NRHX2009
New member
Yes that is true. There is a 13 bladed turbine wheel that has the same dimensions as the 03/Powermax 10 bladed turbines. It originated in the Duramax LLY turbos and can actually only be used in the 03/Powermax turbine housings. The 04 13 bladed turbines won't actually interchange with the 03 10 bladed turbines due to the vane height being shorter on the 04.
I have had them come out of 6.0L turbos. I'll pay a little more attention to the PN from the turbo and see what it comes up as.
As far as turbine housings from my above post, I meant 03-early 04 that use the 10 blade turbine wheel. The 13 blade 66mm will fit those only.