Sorry to point this out, but you can't get that center gasket from Crosman, that part was discontinued a long time ago.
But you can use an autobody gasket from RockAuto Auto Parts
, part # UW55.
(you just have to cut the gasket in half, it's twice as thick as you need, so you end up with 2 gaskets).
Originally Posted by bigbthebenji
I have 9 Crosman 3357 cylinders for sale. 7 of them are in really good condition, index fine, and the center gaskets are not gummy. 2 of them index fine but have center gaskets that have started to gum up a little. New center gaskets are about $5 shipped right from Crosman.
Price - $35 for the better condition ones, $30 for the 2 that may need new center gaskets. Shipping will be $3.50 via first class mail, $5.75 via priority mail.
If someone wants all of them, I'd take $275 shipped for the lot.
Sorry for the crummy pics http://farm9.staticflickr.com/8307/7...9a03ca04a8.jpg http://farm9.staticflickr.com/8300/7...cc779af5ac.jpg