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SE 216, 1.75:1, 25" Driveshaft
Thumbnail Filmstrip of SE 216, 1.75:1, 25" Driveshaft Images
SE216 Replaces most Mercury 3.0L Lower Units (SN 1B504989 and below). Does not replace the Torque Master, Torque Master 2 or the Sport Master.
13 Spline one-piece drive shaft.If you have an 8 Spline drive shaft, you will need to buy the stub shaft unit
and buy an upper driveshaft from an OE dealer.
25" 45-823901A 1
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 buy the correct part (SEI part number 96-116-12K).