90-221-A20 - SE221 Lower Unit Mercury 3.0L V6 2-stroke, 1.75:1, 20 inch, Standard Rotation
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List Price
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Your Price
$1,495.00
Available to Order SPEEDY DELIVERY
30-DAY RETURN
FULL WARRANTY
Part Number
90-221-A20
Manufacturer
SEI Marine
90-221-A20 - SE221 Lower Unit Mercury 3.0L V6 2-stroke, 1.75:1, 20 inch, Standard Rotation
3.0 Liter – V6 – Two Stroke (13 spline drive shaft): (SEI 221-A20, 221-A25 AND 221-A30)
Around 2006, these engines changed from using our SE216 units to our SE221’s. This changed occurred at serial number 1B504989. The SE221 units are what we have been calling the “Verado Style” gearcases.
There are some available gearcases that we do not replace. They are the Torque Master, Torque Master 2 and the Sport Master. These units all have the “Fat Shaft” prop shaft with 19 splines. The SE221 has a 15-spline prop shaft.
The SE221 is considered the “standard” gearcase and may be referred to as a Fleet master.
SEI Marine 90-221-a20 - Se221 Lower Unit Mercury 3.0l V6 2-stroke, 1.75:1, 20 Inch, Standard Rotation is equivalent to parts:
- 880686T29 Mercury Marine
- 80986A43 Mercury Marine
- 1600880686T29 Mercury Marine
- 160080986A43 Mercury Marine
- 1600-880686T29 Mercury Marine
- 1600-80986A43 Mercury Marine
SEI is the largest manufacturer of aftermarket sterndrives and outboard lower units in the world. Every SEI complete gearcase and outdrive carries a 3-Year No-Fault Warranty.
90-221-A20 - SE221 Lower Unit Mercury 3.0L V6 2-stroke, 1.75:1, 20 inch, Standard Rotation 3.0 Liter – V6 – Two Stroke (13 spline drive shaft): (SEI 221-A20, 221-A25 AND 221-A30) Around 2006, these engines changed from using our SE216 units to our SE221’s. This changed occurred at serial number 1B504989. The SE221 units are what we have been calling the “Verado Style” gearcases. There are some available gearcases that we do not replace. They are the Torque Master, Torque Master 2 and the Sport Master. These units all have the “Fat Shaft” prop shaft with 19 splines. The SE221 has a 15-spline prop shaft. The SE221 is considered the “standard” gearcase and may be referred to as a Fleet master.
1,495.00
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