This is an aluminum deep impeller model for 1275 engines that require a long impeller. We also sell the short impeller model for 948 engines. If you are going to use this long impeller model to move more water, make sure the impeller will clear the cylinder casting/engine block for the number one cylinder. Comes with gasket.
Installation tip: make sure the dowel pin fits properly in your block casting before bolting the pump into the block. We have had pins that need to be ground slightly in order to allow the pump to fit flush to the block. Any issues with this depth will cause leaks around the pump face.