3.5 hp Briggs fuel tank

[frenchfriesrock]

mower part number is 90702-3080-01 89022804 , can't find any fuel/gas tank replacements online, all vendors I see show part unavailable.

is it possible to get these anymore?

 

[Scrubcadet10]

Looking at the diagrams, it shows two fuel tanks were used on the model, one for electric start models other for pull rope start.
Looking at the way it mounts, i wonder if you could mount a model 12 tank.... Here's what they look like, compared to yours..

 

[bertsmobile1]

FWIW I can not even find a used one of those tanks so now when they come in leaking I plastic weld them.
About a 60% success rate
I would have considered it a design fault except these tanks are now very old so possibly at or past their design life.

 

[StarTech]

I not surprised that the plastic fuel tank 490622 or 190623 are not available. That engine is 31 yrs old.

 

[Rivets]

There was a design flaw on the half tank and they were recalled and replaced. I have found the full tank Available online #490623. Half tank is mounted differently.