should be all seperate part ids and such. whats the main issue? as in, is the mod not showing up in game or the models are the same or something

i cant seem to get any of the fix to work do i need to delete the old mod?

Interactive Parts, it's the engine that looks like the standard one, albeit frameless and 4 blocks long instead of 2.

I found the small round piston, which mod is that engine part from?

OK, after looking through i have found a couple of parts that have missing textures that weren't in this mod, the Big Block Engine x4 and the Small Round Piston. I'll keep my eye out for any more parts like these.

:)

After 4 years, i can finally use these parts again.
Thank you, DaSmashy.