The interface between components will have a machined groove to accept the O-ring. The O-ring is slightly compressed when assembled to provide a liquid-tight seal keeping engine fluids in and air and dirt out.
Door Jamb Switch Genuine ACDelco GM OE/GM Genuine Parts D6074
Brake Master Cyl Reservoir ACDelco GM OE/GM Genuine Parts 84873081
NOS ACDelco GM OE/GM Genuine Parts PT1071 - ABS Harness Connector 15305931 USA
ACDelco GM OE/GM Genuine Parts 1551264 - A/C Evaporator Temperature Sensor
ACDelco GM OE/GM Genuine Parts 85157019 Control Modules - Object Sensor Module
ACDelco GM OE/GM Genuine Parts 25819578 Control Modules - Object Sensor Module
