The TXV area where it comes out of the box did not quite fit as well as the original. I put a bit of sealer around the big foam gasket.

Consequently, my TXV ended up sitting slightly forward compared to the original and I had to loosen the clamp that holds the low side hose in the engine compartment so I could move it forward a bit.

The original fit PERFECTLY, but the ACM was acceptable. Of course, the original leaked and the ACM doesn't. They may not all be exactly the same.

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2012 E350
2006 Callaway SC560