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SE205 (Replaces Most 3 & 4 Cylinder Mercury OB)
Also replaces most 75-115 HP 4-Stroke below Serial #OT801000.
This unit will not replace a 3 jaw lower unit unless you also change the shift shaft in the midsection.
It is best to call us with the serial number so we can confirm fitment before ordering.
- Replaces most 3&4 Cylinder 2-Stroke 1987 and newer 70-125 HP
- Also replaces most 75-115 HP 4-Stroke below Serial #OT801000.
- This unit will not replace a 3 jaw lower unit unless you also change the shift shaft in the midsection.Click Here for shaft installation instructions.
- This unit will only work if you have a 4-1/4 bullet diameter.
- This unit will not replace models with a plastic water pump housing.
- You must verify your Gear Ratio. See Table 1 Below
- 2.31 ratio is no longer available. 2.33 is the proper replacement.
- You must verify your engine type, Two Stroke Carb, DFI (Direct Fuel Injection), or 4-stroke.
- You must verify your shaft length. See Figure 1 below.
- Your model # can also tell you the shaft size. An L is a 20" and an XL is a 25". If in doubt, please verify.
- There is also an LL model which is a 22.5 Inch Shaft. We do not offer this shaft size.
- If you have any questions about your application, please call us at 813-925-7127 with your engine serial number.
