Nissan Altima (L33) 2013-2018 Owners Manual ≻ Technical and consumer information ≻ Vehicle identification ≻ Engine serial number
Nissan Altima (L33) 2013-2018 Owners Manual: Engine serial number
The number is stamped on the engine as shown.

The number is stamped on the engine as shown.

Vehicle identification number (chassis number)
F.M.V.S.S./C.M.V.S.S. certification label