Help with engine replacement selection....

[psoff]

I'm located in Michigan. My daughters 2009 Cobalt LS with a 2.2l ecotec has 185k miles and needs the engine replaced. It sounds like it has a rod knock. So I'm looking for a used engine at the local junk yards. I'm seeing online 3 different options for engines and not sure if all 3 would fit or not. they list...

• 2009 Chevrolet Cobalt - 2.2L (VIN H, 8th digit, opt LAP), Federal emissions (opt NT7)
• 2009 Chevrolet Cobalt - 2.2L (VIN H, 8th digit, opt LAP), California emissions, opt NU1
• 2009 Chevrolet Cobalt - 2.2L (VIN H, 8th digit, opt LAP), California emissions, opt NU6

Am I able to use any of these 3 to fit in her cobalt? I dont understand why there is 2 different Cali emissions options or could this be a typo?

Thanks to any of you that can help.

 

[SideShow Bob]

Look at the RPO codes on the vehicle needing the engine and see which codes match.
Then you will know which engine will work.