The Oliver 550 is a utility tractor produced by Oliver, an Iowa-based company in the USA. It comes with an Oliver 2.5L 4-cylinder gasoline and Oliver 2.5L| PlantNative.org
Mahindra 4550 is a 4500 series utility tractor. It comes with a Mahindra 2.7L 4-cylinder diesel engine. For its size, it's a monster of a tractor with a lot| PlantNative.org
John Deere 2440 is a 2040 Series utility tractor that comes with a John Deere 3.6L 4-cylinder diesel engine. The hood and dash on later models were completely| PlantNative.org