I am trying to find out what digit in the vin number will verify that my engine is an lb7! Can someone please answer thanks

 

Duramax VIN Engine Identification
Identifying Duramax Engine Version Using The VIN Number





The following tables will help you identify which Duramax diesel engine a truck has based on the 8th digit of the vehicle identification number (VIN).

2001 - 2004 VIN Number Engine Identification:


8th Digit of VIN Number Duramax Diesel Engine
1 LB7
2 LLY (the LLY was introduced mid-year in 2004)


2005 VIN Number Engine Identification:


8th Digit of VIN Number Duramax Diesel Engine
2 LLY

*The LLY was the only Duramax engine offered in 2005.


2006 VIN Number Engine Identification:


8th Digit of VIN Number Duramax Diesel Engine
2 LLY 2006 version
D LBZ (the LBZ was introduced late in 2006)

*the 2006 LLY features many differences from the 2005 version. View the 2006 LLY Differences for more information.
2007 VIN Number Engine Identification:


8th Digit of VIN Number Duramax Diesel Engine
D LBZ
6 LMM


2008 - PRESENT VIN Number Engine Identification:

The LMM is currently the only Duramax offered. The 8th digit is a "6"

 

thanks man i was struggling, been trying to help a friend sell a diablosport he got ripped on. thanks again