Standard Ignition Door Remote Mirror Switch P/N:MRS49
Standard Motor Products
Get your power mirrors adjusting on command again with the Standard Ignition switch MRS4, a door remote mirror switch for the 2004 Ford F-150. It is a direct-fit replacement for the original electrically operated switch. It is designed to bring back power mirror control when the factory unit has been damaged or has failed. See the "Vehicles it fits" section for complete application details.
The remote mirror switch sends power to the mirror motors so you can adjust the mirror glass from inside the cab. Signs this switch may need replacing include a mirror that won't move, moves in only some directions, or responds only intermittently. A blown fuse, a wiring fault or a failed mirror motor can cause similar symptoms, so diagnose the cause before you replace the switch.
Interchange: RMS4 · SW6521 · PA1254 · 4L3Z17B676A · 4L3Z17B676AA
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
What vehicle does the Standard Ignition MRS4 fit?
It is listed for the 2004 Ford F-150, and full application details are in the "Vehicles it fits" section.
What does a remote mirror switch do?
It is the electrically operated control that sends power to the mirror motors, so you can adjust the power mirrors from inside the vehicle.
How can I tell if my power mirror switch is bad?
A mirror that won't move, moves in only some directions, or works intermittently can be a sign. A fuse, wiring or mirror motor fault can cause the same signs, so diagnose the cause first.
What part numbers does the MRS4 replace?
It cross-references RMS4, SW6521, PA1254, 4L3Z17B676A and 4L3Z17B676AA.
Is this switch built to OE specifications?
Yes. Standard Ignition states its switches are made to OE spec for proper fit, form and function, and this unit uses copper alloy conductors for low resistive losses.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.