6651 Mail Truck is a Town themed set released in 1982. It contains 47 pieces to construct a truck, a mail box and one postman minifigure.
The set also contains three letters (printed 1x2 tiles).
- Although there were sets released with printed bricks with the text Post, this and set 6362 Post Office were the first LEGO System sets that involved the postal service.
- The van of set looks like a bigger version of the van featured in sets 6624 Delivery Van and 6377 Delivery Center.