Engine Numbers

Introduction
The EX500's engine has a serial number stamped on the right side, near where the clutch cable connects. This number is not like a VIN, where certain digits correspond to certain years or features. The number is purely a build sequence number. Nothing in your engine's number will tell you anything specific about it, but comparing it to others' numbers can give you an idea of how old the engine is. All engine numbers begin with the sequence EX500AE, followed by a six digit number.

Engine Number Database
These are engine numbers forum members have submitted to help establish which numbers correlate to which years.