Oil Tank Switch Sensor
For Mercury Outboard 2 Stroke DIF(Optimax):

150HP DFI -------------(0G960500 & Up)
150HP DFI Pro XS ----(1B690542-2B535572)
175HP DFI -------------(0T178500 & Up)
175HP DFI Pro XS ----(1B516339-2B535624)
200/225HP DFI -------(0G960500-0T598999)
200HP DFI XS ---------(0T235000-1E002110)
200HP DFI XS ROS ---(1E050852 & Up)
200HP DFI XS SST ----(1E050629 & Up)
250HP DFI XS ---------(0T651945-0T818042)

For Mercury Outboard 2 Stroke EFI/JET:

110HP JET ----------------(1B690542 & Up)
150HP EFI ----------------(0T409000 & Up)
175HP EFI-----------------(0T409000-0T800999)
200HP EFI ----------------(0T750164-2B528096)
200HP EFI 2.5 L ----------(0T409000 & Up)
225HP EFI ----------------(0T409000-2B528096)
225HP EFI Marathon ----(0T409000-1B417701)
225HP EFI Sea Pro ------(0T409000-1B417701)
300HP 300X EFI Pro Max(0T235084-0T999587)

For Mercury Sportjet Jet Drive DIF(Optimax) :

200HP DFI M2 Drive Powerhead -(0E384500-0E433351)
200HP DFI M2 Drive Pump -------(0E379931 & Up)
200HP DFI Drive Powerhead -----(0E384500 & Up)
200HP DFI Drive Powerhead -----(1B321662-1B321669)
200HP DFI Drive Pump -----------(0E379931-0E428850)
200HP DFI Drive Pump -----------(0M954922 & Up)
250HP DFI/M2 Drive Pump ------(0E407100 & Up)
250HP DFI/M2 Drive Powerhead (0E407100 & Up）