Help identify the injector
 

All, I just recently picked up my new toy! A 2004 duramax with the LB7. It's a crew cab. Love the truck. I bought it knowing it needed injectors......

I also, tonight, picked up 4 brand new injectors from a guy on craigslist for $400!!!! But....I'm not sure where the injectors are from. Here is the question......they are wrapped in brown paper and have red caps on the injector line fitting with blue caps on the nozzle.

They look brand new and he swears they are Bosch OEm remans......I beg to differ! So has anyone ever bought injectors wrapped in brown paper and have a blue nozzle cap????? If so, I would love to hear from you!

Thanks, Dean
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Your going to have to give more than that, most injectors come with nozzles covers and connecting port plugs/caps. Any numbers on them?

The top number ends in 502, which I believe is the most current based on what i have read. I thought the packaging combination might be unqiue enough for people to identify them based on this. I will try to get a pic up.....

pics added in first post