I'm ordering a parallel flow condenser and related parts, but I think I need a compressor as well. At some point the car had a R12 substitute put in, (R415? don't quote me on that..), and there's dye all over the clutch and around the front shaft seal. Oh, and that substitute? Entirely leaked out.

So my question is, what's the best replacement compressor if I'm using R134a in this new system?

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'82 300SD 351k