Any diesel Class A motorhome can be a diesel pusher. They are usually easy to spot, with a bus-like front end, some of the largest windshields, and a diesel engine in the back.
Diesel pusher motorhomes have their engines in the back of the vehicle. They will have more torque than their gas-fueled counterparts, so there’s plenty of power to ‘push’ the bus up inclines and tow weightier vehicles behind them.
It usually gets better gas mileage than gasoline engines, and a diesel engine might last twice as long.
The ride in a diesel pusher is more comfortable and smooth, mainly because of the air-ride suspension.