5.4L fuel injectors and production dates..
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3rd Gear
Joined: Nov 2025
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5.4L fuel injectors and production dates..
I’m a bit confused here. I have a 2003 F250 5.4L, the production date for my truck is 03/27/2003, when I search for fuel injectors, all major parts suppliers in my area Advance, Autozone, Napa, auto parts warehouse even online vendors like parts geek, rock Auto, and even Amazon all list, two different injectors with the production date of either before or after 01/15/2003, with the distinct looking difference in them too. the before’s being short and fat and the Afters being long and skinny. the fat ones is what is in my truck now. I contacted my local Ford dealer. They gave me a part number which crosses to the fat ones. The before’s… what am I not understanding here?
Laughing Gas
Joined: Sep 2013
Posts: 1,113
Likes: 102
From: North Idaho
The 01/15/2003 is probably just a "general" switchover date. Your truck may have come from a different factory or off another production line. Maybe the engine was replaced at some point? Since you KNOW what you have, I wouldn't fret about it too much. In 365,000 miles on my truck, I've had to replace ONE bad injector.
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enduringexplorer
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Mar 6, 2021 10:08 PM
