Yes, the engine vin no. is on the label in the cabinet above the driver. I can't help with the toilet because we did not fill out any warranty card for it. Also can't help with the washing machine because we opted to not get one because we wanted to have more available weight for other things than a washer. Also, I think that most of the warranty issues can be resolved by giving them the delivery date of the coach. Each time I had some warranty issue, I simply provided the delivery date and that was sufficient.
Tom and Margaret
2014 Berkshire 390bh-60