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Re: Retrofitting 1989 V5 Compressor--How Do I Interpret 'Date Code'?
Posted to HVAC Forum on 4/24/2003

Many GM parts are Julian-dated, meaning, for example, that 3219 means the part was built on the 321st day of 1989.

I don't have any more info than that, but I'll try to dig something up for you between now and Monday... Login to read more.