There are 6 choices

Choose One

6.0L (VIN U, 8th digit)
- CNG
- gasoline
6.6L turbo diesel (VIN 1, 8th digit)
- California
- Federal
  - opt NF2
  - opt NF4
8.1L (VIN G, 8th digit)

Engine Assembly for 2003 GMC Sierra 2500 HD

Attention!

There are 6 choices for the 2003 GMC Sierra 2500 HD Engine Assembly !!!
Choose Your Option

6.0L (VIN U, 8th digit) CNG
6.0L (VIN U, 8th digit) gasoline
6.6L turbo diesel (VIN 1, 8th digit) California
6.6L turbo diesel (VIN 1, 8th digit) Federal opt NF2
6.6L turbo diesel (VIN 1, 8th digit) Federal opt NF4
8.1L (VIN G, 8th digit)

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