# Injector Insulator Part number

**URL:** <https://forums.speedlife.net/t/injector-insulator-part-number/114509>\
**Category:** SON240sx Automotive\
**Created:** [April 8, 2008, 1:34pm UTC](https://forums.speedlife.net/t/injector-insulator-part-number/114509 "2008-04-08T13:34:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Souljourner](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@Souljourner](https://forums.speedlife.net/u/Souljourner)\
**Post date:** [April 8, 2008, 1:34pm UTC](https://forums.speedlife.net/t/injector-insulator-part-number/114509/1 "2008-04-08T13:34:09Z")

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Hey guys,

I searched on the FAQ and can’t find it. The one I need is the insulator that is right under the fuel rail. It is a hard piece of what appears to be plastic / graphite. It sits between the fuel rail and the rubber gasket in the fuel injector hole.

After ordering pretty much all the parts, I am stomped.

Any have expereince with this? Must be pretty common as it falls off as soon as you pull the fuel rail.

Any help at all is much appreciated!!!

The “insulator” listed below i already ordered. the part number below is for the insulator on top of the injector, holding it down. I need the one that separates the injector from the intake manifold.

Thanks!!!

From FAQ:

Fuel system:  
Fuel injector Jan 1991 - Dec 1998 16600-50F00, 16600-50F02, 16600-50F10, 16600-50F12  
Small injector O-ring Jan 1991 - Dec 1998 16618-53J00  
Large injector O-ring Jan 1991 - Dec 1998 16618-10V05  
Injector insulator Jan 1991 - Dec 1998 16635-53J00  
Injector rubber back cap Jan 1991 - Dec 1998 16619-53J00  
Fuel rail Jan 1991 - Dec 1998 17520-52F00  
Fuel pressure regulator Jan 1991 - Dec 1998 22670-52F00  
Fuel pump Jan 1991 - May 1991 17042-35F00  
Fuel pump May 1991 - Dec 1998 17042-73L02

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**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\
**Post date:** [April 8, 2008, 1:41pm UTC](https://forums.speedlife.net/t/injector-insulator-part-number/114509/2 "2008-04-08T13:41:32Z")

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They are the same as DOHC Ka’s… You could go take one @ a junk yard or even find someone with an old/spare rail they dont need. I previously had one but gave it away other wise I would have gave you all 4 for free.

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**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\
**Post date:** [April 8, 2008, 1:46pm UTC](https://forums.speedlife.net/t/injector-insulator-part-number/114509/3 "2008-04-08T13:46:23Z")

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Anyhow… Part # I got from Fast was 16635-53J00 “Injector Insulator” but its a Japanese # thou they should be able to cross reference it here into a north american #

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**Author:** ![Souljourner](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@Souljourner](https://forums.speedlife.net/u/Souljourner)\
**Post date:** [April 9, 2008, 6:24am UTC](https://forums.speedlife.net/t/injector-insulator-part-number/114509/4 "2008-04-09T06:24:38Z")

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thanks!! i ordered it… looking forward to putting my car back together finally… it’s been down for more than a week.