GM Service Manual Online
For 1990-2009 cars only

Engine ID and VIN Derivative Location for Chevrolet Chevy P12 Chassis 1999


Object Number: 181924  Size: SH

Located on the VIN plate, the VIN provides detailed engine identification and code information by liter and by the engine code letter.

Engine ID


Object Number: 174106  Size: SH
(1)Source Code
(2)Month of Build
(3)Date of Build
(4)Broadcast Code

The engine unit number or date code is either laser etched or stamped into the engine block.

All engines are stamped with an eight digit engine identification number.