I have an 05 with the 5.4 and it is covered under the extended warranty for the injectors. It has 110k miles on it and I want to get some replacement injectors ready to replace the ones that are in it when the extended warranty expires. I bought a used set from a member here and the part number on the side of them is 3L3E D5A and they have a bunch of other numbers on them as well but none that fit the Ford numbering system. Does anyone know the part number on the ones that are faulty? I am going to do a home refurbish on the used ones because I can't afford to buy new ones. I want to make sure the used ones I have are not ones included in the batch of crappy ones.

 

Doesn't anybody know?

 

Call a competent dealer and ask them.

 

I found new injectors for $22 at O'reileys, so it wasn't that expensive. The numbers off the factory injectors that I took off of my '05 are
5C3E-DB
9F593
4352F12576

Those numbers were near the tip and the only numbers I can see on the old injectors other than the brand DEKA and the Ford logo. Hope that helps. My truck was subject to the TSB for injectors and I had #4 giving me issues. Dealer will only replace the injector that is bad and not all of them, so I figured that rather than wait till hydrolocking the engine I would just bite the bullet and replace them all.