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Mercury Lower Unit Replaces Most Mercury 2.0L, 2.4L AND 2.5L Outboard
July 18, 2024
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Mercury Lower Unit Replaces Most 3 & 4 Cylinder Mercury Outboard

$1,095.00

SKU: 90-205 Category:
Description

Replaces most Mercury 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.
It is best to call us with the serial number so we can confirm fitment before ordering.

Technical:

  1. Replaces most 3&4 Cylinder 2-Stroke 1987 and newer 70-125 HP
  2. Also replaces most 75-115 HP 4-Stroke below Serial #OT801000.
  3. This unit will not replace a 3 jaw lower unit unless you also change the shift shaft in the midsection.
  4. This unit will only work if you have a 4-1/4 bullet diameter.
  5. This unit will not replace models with a plastic water pump housing.
  6. You must verify your Gear Ratio.
  7. 2.31 ratio is no longer available. 2.33 is the proper replacement.
  8. You must verify your engine type, Two Stroke Carb, DFI (Direct Fuel Injection), or 4-stroke.
  9. You must verify your shaft length.
  10. 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.
  11. There is also an LL model which is a 22.5 Inch Shaft. We do not offer this shaft size.
Additional information
Ratio/Type/Shaft:

2.07/2-Stroke Carb/20, 2.07/2-Stroke DFI/20, 2.07/4-Stroke/20, 2.07/2-Stroke Carb/25, 2.07/2-Stroke DFI/25, 2.07/4-Stroke/25, 2.33/2-Stroke Carb/20, 2.33/2-Stroke DFI/20, 2.33/4-Stroke/20, 2.33/2-Stroke 50-60HP Bigfoot/20, 2.33/4-Stroke 40-60HP Bigfoot 20, 2.33/4-Stroke 30-50HP Bigfoot/20, 2.33/2-Stroke Carb/25, 2.33/2-Stroke DFI/25, 2.33/4-Stroke/25, 2.33/4-Stroke 40-60HP Bigfoot/25