This is the gasket that sits between the Throttle Body and Hydraulic Body (the assembly in which the injector is fitted) in Rovers' SPi or TBi injection/fueling system. If you ever have to change the stepper motor on a Rover Single Point injection system you will need to split the Hydraulic Body from the Throttle Body to get access to the screws that you have to remove in order to get the stepper motor out.
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