LEGO Technic John Deere 9620R 4WD Tractor 390 Pieces | Kids aged 8 and up who enjoy tractor toys will love this authentic LEGO Technic John Deere 9620R 4WD Tractor 42136 building set. Designed in collaboration with John Deere, this tractor and trailer toy is packed with realistic features. It comes equipped with huge wheels, articulated steering and a driver’s cab with a seat that turns.