I too went through Tousley Ford just today.
The price went up $5 since the previously posted price, not bad in these economic times.

When I got a price last week from my local Ford dealer in southeast Arizona, I was quoted $297.
I asked the parts guy if Ford part prices are established nationally or if each dealer is allowed to set their own price. I was told they were nationally set.

I could have bought this for a few dollars less however, this will come with the Ford standard 1 year warantee and I'm more comfortable buying from a known source.

 

Too bad it isn't the selector valve. Mine was the exact same way, drove it hard for three thousand miles (it had sat for two years prior) siphoned the tank and refilled. Works fine now, use it every day and hasn't failed yet