Vehicle Identification Number
Number is on Vehicle Identification Plate which is located on rear face of driver door on most models. On some "A" models it is located on top inside surface of left wheelhouse opening. Its locations on motor home bodies must be supplied by the body builder.
118 - 1780000
First & Second Digits - Model Code.
Third Digit - Number of Cylinders.
Remaining Digits - Sequence Built Number.