This is the proper AC Delco OE replacement pump with the composite impeller. The composite impeller does not have the issues with slip like the cast ones do therefore no need to weld anything. Includes new cover. These pumps do not include any additional seals or gaskets. See below.

This is the gasket for the outlet of the water pump where it connects to the steel pipe that leads back to the oil cooler. Fits LB7 thru LML water pumps.

This is the oring that seals the connection between the water pump and the bypass tube that connects to the thermostat crossover. Fits LB7 thru LML.

This oring seals the water pump to the timing cover/crankcase. They are typically reusable multiple times, but some prefer to replace them. Fits LB7-LML engines.