyone with information, can call Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555111 or use the anonymous online form at www.crimestoppers-uk.org.