Bradford Crown Court heard last week that Butt had been a car dealer in Shipley for many years, trading as Cars R Us, For Motion and latterly SH Car Sales.
The prosecution said that between September 2005 and July 2006 Butt sold nine clocked cars and had six more ready for sale. He received more than £20,000 for the vehicles and made almost £4,000 profit. He had bought the vehicles at auction and had the mileages considerably reduced.
One BMW, sold for £2,800 with 88,000 miles on its odometer, had actually done 294,000 miles. Another customer bought a Renault Scenic for £3,500 with 56,000 miles showing, but it had covered twice that mileage.
In mitigation, Butt's solicitor said the offences were committed for economic reasons to pay bills and look after his children.
Butt was convicted of similar offences in 2001.
Judge Christoper Prince told Butt: "Those who go to garages lose faith in them and those who want to run businesses and provide vehicles are less likely to do so because of the behaviour of people like you."