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The 2003-2007 Nissan Murano (Z50, 3.5L VQ35DE) uses an electronically controlled active engine mount. This mount has an integrated electrical connector, sometimes referred to as a 'sensor wire,' that connects to the vehicle's engine management system. The active mount contains fluid chambers and an electrohydraulic actuator/solenoid. The ECM controls the mount to change damping characteristics based on conditions such as idle, acceleration, and deceleration, helping cancel engine vibration. Common failure symptoms include fluid leakage, broken or corroded connector wiring, loss of damping, excessive engine movement, and noticeable vibration or a clunking sound under load. When replacing the mount, it is important to use a part specifically designed for the active-mount system and to inspect the wiring harness for damage. For 2026 aftermarket replacement engine mounts, quality suppliers typically certify to ISO 9001 and may test to SAE J2192 or similar OES-equivalent standards, ensuring proper fluid sealing, component durability, and electrical connector compatibility. Always verify that the replacement mount is intended for a 2003-2007 Nissan Murano and includes the correct active-mount electrical connector.