Are there any sources for the oval rubber frame plugs? There are five located on each outside section of the frame. I prefer aftermarket ones, if possible.
Thanks

 

Other than Toyota? No. There's some on the inside of the frame too. And they aren't rubber or oval. They're polyethylene and rectangular(a.k.a. a rounded rectangle), with the part number on the other side(that you can't see when installed). 90950-01395

 

Those plugs are good for keeping water inside the frame but not so much at keeping it out.

 

This is true. They do keep more solid debris out pretty effectively though(mud, small stones, etc.).

 

I am most concerned about the plug holes outside of the frame near the wheels. I clean out the frame with compressed air, then spray inside with a combination of hydraulic oil/bar and chain oil. Then install the plugs. An annual inspection to check on mouse nests etc. is done, then another application of oil.

 

They're painted(powder coated?) inside and out after welding. Not that a little more protection is a bad thing. Just that it won't do you any more good than wiping down the outside with oil.