GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Chevy C Pickup - 2WD 🢒 General Information 🢒 General Information 🢒 Engine ID and VIN Derivative Location

4.3L Engine
Object Number: 174107 Size: SH
(1)Engine Identification Number
(2)Alternative Engine Identification Number

6.5L Diesel Engine


Object Number: 181920 Size: SH

5.0L and 5.7L Engines


Object Number: 181924 Size: SH

7.4L Engine

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.