Yours should be a DR1114429 (stamped into the outer casing). Unfortunately these are rare and expensive even as used parts ($400-500.00 on average). I have one here on the shelf owned by a customer who wants me to sell it for him, if you can't find one, it's top dollar.
If yours is an original and still functions and you want it restored I can do that for you. If it does not function and you want it restored I can also help you but it gets more complicated. You would need to provide me with another good working unit that I can swap out the internals from into your outer casing. Any solenoid with the same shape outer casing will work, different part# is ok, used or NOS is ok, as long as it still functions. The reproductions on the market have weaker internals and are not reccomended as parts donors or anything else.
