There are two types of connector, the previous solenoid was supplied with a 2 pin connector, whereas this superseded number is supplied with a 3 pin connector. If you are fitting to a 2 pin connector vehicle then please reuse the old connector. 

This Fuel Pump is the left hand of the two pumps (when viewed as if sitting in the car). 

When replacing the fuel pump it is essential to clean the fuel tank & flush the system as part of the procedure.