"TD04" represents only part of the turbo's full designation; the turbo's full name may be TD04-13G or TD04-15T. The first series of numbers and letters -- TD04 -- designate the turbine housing/wheel design and diameter, The second series -- 13G or 15T -- represents the compressor housing/wheel design and diameter.

What's the difference between TD04 and TD05?

The TD04-13G is the turbocharger used on automatic 1st generation (1G) DSMs. Compared to the TD05H-14B from the manual cars, the 13G has a smaller compressor and turbine housings, as well as smaller turbine and compressor wheels. 13G's spool slightly faster but have much less top-end than a 14B.

Are all TD04 Turbos the same?

second, they are all different turbos. what you are referring to (TD04, TD05, TE04) are the actual housings the compressor wheel resides in.