Does anyone know where to get a new Fuel tank for a 200 series? Need a cheap one or I will be tempted to keep my leaking one. All of the ones I have seen in the junkyards out here appear to be leaky as well.

Where are you located?
I have a '78 242 sitting in my back yard with a '92 tank that I had put in it in '95. It's in very good shape with new pre-pump.
I would not want to ship it, I believe you cant ship one if it's been used anyway.
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'89 245 Sportwagon, '04 V70 2.5T Sportwagon

I am located in midstate New York.

Try Erie VO-VO, a Volvo dismantler near Utica. I've heard they are or have phased out of RWD cars, but a call won't cost you anything.

888-865-8613
or
315-736-8215

A few years ago I has used tanks UPS'd from Arizona and Mass.
But shipping regs may have changed.
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Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.

I'm in Texas so shipping would be difficult.
If the tank smells like gas fumes it won't be shippable, and it takes a lot of time and effort to get it fume-free. I guess if it sits around in the AZ desert for a few years it's OK to ship.
Right now it's in a car, full of gas.
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'89 245 Sportwagon, '04 V70 2.5T Sportwagon

Well hey, it is probably cheaper to pay the shipping on the gas than it would be to buy the gas new!... j.k.
I thought maybe there was a source for new gas tanks. I know that plenty of other makes are obtainable new.