About $50 for he parts at the dealer. It's something you can do in your driveway if desired. If you have the dealer do it, it will be more unless you have a good rapport with them.
See the following, I believe one of them has instructions.
Water Separator Drain lever broke
Fuel separator drain lever broke now wont run please help
broke yellow fuel filter drain lever
I had mine sticking at one point, took it to the dealer with some other warranty issues and let them brake it.
'08 F250 6.4L Lariat 4x4 CC/SRW fully loaded, special ordered
6" Fabtech 2.25 dual shock lift w/18" AR wheels, 35" Toyo AT
Avic-Z2 (Z3 Mod) Nav/Stereo w/iPod, Bluetooth, XM NavTraffic
(2) Rear headrest mnt DVD entertainment systems
Banks CAI, Dual Exhaust, 6-Gun, Speed Brake & iQ (test vehicle)
Bushwacker Fender Flares (color matched)
Ravelco Anti Theft Device
Originally Posted by George Bush
Wait, what did you just say? You're predicting $4 a gallon gasoline?. . . That's interesting. I hadn't heard that.