MY SON HAS A 2003 SUPERDUTY WITH THE SMALL POWER MIRRORS WE WUD LIKE TO CHANGE THEM FOR THE BIG TOW MIRRORS.MY QUESTION IS WILL THE MIRRORS WITH THE HEAT AND TURN SIGNAL WORK ON THIS TRUCK WITHOUT EXTRA WIRING OR WILL WE JUST HAVE TO STICK WITH JUST THE POWER ONES? THANKS

 

They will work, but he will need to do some wiring.

There are tow mirrors without the signal and heat though. Those will go right in without any extra wiring.
Be aware, there are two different connectors for these mirrors. A round and a rectangular. Your son's truck has the rectangular. Make sure the new mirrors also have that oh he will have to do wiring.

 

Trey do you think they absolutely wont be plug and play? I thought i read that if you get a later model 03 when the 6.0 diesel was already out, that the lights and heat might work? because the lighted/heated mirrors came out with the 6.0? Im probably completely wrong because ive read so much on these mirror threads ha

 

It might be right. I cannot remember. That sounds like it could be right.

So if you have a 6.0, there is a good chance it will be plug and play.

 

Either way, they will bolt up perfectly. Maybe you will get lucky, if not, just some simple wiring! Good luck!

In the beginning of THIS writeup, it will tell you how to remove the door panels. Same idea for the passenger side. You will need to remove them to access the connector for the mirrors, which will be behind the speaker. When you open your door, pull the black trim piece straight back and you will see two bolts there, and then pull the top and bottom rubber plugs out and you will see the last two bolts for the mirror.

 

his truck is a 5.4 i have not looked at the build date but ill check it out.thanks for the info on the plugs we were pretty sure they were rectangular.i guess we can get the test light out and see if there is a wire thats hot when the turn signals on

 

If the wiring is not there here is a link for the write-up to add the wiring.

New Mirror installation

 

acf6 you were right they were plug and play just pluged em in and everything work power,light,turn,heat thanks for the help and info everybody!!!

 

awesome! glad they worked out like that!

 

That's the beauty of this site! Ask for a little help and the guys are usually pretty responsive.

Joe