🔧 ACDelco Professional 15-10673 Engine Coolant Water Outlet: Optimal Cooling Performance and Durability Review

Excellent product. As part of a major overhaul, he replaced all major cooling system components. This Delco AC "neck" gave me the confidence I wanted about the old OEM part, which was beginning to rust (and leak coolant), and I was adamant that the new neck had no leaks.

The one I received looks exactly like the picture. Beautiful, heavy and durable, with a thick layer of black paint. Good strong weld on the inside along the entire length of the diffuser. The gasket is already included in the kit, but if you are unfamiliar with this you should order the stant gasket 25138 in addition to this coolant outlet. The stant pad is pre-applied with upholstery adhesive and protected with peel-and-stick paper. If you've ever experienced shim slip during installation, you

This housing differs from the factory sale and the picture. Sheet metal factory with front tongue. This ACDelco case has no front protrusion and is 3/8" thick at the screw holes and is also made of die-cast aluminum. The factory case is tilted towards the heatsink and this is how I installed the ACdelco case. I had to use 1 1/4 inch. 5/16 screws instead of the factory 1" 5/16 screws as Delco is 1/4" thicker than the factory 1/8" thin sheet metal case. The pre-sold case looked exactly like the…