Aftermarket options for AT check plug (V6, 2015)

Got around to attempting AT drain & fill yesterday and didn't try to remove the check plug before draining the fluid. The 5mm hex bolt was pretty rusty and was basically stripped before I even tried to loosen.

I saw Tacomaholic (2nd gen youtuber who does tutorials if you're unfamiliar) used a 14mm transmission drain bolt when his hex bolt got stripped and I was planning to do this as well. There's only one local dealer and they don't have any in stock (

$7 90341-10011 Plug, Straight Screw

90341-10011). They also don't have 5mm hex replacements.

Do you think I'm safe to buy a 14mm oil drain plug at Autozone and use it in place of the hex? The one that's in stock locally is Needa Parts Engine Oil Drain Plug 653056 and looks as or more shallow than the OEM transmission drain plug.

 

Junkyards?

 

In the FL Keys so anything like that is picked through or doesn't exist unfortunately

 

As long as the bolt is a flange head style, so it can crush the washer evenly, it should be fine.
You could use a regular bolt, and flat washer in a pinch, and probably be ok.
But it's another point for a leak. (That probably won't ever happen)

 

Did you take your old plug to make sure it is the same size as the Needa 653056, which is a M12 x 1.25 bolt? Both tranny plugs on my 07 are M10 x 1.5. But yes, hex bolt is ok. I replaced mine at the first flush about 12 years ago. The M10 size is common on motorcycles, so you are sure to find it at a motorcycle store.

On Autozone website, I don't see a Needa M10 bolt shorter than 25mm. My oem bolt is 8mm long and the flange head is 17mm wide. I wouldn't get a bolt longer than about 10mm long. You can grind it down if you don't find one about that length.