The head gasket for the SS5 Ingersoll Rand air compressor is located in between the pump head and the valve plate assembly. This creates a seal between these two parts preventing air and oil from leaking through. 54571617 is an OEM part from Ingersoll-Rand.
Note: When replacing the head gasket, you typically need to replace the a SS5 valve plate gasket as well, since the compression and seal between the valve plate and cylinder is lost.
The old part number for this gasket was 54410667 which now supersedes to this item 54571617. If your manual states to use item # 54410667, then purchasing this head gasket is correct.
Part #: 54429600
Part #: 97333546
Part #: 38436721
Part #: 32170979
Part #: 20100277
Part #: SS5
Part #: SS5L5