I am cleaning my throttle body this weekend and replacing the stock metal "D" TB gasket with a nice new TRD "O" shaped gasket.

Just wanted to share this information with you all.

The part #00602-17620-032 no longer works.

The new part # is PTR26-35041
For a grand total of $2.20 at the dealership!

Here is a pic of the new one and old for comparison. It is a really easy mod that everyone should be doing. D

what are the advantages of doing this?

The TRD gasket is B, the stock is A. The throttle body opening and the entrance to the intake plenum are circles.

With the stock gasket, the D shape impedes the flow of air.
On a S/C, you lose 1.5 lbs of boost by not using the TRD gasket. The gains are not going to be huge for a NA engine, but leaving the stock gasket that is blocking the flow of air into your engine certainly cannot be better for perfomance.

For $2.20 and a half hour of time this is a pretty quick and easy mod.

right on.. I just cleaned my TB about a month ago.. I will have to go grab one.. and do it again. Im with you for 2 bucks you cant go wrong

hey Just another thing about your TB. If you live in a warm weather climate you should consider the throttle body bypass.if you don't mind putting it in, in the summer and taking out in the winter you can use it in cold climates. there are company's that make kits for Toyota trucks/SUV. The kit works by disconnecting the coolant lines that run through your TB and connect them to each other. that way the very hot coolant dose not heat up your TB and your TB dose not heat up the incoming air. The coolant runs through your TB to keep it from freezing or from giving your truck a rough idle in the winter. The kits usually cost around 15-20 dollars. check out Gofastperformance.com . claims are 8-10 hp gain. hey like you said every little bit counts! I have an extra one for sale $20 includes shipping.

I have read and debated about this before. Here is Gadgets take.

"Folks, most of you all have this all backwards.

Cold air like sub freezing will not cause ice to form in the throttle body. Cold air like that does not hold moisture so there is nothing to freeze in the throttle body.

It is warm weather that you may have the icing problem. Like warm very humid air. When the air passes through the throttle plate it goes from an area of high pressure to low pressure. This does two things. First there is a dramtic temperature drop and it can be as much as 30-40 degrees. Next what ever moisture is in the air can condense out and the two things combined can cause throttle icing.

So, you are more likely to have throttle icing when it is warm out then when it is cold.

Gadget"

Thanks for the idea though. I appreciate it.

I am in 100% agreement with DavidAlexander. This was a concept they stressed heavily in aircraft school!

I have heard a lot about NA engines. I know you are referring to ones without supercharges (S/C), but what does the N and A stand for?

Hey, if your going to take it apart and clean it, why not put on the better and new gasket. Good idea.

I have never heard about this hot radiator fluid pipe in the throttle body. Funny, considering how many air intake discussions talk about getting COLD air...only to have a heating mechanism in the throttle body??

Interesting idea (sort of off topic); I'd like to hear more about it.

naturally aspirated, means any engine without forced induction

[QUOTE]Originally posted by CSL
[B]I have heard a lot about NA engines. I know you are referring to ones without supercharges (S/C), but what does the N and A stand for?

N/A stands for naturally aspirated.

Guys, all you need to do is dremel out the ORIGINAL gasket, and make it round, sure the gasket is cheap, but id rather have the metal gasket on there anyways, instead of the new paper one. Just a suggestion though.

"Naturally Aspirated"...how sophisticated...

Try as I did, when I thought about it I couldn't get "Not Applicable" out of my brain, lol!

im consitering doing this mod, i i looked all over is there a write up for doing this? i know all it involves is taking the throttle body apart and putting the gasket in, and cleaning the thottle body? how many of you have done this. any pros or cons?? am i going to get any check engine lights. thanks

should be super easy, and if you do the re-assembly right won't have any check engine lights.

i cut mine out, and paper tears over time so you will need to replace it every year or so, when you take your TB off for cleaning... so the 2.30 is a waste, just cut you old metal one

N/A= Naturally Asperated