This is a very late reply, but thought I'd put it up for anyone who needed it.
I have a 2007 SMB, the sink faucet is by Ambassador Marine. Model 134-0262-CW (OEM) or 135-0262-CW (aftermarket).
Mine was leaking (as in not turning off completely). After emailing pictures to Ambassador, they sent me out new cartridges (the on off guts) that install under the knobs. Note, you will need new red and blue plastic "dots" too as they must be destroyed to remove them to get at the screw to remove the handle.
Ambassador's info in included in the attached infosheet.
Hope that helps anyone who needs it.