The plastic only failed after the engine was experiencing significant failure caused by a metal part leaking.Plastic parts are the worst 'advancement' of the modern engine.
I have seen plastic cooling parts fail across all makes. It doesn't matter how good the engine is if a $20 plastic pipe fails.
however, we are going back in with a new aluminum oil cooler/oil filter housing. I am leery of Dorman products but this one seems pretty nice.