That is the exact same one (numbers & all) I got from a dealer & matches the one I replaced it with on my ‘05. Maybe you have an aftermarket (non OEM) pan on there.

How about a look at the other one?

 

It's possible that your pan was changed at some point.
I installed a Crown aftermarket oil pan on my 05. The original drain plug is too small for the new pan.

 

Wouldn't the rubber seal prevent leakage past the threads if were seating flat on the pan?

Are there burrs, gouges or pits in the metal around the drain opening that might prevent the rubber from making a good seal?

Check to see if it is seating on the pan properly... maybe it is the pan and not the drain plug.

 

The rubber seal is what I like about the original plug. Its definitely the plug. The plug that is on there was actually replaced last year. I took it in for NYS inspection to valvoline and figured I would have them do the oil while I had it there. They "lost" the old plug. Never really payed attention to what the old plug looked like though.

When you buy a new oil pan, you get a new oil plug.

Figured the threads on the aftermarket would be made to fit the original plug. To me that would only make sense.

It's possible that your pan was changed at some point.
I installed a Crown aftermarket oil pan on my 05. The original drain plug is too small for the new pan.

Sounds like this is the scenario that is most likely the case. Same issue.

 

Take it to Advance auto or Autozone and have them match it up for you.

 

The other possibility is the pan was drilled out & re-tapped for a larger threaded plug. Maybe the PO couldn’t find an OEM plug or somehow damaged the original threads.

If so you should be able to go to a local auto parts store & match it that way.

 

When you buy a new oil pan, you get a new oil plug.

 

My drain plug is leaking. I purchased a new plug online, did not fit.

When I have a drain plug that leaks, I install a new seal or gasket.

When you buy a new oil pan, you get a new oil plug.

But there is no guarantee that the new plug matches the original.

 

A) Take to ACE hardware and find the right thread size and pitch...unless you have a pitch gauge. Betting no.
B) Get a replacement that way. I’d go aluminum. You’ll strip a bolt before your strip the oil pan threads. Win win.

 

My local Lowe's in the nut and bolt area has a board of nuts and screws to test your current bolt as to size and pitch. Very handy.

 

The "plug" is a steel bolt... it can't leak.... change the seal on the plug
Assuming your new plug HAS a seal.... if it doesn't, add one...

 

Tap and die sets have thread pitch gauges. Best thing ever.

 

As stated match it up at a good hardware store get all the info regarding the threads used. Then Google magnetic oil pan drain plugs, Gold Plug is a good one. Call them up with thread pitch and size and they'll get the right plug to you. And you'll have the added benefit of a good magnetic drain plug.

Or take the plug to a good parts store with a patient parts man that is willing to try and match what you have.

 

This thread went marianas trench deep

 

I just checked my 2004 parts catalog and the part number listed is 6035 417.