Oil Pump Pressure Regulating Valve Assembly, fits 90~95 ZR-1 LT5 Oil Pump.

NOTE: GM did not service individual parts for the LT5 Oil Pump, but did show all the individual components in the parts manual, without Part Numbers.  This Valve was assembled at Mercury Marine during LT5 production.  The PN we used was assigned by Jerrys Gaskets using the same group numbers as the Oil Pump.  It is not a number used by GM