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SE218 Mercury OB Lower Unit



SE218 (Replaces Most Mercury 3.0L Counter Rotation)

SE218 Counter Rotation
Replaces Most Mercury 3.0L Counter Rotation Lower Units
Do not use for standard rotation
13 Splines
25 and 30 inch Shafts.
If you have an 8 Spline drive shaft you will need to buy the stub shaft unit
and purchase an upper driveshaft from an OE dealer.
25" 45-823901A 1
30" 45-824115A 1 (This shaft is no longer available from the OE. You will need to either source a used one or repair your old unit.)

SEI's drives come standard with a three-year, fault-free warranty. This means that the unit is covered for any failure that requires the drive to be repaired or replaced. Run it without lubrication, crash into a stump, suck up some fishing line, it does not matter, the SEI drive is always covered. SEI believes this warranty is one of the best warranties ever offered for a stern drive or a outboard lower unit. Peace of mind while on the water is important, and SEI goes the extra distance to make sure that our products perform.