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Old Dec 13, 2006 | 11:38 AM
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cdnfireman's Avatar
cdnfireman
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Question 03 injectors

I'm thinking of buying a couple of spare injectors and was wondering if the latest injectors will work on an 03 (May 03 build date). Most listings say the newer injectors are for 04 and up..... is this true, or will the latest injectors work on my 03??
 
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Old Dec 13, 2006 | 05:19 PM
  #2  
SpartanDieselTech's Avatar
SpartanDieselTech
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From: Hendersonville, NC
Originally Posted by cdnfireman
I'm thinking of buying a couple of spare injectors and was wondering if the latest injectors will work on an 03 (May 03 build date). Most listings say the newer injectors are for 04 and up..... is this true, or will the latest injectors work on my 03??
They will in a pinch, but the deck height of the injector (the height of the surface where the ball joint from the high pressure rail engages) is not the same. It will work but doing so is more prone to high pressure leaks.

Now, if you change all of the injectors across that bank of the engine (or the whole engine) to the 4C3Z part number rather than the 3C3Z, there is no issue.

They work identically, the difference is just some minor geometry changes.
If I was sitting dead on the side of the road from a toasted injector, I wouldn't hesitate to cross-breed them to get the truck going agian.
 
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