I am looking to buy a new OEM 2.5 shortblock.    Single overhead cam 2.5 liter non turbo, non egr motor. I am not sure on the original VIN number.  Anyone know the difference between subaru part numbers 10103AB190 AND 10103AB390 ?  They both seem to fit multiple cars in the 1999-2003 range but the 390 version is about $300 dollars cheaper.  The engine is in a VW vanagon which is why I dont know for sure what it is. Thanks for any help.

 

I went and looked at the diagrams, and frankly, I don't see any real differences.  It is possible that the 390 number is simply a superceded number for the identical item.  Subaru's well known for doing this.  Or maybe different rings or bearings were used.  Although, it is possible that one is the EGR version and the other is the non-EGR version.

 

If you want new, go for the newer part # if you can verify it is non-EGR.

 

You do know that Subaru has a reman shortblock program too, right?  About $1000 less expensive.  Same warranty.

 

Emlly

Thank you for checking that out.  They do seem to  both be available.  I've read so much that most 2.5 non turbo short blocks are inter-changeable . Just want to be sure. 

I'll do some comparisons with re-built options. I just like the idea of brand new plus no core charge so I can keep my old one and re-build it as a spare.

subaru parts website shows this rough distinction:

190 is a 2000-2002 block

390 is a 2002-2006 block

 

this isn't very "block" specific but maybe it's simply EJ251 and EJ253 differences:

https://en.wikipedia.org/wiki/Subaru_EJ_engine