Rear Diff

Does anybody have a part number for the rear breather plug on the rear differential for a 2017 Tundra? Every Toyota parts place online does not show it. I thought I had the correct part number but every site says it does not fit my truck. Those online toyota parts are extremely frustrating

 

https://www.tundras.com/threads/diy-rear-differential-breather-mod.5253/

 

I believe it’s 90930-A3001. But would be better to put on the ARB Diff breather kit.

 

What is the ARB Diff breather kit? Is that what reywcms posted?

 

Definitely a good time to upgrade IMO.

https://www.tundras.com/threads/arb-diff-breather-install-guide.19816/

The ARB kit relocates the breather to a higher place so you don’t suck water into the diff if it gets submerged. I located mine behind the rear tail light similar to the install guide linked above.

 

Like others have said, relocate it while you have the opportunity. I bought a kit from Toytec, and relocated mine in the gas door. I'm anal about it and just check to see if it's free every time I fill up.

 

You don't really need to spend $80+ on that kit although it looks nice.

Buy a

$7 Toyota Genuine Parts - Union (90404-51319)

union off Amazon for about $8 then get about 10 ft of 5/8" hose from an auto parts store. Throw in some zip ties and you're set.

 

I can independently confirm that this ^^^ way works juuuuuuuuuuuust fine.

Use your savings to buy the kid (or grandkid) a nice pair of Hey Dudes. Spring and then summer is just around the corner.

 

How I did it as well after taking a big ol gulp while launching a boat. No problems since and my truck has gone swimming waist deep a couple times.

 

Nice. Where do you have it routed to?

 

Zip tied to the top mount for the tailgate assist behind the drivers side tail light.

 

Came across this lesser expensive option. https://www.ebay.com/itm/296721615886

 

Looks like plastic for the hose material. Easy to puncture and/or kink then break open.

 

Not to date myself, but what is a hey dude?