Complete Outdrives, Uppers and Lowers - SEI Mercury Replacement Outdrives, Uppers and Lowers

Does not Include Complete Install Kit or Anode Kit.
This item is to replace 2.40 Ratio drives only.
Uses the latest style speedometer fitting - OE#860382. This part is not included and will be required to have a working speedometer.

To replace Counter Rotation units only. Do not use for standard rotation.
Will not replace 2.00 and 2.40 ratio units.
Up to 300 HP.
Uses the latest style speedometer fitting - OE#860382. This part is not included and will be required to have a working speedometer.

Will only replace 2.00 or 2.40 ratio units.
Uses the latest style speedometer fitting - OE#860382. This part is not included and will be required to have a working speedometer.

Will not replace 2.00 or 2.40 ratio units.
Up to 300 HP.
Uses the latest style speedometer fitting - OE#860382. This part is not included and will be required to have a working speedometer.

SE116, UPPER 1.47 (Replaces Mercruiser Gen II)
The 1.47 ratio replaces the 1.5 ratio

SE116, UPPER 1.47 MODIFIED (Replaces Mercruiser Gen II)
The 1.47 ratio replaces the 1.5 ratio

SE116, UPPER 1.62 / 2.0 (Replaces Mercruiser Gen II)
The 1.62 ratio replaces the 1.65 and the 2.0 ratio

SE116, UPPER 1.62/2.0 MODIFIED (Replaces Mercruiser Gen II)
The 1.62 ratio replaces the 1.65 and the 2.0 ratio

SE116, UPPER 1.81 (Replaces Mercruiser Gen II)
The 1.81 ratio replaces the 1.84 ratio

SE116, UPPER 1.81 MODIFIED (Replaces Mercruiser Gen II)
The 1.81 ratio replaces the 1.84 ratio

SE116, UPPER 1.94 / 2.40 (Replaces Mercruiser Gen II)
The 1.94 ratio replaces the 1.98 and the 2.4 ratios

SE116, UPPER 1.94 MODIFIED (Replaces Mercruiser Gen II)
The 1.94 ratio replaces the 1.98 and the 2.4 ratios

This item is to replace 1992 and up Bravo One's with the oil passage.

It can be modified to backfit 1988-1991.

The oil passage in the waterway has to be plugged on early models that do not have the passage in the upper. It is best to drill and tap the hole and install a set screw with sealant. Make sure to place the screw flush or slightly below the surface.

This unit has side water intakes only. For dual water intakes see SE122.

This item is to replace 1992 and up Bravo One's with the oil passage.

It can be modified to backfit 1988-1991.

The oil passage in the waterway has to be plugged on early models that do not have the passage in the upper. It is best to drill and tap the hole and install a set screw with sealant. Make sure to place the screw flush or slightly below the surface.

This unit has side and low water intakes. For side water intakes only see SE121.

The SE 206 gear case replaces most Mercury 2.0, 2.4 and
2.5 liter gear cases with 4-3/4 Bullet Diameter.\

SE216
Replaces Most Mercury 3.0L Lower Units
13 Splines
20, 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.
20" 45-824114A 1
25" 45-823901A 1
30" 45-824115A 1 (This item is no longer available from the OE. You will need to source a used one, or fix your old drive.)
If you have a 13 spline two piece shaft just purchase the appropriate
one piece shaft.
The SEI 216 gear cases are supplied with the correct water tube coupling for units with a serial number of OG438000 and higher. If your unit has a lower serial number, you will need to use your old water coupling or purchase the correct part (SEI part number 96-116-12K).

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.)