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EricCR

Superficial cracks in intake boot

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Hi!

 

So I've been busy doing lots of minor stuff to my new-to-me 2003 pathy and yesterday while checking the spark plugs I noticed that the intake boot/duct has some superficial cracks, mostly where it connects to the throttle body and also around the resonator box. I took it off and checked the cracks with a flashlight and I'm pretty sure they don't go through yet.

 

- I come from the 90's BMW world so brittle plastics/rubber to me mean doom. Should I consider that Nissan used better materials and the duct will last a long time in that state?

- I found a thread from 2017 and it was already difficult to source that part for under $200. It looks like it's only sold along with the resonator, clamps, etc. Do you know if someone still sells just the duct?

 

 

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Well, I'm an idiot and I just found 2 different parts on Amazon (weirdly they don't show up if I search directly in Amazon, only if I go through Google first). Anyone knows the difference between 16576-5W900 and 16576-4W00A? They look identical to me. 

 

https://www.amazon.com/Well-16576-5W90A-16576-5W900-Pathfinder-Production/dp/B07M6S9B9S/

 

https://www.amazon.com/Well-Intake-Resonator-Infiniti-Pathfinder/dp/B07BFJHKKG/

Edited by EricCR

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So, I *think* 16576-5W900 (same as 16576-5W90A) is the part I need. The difference between it and 16576-4W00A is that 4W00A has an extra port with a metal plug right next to the resonator opening, while in 5W900 it is sealed.

 

This is just for reference in case someone finds this thread in the future.

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In my experience once the cracks start to show, they go fast. If you really want to cheap out, of course you could probably duct tape them, and as long as it sealed good, you'd never know it. When I needed mine it was hard to find, and I'm really happy I went with the K&N CAI (that isn't really).

 

http://www.nissanpathfinders.net/forum/topic/43758-has-anyone-tried-one-of-the-manufactured-cold-air-intakes/?tab=comments#comment-798577

 

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Thanks. Yeah, I figured there wasn't much life in it with these cracks:

 

2020-09-11-14-53-16-525.jpg

 

I'm going to order the duct from Amazon. Especially considering that the part is already scarce.

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Check the inside for debris before installing it, my Amazon one was full of tiny chunks of rubber and I had to scrub it out. Seems like good quality otherwise though.

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Replaced mine about six months ago.Surprised how tough it was to get on,a little heat from a blow dryer and it slid right on.

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Thanks, guys. I'm going to order 16576-5W900 and see how it goes. I'll report back if that's the duct without the extra port (probably only needed for an extra sensor in the QX4?)

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