2021 GMC Sierra 3GTP8DED-M — group EC
20 vehicles sit in group EC of this build. Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
What 3GTP8DED-M means
- 3GT
- the World Manufacturer Identifier GMC registered — assembled in Mexico
- P8DED
- together encode the Sierra line — Pickup, 5.3L 8cyl — as GMC filed it, these five characters are read as one block, not letter by letter
- M
- in position 10 — model year 2021
- 9, 11–17
- vehicle-specific fields: check digit, plant code and production sequence
Vehicles in this group
20 vehicles in this group, in fixed VIN order.
-
3GTP8DED
5MG480497
- 3GTP8DED 9MG427513
-
3GTP8DED
4MG259022
-
3GTP8DED
3MG116191
-
3GTP8DED
2MG114030
-
3GTP8DED
4MG280999
-
3GTP8DED
7MG401279
- 3GTP8DED 5MG375541
-
3GTP8DED
5MG235683
-
3GTP8DED
1MG232165
- 3GTP8DED 9MG231362
-
3GTP8DED
8MG430211
-
3GTP8DED
1MG360017
- 3GTP8DED 9MG229000
- 3GTP8DED 6MG150397
-
3GTP8DED
6MG376780
-
3GTP8DED
2MG413419
- 3GTP8DED XMG231693
- 3GTP8DED 7MG233112
- 3GTP8DED 9MG315925









